Highlighted
5 Rhenium

XPS 8930 SE, Exhaust Fan and PSU Upgrade

XPS 8930 Tower Special Edition

  • Motherboard Chipset Intel Kaby Point Z370, Intel Coffee Lake-S
  • 9th Generation Intel® Core™ i9-9900K 8-Core Processor (16M Cache, up to 5.0 GHz)
  • 64GB, DDR4, 2666MHz Samsung
  • 2TB M.2 PCIe NVMe SSD Toshiba
  • nVIDIA® GeForce® GTX 1080 8GB GDDR5X: 3x DisplayPort 1.3 (1.4 Ready), HDMI 2.0, Dual Link DVI-D
  • 11ac + Bluetooth 4.2, Dual Band 2.4&5 GHz, 1x1
  • Windows 10 Pro 64bit English
  • Microsoft® Office 2019 Professional
  • 2 x Dell UltraSharp U2717D 27” InfinityEdge QHD Monitors

I will provide a lot of photos for beginners like myself (click photos to embiggen).

Acknowledgement goes to HanoverB for much information and assistance during this project.

IMG_3610 - Copy.JPG

XPS 8930 SE with which most will be familiar; air flow starved small form case; swing-out PSU

My unit has 2TB SSD only; no spinners, so all the HDD cages are removed.

 

IMG_3613.JPG

My CPU came with the "upgraded" heatsink/blower fan. Unfortunately, the wizards at Dell "downgraded" the top exhaust fan from 120mm to 92mm. The mission was to swap the 92mm top exhaust for for 120mm fan. Initial research revealed that the CPU power connector from the PSU was inconveniently located under the heatsink. So I decided to also upgrade the PSU while I had the heatsink removed and access to the CPU power connector.

 

IMG_3670.JPG

Gain access to the internal organs by removing, in this order; side cover -> optical drive -> front bezel -> top cover (see service manual).

 

IMG_3676.JPG

Make sure you have a clean, suitable work area with space for tools and no clutter.

 

IMG_3681.JPG

Since I was changing out the PSU I took a lot of photos so I would have a record of which connection plugged in where and cable routing. I recommend you do the same if you are a noob like me, but in the end, it was actually very easy.

IMG_3685.JPG

Remove the graphics card.

IMG_3706.JPG

 

IMG_3711.JPG

The CPU fan header is also inconveniently located under the heatsink, so when you remove the blower fan the cable will still be connected. Set it aside gently on the mobo until the heatsink is removed and you can access the fan header connection.IMG_3712.JPG

IMG_3713.JPG

Once the heatsink is removed you can see the two fan headers and the CPU power connector.

IMG_3716.JPG

Clean the thermal paste from the CPU and disconnect the blower fan from the CPU fan header.

IMG_3718.JPG

One screw to easily remove the top exhaust fan bracket and fan.

IMG_3723.JPG

Familiarize yourself with the location of the connections. Fortunately, they are well labeled.

IMG_3730.JPG

This system board power connector can be stubborn, so be very careful. It has a release clip on the back. This would ONLY need to be removed if you are upgrading the PSU.

IMG_3731.JPG

I went with a Seasonic FOCUS 850 watt fully modular PSU. I was originally going to upgrade the OEM 460 watt PSU to 650 watt, but I followed the recommendation of HanoverB and got the 850 watt PSU and I am grateful for that, for reasons that will become more clear in a subsequent thread. You will also need to purchase separately a 6-Pin Slimline SATA 15-Pin SATA Power Cable to re-connect the optical drive to the PSU.

6-Pin Slimline SATA 15-Pin SATA Power Cable

 

IMG_3733.JPG

The Seasonic FOCUS PSU is a perfect fit and a very simple swap (4 screws).

IMG_3736.JPG

For the top exhaust fan I went with the recommended 120mm Noctua 3-pin fan that will spin at a quiet 1,200 rpm. You will need to acquire the Aurora R5 120mm top exhaust fan bracket, which is available on the big auction site.

IMG_3738.JPG

This photo shows the substantial difference between a 92mm fan and a 120mm fan. There is approximately 70% more area with the 120mm fan.

IMG_3740.JPG

Slide the new bracket and fan in place and tighten the screw. Note in this photo that I have installed the new CPU modular power cable from the Seasonic PSU. These cables have a lot more insulation and protection than the OEM wires. The wires coming out of the CPU power connector must be bent at 90 degrees and tucked under the fan to provide clearance for the heatsink when it is re-installed. The top exhaust fan power cable must also be bent over and tucked under the fan.

IMG_3743.JPG

Since the CPU fan header is underneath the heatsink, after you have applied thermal paste to the CPU, you will need to thread the blower fan cable through the heatsink and plug it into the CPU fan header first, and then carefully install the heatsink.

IMG_3745.JPG

Route the blower fan power cable so it is not pinched and install the blower fan.

 

IMG_3746.JPG

Now we are looking to install two front case fans.

 

IMG_3800.JPG

Carefully install the system board power cable and drape it and the CPU power cable towards the back of the case and out of the way.

IMG_3805.JPG

For the front intake fans, again, Noctua 120mm 3-pin 1,200 rpm fans. The Aurora R5 front cooling case fan bracket (7M0F5) can also be acquired on the big auction site and makes installation of the lower front fan very easy.

IMG_3811.JPG

IMG_3814.JPG

I experimented with several different types of gasket/weather strip material for mounting the top front fan and found this type to work best.

IMG_3815.JPG

Cut the weather strip and make a frame by pressing the glue side against the case.

IMG_3818.JPG

Wedge the fan into the weather strip frame making sure it is tight against the front case mesh, and add the final piece as shown to hold the fan in place. Note the position of the fan power cable.

IMG_3825.JPG

The bottom front fan simply snaps into place in the XPS 8930 case with the Aurora R5 bracket. Again, note the position of the power cable.

IMG_3835.JPG

Reinstall the graphics card.

IMG_3840.JPG

Start connecting the modular cables from the PSU. Since the modular cables need to be "universal fit" and the XPS 8930 is a small form case, you will end up with a lot of extra cable length, so cable management is imperative.

IMG_3842.JPG

Add cables slowly and neatly secure them with zip ties, regularly checking clearance and that there is no binding as the PSU swing-out mechanism opens and closes.

IMG_3844.JPG

I chose to power the two front fans off the PSU with an SATA fan splitter cable.

 

IMG_3856.JPG

 

IMG_3858.JPG

IMG_3863.JPG

For front fans I choses these 120mm ModRight filters. This design includes added relief due to the two-tiered construction and the concave nature of the screen material. I tried to use magnetic tape for mounting the filters, but it did not hold well enough, so I ended up using double-sided tape across the corners, as shown.

IMG_3893.JPG

I left some magnetic tape strips in the indented areas to smooth the surface for the double sided tape. Areas that were vented to the inside of the case were sealed off with Gorilla tape so that the fans are drawing air from outside the case. The top cover has also been reinstalled in this photo.

IMG_3872.JPG

The filters are installed with the double-sided tape. The significance of the aforementioned "relief" can be seen here as the lower filter screen clears the case protrusion such that no cutting is required.

IMG_3889.JPG

 

The inserts on the front bezel need to be cut with a Dremel cutting wheel.

IMG_3896.JPG

The front bezel is reinstalled.

IMG_3897.JPG

The optical drive is reinstalled and connected to power using the previously mentioned 6-Pin Slimline SATA 15-Pin SATA Power Cable.

IMG_3931.JPG

Re-connect your peripherals and enjoy.

 

Added link to follow-up thread

XPS 8930 SE - CPU & GPU Water Cooling; External Rad

93 Replies
Highlighted
4 Tellurium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

I like the way you blocked all the holes around the front fans so air only comes from the 1/4" wide vents around the front and I like the weather stripping to mount the fans which eliminates vibration noise but I doubt if the top front fan was necessary. A large bottom one will pull plenty of air and give it that L shaped swoosh of air that goes back and up while the top one is blocked by sheet metal etc and may even upset the flow. I would like to see results of disconnecting that top front one. Did you take any advice from the thread I did on adding fans? Everyone else just throws them in there and hot air just circulates around and around them. You have to isolate the front vents and draw exclusively from them which it looks like you did. Also, I wonder why everyone in here uses those Noctura fans since they are all basically just a fan in a case with a motor. I'm not seeing any silver bullet there. My Arctic front fan addition does everything it's supposed to do and it's totally quiet.

Dell XPS 8920 silver edition
7th gen i7 Intel CPU
Samsung 850 evo SSD for boot
Added front fan
16gb of memory
AMD video/graphic card
I buy a new Dell every 4 years for the last 25 years

0 Kudos
Highlighted
4 Tellurium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade


@546insp wrote:

 Also, I wonder why everyone in here uses those Noctura fans since they are all basically just a fan in a case with a motor. I'm not seeing any silver bullet there. My Arctic front fan addition does everything it's supposed to do and it's totally quiet.


The Arctic F12 3 pin fan is an excellent nice fan.  Especially for the money at 1/2 price of the Noctua.   The Noctua NF-S12A case fan has about 10-15% more airflow at a slightly lower RPM,  is a little quieter, uses a little less current (0.12 A vs 0.24A), and comes with some accessories like the low noise adapter, extension cable, Y cable splitter, rubber fan installation pins, rubber anti-vibration mounts, extension cable.  Both have 6 year warranty.   So if the other accessories aren't important to you and you are not into min/max, the Arctic F12 3 pin is a nice fan.   Arctic fan looks better for sure.  

0 Kudos
Highlighted
4 Tellurium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade


@HanoverB wrote:

@546insp wrote:

 Also, I wonder why everyone in here uses those Noctura fans since they are all basically just a fan in a case with a motor. I'm not seeing any silver bullet there. My Arctic front fan addition does everything it's supposed to do and it's totally quiet.


The Arctic F12 3 pin fan is an excellent nice fan.  Especially for the money at 1/2 price of the Noctua.   The Noctua NF-S12A case fan has about 10-15% more airflow at a slightly lower RPM,  is a little quieter, uses a little less current (0.12 A vs 0.24A), and comes with some accessories like the low noise adapter, extension cable, Y cable splitter, rubber fan installation pins, rubber anti-vibration mounts, extension cable.  Both have 6 year warranty.   So if the other accessories aren't important to you and you are not into min/max, the Arctic F12 3 pin is a nice fan.   Arctic fan looks better for sure.  


Low noise adapter? My Arctic PMW? fan came with the splitter and I like the use of weather stripping better plus there is always hype and it's just about who can hype enough without getting called on the carpet about it. It's kind of like saying my egg spatula is the best out there and it flips like crazy with never a problem. I'm just not buying the "extra" quality of something as simple as a little fan.

Dell XPS 8920 silver edition
7th gen i7 Intel CPU
Samsung 850 evo SSD for boot
Added front fan
16gb of memory
AMD video/graphic card
I buy a new Dell every 4 years for the last 25 years

0 Kudos
Highlighted
4 Tellurium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade


@546insp wrote:

@HanoverB wrote:

@546insp wrote:

 Also, I wonder why everyone in here uses those Noctura fans since they are all basically just a fan in a case with a motor. I'm not seeing any silver bullet there. My Arctic front fan addition does everything it's supposed to do and it's totally quiet.


The Arctic F12 3 pin fan is an excellent nice fan.  Especially for the money at 1/2 price of the Noctua.   The Noctua NF-S12A case fan has about 10-15% more airflow at a slightly lower RPM,  is a little quieter, uses a little less current (0.12 A vs 0.24A), and comes with some accessories like the low noise adapter, extension cable, Y cable splitter, rubber fan installation pins, rubber anti-vibration mounts, extension cable.  Both have 6 year warranty.   So if the other accessories aren't important to you and you are not into min/max, the Arctic F12 3 pin is a nice fan.   Arctic fan looks better for sure.  


Low noise adapter? My Arctic PMW? fan came with the splitter and I like the use of weather stripping better plus there is always hype and it's just about who can hype enough without getting called on the carpet about it. It's kind of like saying my egg spatula is the best out there and it flips like crazy with never a problem. I'm just not buying the "extra" quality of something as simple as a little fan.


I think you just like to disagree, even when I say something where I agree with you.  

Pretty funny actually.

You need to do more fun stuff like this instead of watching YouTube videos on your  machine.

 

IMG_8245.JPG

Winchmaster Pikie

 

0 Kudos
Highlighted
4 Tellurium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade


@HanoverB wrote:

@546insp wrote:

@HanoverB wrote:

@546insp wrote:

 Also, I wonder why everyone in here uses those Noctura fans since they are all basically just a fan in a case with a motor. I'm not seeing any silver bullet there. My Arctic front fan addition does everything it's supposed to do and it's totally quiet.


The Arctic F12 3 pin fan is an excellent nice fan.  Especially for the money at 1/2 price of the Noctua.   The Noctua NF-S12A case fan has about 10-15% more airflow at a slightly lower RPM,  is a little quieter, uses a little less current (0.12 A vs 0.24A), and comes with some accessories like the low noise adapter, extension cable, Y cable splitter, rubber fan installation pins, rubber anti-vibration mounts, extension cable.  Both have 6 year warranty.   So if the other accessories aren't important to you and you are not into min/max, the Arctic F12 3 pin is a nice fan.   Arctic fan looks better for sure.  


Low noise adapter? My Arctic PMW? fan came with the splitter and I like the use of weather stripping better plus there is always hype and it's just about who can hype enough without getting called on the carpet about it. It's kind of like saying my egg spatula is the best out there and it flips like crazy with never a problem. I'm just not buying the "extra" quality of something as simple as a little fan.


I think you just like to disagree, even when I say something where I agree with you.  

Pretty funny actually.

You need to do more fun stuff like this instead of watching YouTube videos on your  machine.

 

IMG_8245.JPG

 

 


Spending hundreds of dollars and hundreds of hours to cool down one PC is funny...…..more like sad. How did you find time to catch that wimpy bass?      lol

Dell XPS 8920 silver edition
7th gen i7 Intel CPU
Samsung 850 evo SSD for boot
Added front fan
16gb of memory
AMD video/graphic card
I buy a new Dell every 4 years for the last 25 years

0 Kudos
Highlighted
4 Tellurium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

Actually using Gorilla Glue, duct tape and weatherstripping in your computer case is funny..........

Not all small, from last year, both caught on WInchmaster wood top water.

IMG_0042.JPG

IMG_0073.JPG

Bottom is 43", 30 pound porker....nice fish on the west coast.....both released after pics were taken

0 Kudos
Highlighted
4 Tellurium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade


@546insp wrote:


Spending hundreds of dollars and hundreds of hours to cool down one PC is funny...…..more like sad. 

How did you find time to catch that wimpy bass?      lol


It’s more of a hobby, at the same time accepting a challenge, something obviously you don’t understand.

Doing something others said couldn’t be done, doing it right and enjoying the fruits of your labor.

Doing it for the right reasons as well.  When you build a nice machine with your grandson, he thinks you are his hero.   Taking him fishing.    Sad?  Don't think so.

You focus too much on putting others down and belittling their efforts.  Ignoring evidence to the contrary of what you believe to be true and hanging on to it..  Now that's sad.

 

 

0 Kudos
Highlighted
4 Tellurium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade


@HanoverB wrote:

@546insp wrote:


Spending hundreds of dollars and hundreds of hours to cool down one PC is funny...…..more like sad. 

How did you find time to catch that wimpy bass?      lol


It’s more of a hobby, at the same time accepting a challenge, something obviously you don’t understand.

Doing something others said couldn’t be done, doing it right and enjoying the fruits of your labor.

Doing it for the right reasons as well.  When you build a nice machine with your grandson, he thinks you are his hero.   Taking him fishing.    Sad?  Don't think so.

You focus too much on putting others down and belittling their efforts.  Ignoring evidence to the contrary of what you believe to be true and hanging on to it..  Now that's sad.

 

 


The work I did on my PC was a total success actually and quite simple. The mod will delete all this hoopla anyway...….that you started. Nobody cares about your fish, put them on the bass forum.

Dell XPS 8920 silver edition
7th gen i7 Intel CPU
Samsung 850 evo SSD for boot
Added front fan
16gb of memory
AMD video/graphic card
I buy a new Dell every 4 years for the last 25 years

0 Kudos
Highlighted
2 Bronze

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

How do you remove the cpu cable from the metal or the routing guide. 

0 Kudos
Highlighted
4 Ruthenium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

The metal routing guide isn't fully closed. It's like a c-shaped clip and you should be able to slide the cable out the side. No?

0 Kudos
Highlighted
5 Rhenium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

@User4298 

yes

image.png

0 Kudos
Highlighted
2 Bronze

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

What does that mean? Please elaborate

0 Kudos
Highlighted
5 Rhenium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

@User4298   What does that mean? Please elaborate

The metal routing guide isn't fully closed. It's like a c-shaped clip and you should be able to slide the cable out the top by pushing up. You may have to bend the clip slightly to loosen the cable.

(click on photo to embiggen)

1clip.jpg

 

0 Kudos
Highlighted
2 Bronze

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

hello I just booted up the computer and can’t turn down the fans, any help?

0 Kudos
Highlighted
3 Argentum

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

@User4298 

3-conductor/pin fans run at full rated speed.  4-conductor/pin PWM fans run at the speed decided by the system BIOS, IF plugged into the 4-pin fan header on the motherboard (not the PSU).  A 4-conductor/pin PWM fan will run at full rated speed like a 3-conductor/pin fan, IF only connected to the first three conductors.

Running the case fans at full rated speed all of the time is generally not necessary and is noisier, so PWM fans and BIOS control is preferred, imo.

Here's a link to my fan upgrade details:  https://www.dell.com/community/XPS-Desktops/XPS-8930-how-is-the-cooling-in-the-i9-9900/m-p/7508730/h...

GK

0 Kudos
Highlighted
5 Rhenium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

@User4298   hello I just booted up the computer and can’t turn down the fans, any help?

It would be really helpful if you could tell us what fans you installed, how, and where. If you could post photos, each one is worth 1,000 words.

 

0 Kudos
Highlighted
2 Bronze

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

It was also stuck to this clip. 

0 Kudos
Highlighted
5 Rhenium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade


@546insp wrote:

I like the way you blocked all the holes around the front fans so air only comes from the 1/4" wide vents around the front and I like the weather stripping to mount the fans which eliminates vibration noise but I doubt if the top front fan was necessary. A large bottom one will pull plenty of air and give it that L shaped swoosh of air that goes back and up while the top one is blocked by sheet metal etc and may even upset the flow. I would like to see results of disconnecting that top front one. Did you take any advice from the thread I did on adding fans? Everyone else just throws them in there and hot air just circulates around and around them. You have to isolate the front vents and draw exclusively from them which it looks like you did. Also, I wonder why everyone in here uses those Noctura fans since they are all basically just a fan in a case with a motor. I'm not seeing any silver bullet there. My Arctic front fan addition does everything it's supposed to do and it's totally quiet.


If I recall (may be mistaken) your XPS 8930 came with a half-size graphics card. The internal case air flow dynamics would be very different than a case with a full size graphics card. It is true that there are many obstructions blocking the top front fan, but some additional air flow is better than no additional air flow. I am very pleased with the performance of the Noctua FLX case fans, but I understand there are many, equally viable fan options.

0 Kudos
Highlighted
4 Tellurium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

 


@Dell630i wrote:

@546insp wrote:

I like the way you blocked all the holes around the front fans so air only comes from the 1/4" wide vents around the front and I like the weather stripping to mount the fans which eliminates vibration noise but I doubt if the top front fan was necessary. A large bottom one will pull plenty of air and give it that L shaped swoosh of air that goes back and up while the top one is blocked by sheet metal etc and may even upset the flow. I would like to see results of disconnecting that top front one. Did you take any advice from the thread I did on adding fans? Everyone else just throws them in there and hot air just circulates around and around them. You have to isolate the front vents and draw exclusively from them which it looks like you did. Also, I wonder why everyone in here uses those Noctura fans since they are all basically just a fan in a case with a motor. I'm not seeing any silver bullet there. My Arctic front fan addition does everything it's supposed to do and it's totally quiet.


If I recall (may be mistaken) your XPS 8930 came with a half-size graphics card. The internal case air flow dynamics would be very different than a case with a full size graphics card. It is true that there are many obstructions blocking the top front fan, but some additional air flow is better than no additional air flow. I am very pleased with the performance of the Noctua FLX case fans, but I understand there are many, equally viable fan options.

I would really like to see a test of the difference in cooling with the top front fan disconnected vs connected. My gpu wasn't full length but I doubt if it mattered. I never was a fan of the top fan plus it eliminates the use of that bay for anything in the future including selling appeal.


 

Dell XPS 8920 silver edition
7th gen i7 Intel CPU
Samsung 850 evo SSD for boot
Added front fan
16gb of memory
AMD video/graphic card
I buy a new Dell every 4 years for the last 25 years

0 Kudos
Highlighted
4 Tellurium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

I would really like to see a test of the difference in cooling with the top front fan disconnected vs connected. My gpu wasn't full length but I doubt if it mattered. I never was a fan of the top fan plus it eliminates the use of that bay for anything in the future including sellin
Dell XPS 8920 silver edition
7th gen i7 Intel CPU
Samsung 850 evo SSD for boot
Added front fan
16gb of memory
AMD video/graphic card
I buy a new Dell every 4 years for the last 25 years

0 Kudos
Highlighted
4 Tellurium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade


@546insp wrote:
I would really like to see a test of the difference in cooling with the top front fan disconnected vs connected. My gpu wasn't full length but I doubt if it mattered. I never was a fan of the top fan plus it eliminates the use of that bay for anything in the future including sellin

Classic front to back cooling model has two front intakes and a rear exhaust (either roof or rear). 

The top exhaust fan is the most efficient way of airflow, pulling air out of a case is easier than pushing air in. That is the way the Dell XPS 8930 case is setup.  When airflow is needed, the first additional intake fan you add to a case has the most effect in airflow.  Once you add more fans there is a diminishing return with each fan you add, but they do help.  

Think of a whole house cooling fan.

So with that roof vent fan working pulling hot air out of your home, one open door at a lower level will help cool the house dramatically as the cooler air is pulled in as the hot air is pulled out. 

With each other opening in the house, more cooler air is pulled in and though the effect is diminished, you can certainly control which rooms are cooler by opening the window in a particular room to cool that versus another room that isn’t that important. 

So in this case we are trying to get more cooler air to the CPU area as there isn’t much airflow to that area and the hot air from the GPU is rising up past the CPU as it is pulled out of the case by the top exhaust.

The lower fan helps with both getting more air to the GPU intake fan and introducing cooler air into the case.  That is huge.  Because it is directed to the GPU it helps with the hot spot that forms there and will decrease overall case temps.  But the problem is getting that airflow to the upper part of the case from the lower intake fan because of all the obstructions.  Primarily the PSU bracket.  So the second fan helps bring cool air into the case directed to the CPU.

 

That’s why the classic case design is two front intakes and one exhaust. 

1) The exhaust is much more efficient than the intake fans.  That’s why Dell630I saw the biggest change in his machine when he went from the 92mm fan to a 120mm top exhaust fan.

2) Adding that lower front intake fan has a profound effect.  So I am not disagreeing with your findings, you saw that when you added the lower front intake fan to your machine.  It solved all your issues.

3) That second fan doesn’t have the same effect as the first but it helps quite a bit.  The effects of adding fans is different with each scenario, but in this case it certainly helps. As you start doing more intensive tasks with your machine, each fan helps with the airflow (up to the point of diminishing returns).

I think I read here that once you got to five fans the effects were minimal.

https://www.bit-tech.net/reviews/tech/the-big-cooling-investigation/6/

 

How much air can be effectively pulled through that front intake fan at that HDD location?  Enough cool air through a radiator in that position with the H60 CPU liquid cooler installed to keep the i7 8700 CPU temps at 52 degrees under a 100% load.  I would think that kind of airflow is helpful.

Don’t even know why I am writing this.  You are going to say it’s all egg spatula heresy anyway.

Highlighted
4 Tellurium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

Well written post with great pictures.  Awesome job.   Nice cable management.   Looked like you had fun doing it too!    Added a link to this post and some of your pics to the long XPS 8930 thread in the fan upgrade summary.  Thanks.

That is a nice CPU.   How does that SE cooler handle temps?  I have read it's better than the stock cooler but it still can't handle the temps at loads.  No way you can overclock.

Let's see the full liquid cooling loop  emoticon.Yes.title

0 Kudos
Highlighted
5 Rhenium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade


@HanoverB wrote:

Well written post with great pictures.  Awesome job.   Nice cable management.   Looked like you had fun doing it too!    Added a link to this post and some of your pics to the long XPS 8930 thread in the fan upgrade summary.  Thanks.

That is a nice CPU.   How does that SE cooler handle temps?  I have read it's better than the stock cooler but it still can't handle the temps at loads.  No way you can overclock.

Let's see the full liquid cooling loop  emoticon.Yes.title


Thank you very much, for the complements, and for all of the advice you provided through the process.

If you are referring to the "upgraded" heat sink and blower fan; for my purposes that worked just fine, but not until the 92mm top exhaust fan was changed to 120mm. I am not a gamer, overclocker, and I do not do video rendering or any other CPU/GPU intensive work. I solved my heat issues with the top exhaust fan upgrade. Now I'm just having fun!

water project link added to end of original post

0 Kudos
Highlighted
4 Tellurium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade


@Dell630i wrote:

@HanoverB wrote:

Well written post with great pictures.  Awesome job.   Nice cable management.   Looked like you had fun doing it too!    Added a link to this post and some of your pics to the long XPS 8930 thread in the fan upgrade summary.  Thanks.

That is a nice CPU.   How does that SE cooler handle temps?  I have read it's better than the stock cooler but it still can't handle the temps at loads.  No way you can overclock.

Let's see the full liquid cooling loop  emoticon.Yes.title


Thank you very much, for the complements, and for all of the advice you provided through the process.

If you are referring to the "upgraded" heat sink and blower fan; for my purposes that worked just fine, but not until the 92mm top exhaust fan was changed to 120mm. I am not a gamer, overclocker, and I do not do video rendering or any other CPU/GPU intensive work. I solved my heat issues with the top exhaust fan upgrade. Now I'm just having fun!

water project link added to end of original post


I don't use games etc either but my 8920 was very noisy when running YouTube, a virus scan, and another program in the background at the same time, even with the 120mm top fan it came with. Just the addition of one 120mm front fan and blocking the air from recirculating around it and inducting only outside front air completely knocked out my noise problem and my PC went from being annoying to use to a joy to use.

Dell XPS 8920 silver edition
7th gen i7 Intel CPU
Samsung 850 evo SSD for boot
Added front fan
16gb of memory
AMD video/graphic card
I buy a new Dell every 4 years for the last 25 years

0 Kudos
Highlighted
1 Copper

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

Wow, I added these fans, following your instructions without changing the power supply or heat sink. I found the heat sink had one of those pads installed from Dell instead of CPU paste. Before this, if I did anything with my i9 8930 (specs just like yours) it heated to 100c and boosted the fan to airport sound levels. Carefully, cleaning, adding good CPU paste, and adding those three big fans has me running cinebench with the processor maxxing about about 97c and never boosting the CPU fan to max levels. MY machine is virtually silent and cool. The workhorse I wanted. Thanks so much for the inspiration to do this!!! You rock. 

0 Kudos
Highlighted
4 Tellurium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

Who rocks?

Dell XPS 8920 silver edition
7th gen i7 Intel CPU
Samsung 850 evo SSD for boot
Added front fan
16gb of memory
AMD video/graphic card
I buy a new Dell every 4 years for the last 25 years

0 Kudos
Highlighted
5 Rhenium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

HudsonHenry
1 Copper

 

I'm happy that it worked out for you. Did you take any photos of your project you might want to share?

0 Kudos
Highlighted
3 Silver

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

Doesn't the CPU blower spool up by the time it's hit 97c?

That's pretty toasty.

On my 8930, the PWM fans attached to the mobo go to max RPM at about 90c.

0 Kudos
Highlighted
5 Rhenium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

ivanmoe
ivanmoe
1 Nickel

 

Post photos of your rig?

0 Kudos
Highlighted
3 Silver

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

Picture of my rig?

Hah, here's a configuration that doesn't work:

IMG_0291.JPG

Note the sound card beneath the graphics adapter (EVGA 1660 ti Black). The X-Fi blocks the fan on what is already a fairly hot graphics card. Bad idea. In running the Superposition Benchmark, I found that the EVGA card was basically just getting hotter as I ran successive tests. I shut it down at 77c and removed the sound card. The 1660 ti settled down nicely at 71c and wouldn't budge. Took a pic for you guys:

Superposition_Benchmark_v1.1_11635_1563667627.png

But, that's not what I want to talk to you guys about today... 😉

Any thoughts on which fan to hook up to the exhaust fan header? 

I've only got one PWM fan header to work with, and I want to get the most bang for the cooling-buck out of it.

I've currently got a 120mm/1500rpm Noctua Chromax in the exhaust opening that runs wide open off the PSU.

A second 120mm/1500rpm Chromax is in the lower/front intake and is connected to the PWM fan header, running at low speed (unless the CPU phones home).

If I reverse the fan connections, the GPU (EVGA 1660 XC Ultra) runs about 2c cooler, however CPU temps run 3c hotter.

One way or the other, the HSF and fan upgrades to a "plain Jane 8930" have quieted it down considerably.

 

Highlighted
5 Rhenium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

We can't see your photos until they are approved by the moderator. Looking forward though.

I am going to re-do my water loop so I was checking into fans. I currently have three Noctua NF-12A FLX 3-pin fans (top exhaust and 2 in the front) spinning at a constant 1200 rpm; 17.8 dB. I am thinking about switching to the Corsair ML 120 RGB LED Pro fans; max 1600 rpm; 25 dB; 1.78 mmH2O static pressure.

0 Kudos
Highlighted
3 Silver

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

I am going to re-do my water loop so I was checking into fans. I currently have three Noctua NF-12A FLX 3-pin fans (top exhaust and 2 in the front) spinning at a constant 1200 rpm; 17.8 dB. I am thinking about switching to the Corsair ML 120 RGB LED Pro fans; max 1600 rpm; 25 dB; 1.78 mmH2O static pressure.

Do we know how fast fans on the PWM headers are actually spinning? I have no idea, excepting that I'm relatively certain that they are awfully slow, UNTIL the mobo tells them to spool up. This is really at the heart of the question in my post above, BTW. On the one hand, I really want good output from my exhaust fan. On the other, I don't necessarily want to cripple the output of the fan that I put on the mobo header. Would it be advisable to put a fan on the header solely to keep the mobo happy, and run two dedicated fans that produce a discreet RPM off of the PSU? Seems like a goofy direction to take the system, but might be necessary to get the airflow that I'm looking for.

0 Kudos
Highlighted
5 Rhenium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

still waiting for your pics to be mod approved.

Would it be advisable to put a fan on the header solely to keep the mobo happy, and run two dedicated fans that produce a discreet RPM off of the PSU? Seems like a goofy direction to take the system, but might be necessary to get the airflow that I'm looking for.

That is exactly why I went with the 3-pin fan option; not modulated by the BIOS. The Noctua fans I mentioned above are a quiet 17.8 dB at 1200 rpm. They come with reducers for 900 rpm and 700 rpm, but why would I want to slow down a quiet fan. My system cannot be "too cool".

0 Kudos
Highlighted
3 Silver

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

That is exactly why I went with the 3-pin fan option; not modulated by the BIOS. The Noctua fans I mentioned above are a quiet 17.8 dB at 1200 rpm. They come with reducers for 900 rpm and 700 rpm, but why would I want to slow down a quiet fan. My system cannot be "too cool".

So, you've chosen not to use the Case Fan header on the motherboard? Makes sense, in that it's really just effective at controlling High Speed fans. It's a shame, in the case of the 8930, that the implementation is pretty much 2-speed, slow and 5400rpm! If you're happy with what you're seeing temp-wise, you might want to consider sticking with the 1200rpm fans. From where you are, each 100rpm that you add is going to impact the noise level. I can absolutely tell the difference between Noctua 1300rpm fans that I started with and the 1500rpm model that I'm using now.

0 Kudos
Highlighted
5 Rhenium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

If you're happy with what you're seeing temp-wise, you might want to consider sticking with the 1200rpm fans. From where you are, each 100rpm that you add is going to impact the noise level. I can absolutely tell the difference between Noctua 1300rpm fans that I started with and the 1500rpm model that I'm using now.

OK, that is good information. I was not sure how much louder 25 db is that 17.8 db (times 3 fans). In my current configuration, I have the 3-pin top exhaust fan connected to the top fan header and the two 3-pin front intake fans connected to the CPU fan header with a y-splitter (blue). This is to avoid the BIOS fan error at start-up, since I no longer have a CPU fan.

w47.JPG

 

 

0 Kudos
Highlighted
4 Tellurium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

Reminds me of rebuilding a 1993 Dodge Lancer so it will run like a top. I would buy a model that stays cool.
Dell XPS 8920 silver edition
7th gen i7 Intel CPU
Samsung 850 evo SSD for boot
Added front fan
16gb of memory
AMD video/graphic card
I buy a new Dell every 4 years for the last 25 years

0 Kudos
Highlighted
5 Rhenium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

546insp
3 Argentium
0 Kudos
Highlighted
4 Tellurium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

Yea I guess, if you need all that power in that size case you have to pay the piper to keep it cool.

Dell XPS 8920 silver edition
7th gen i7 Intel CPU
Samsung 850 evo SSD for boot
Added front fan
16gb of memory
AMD video/graphic card
I buy a new Dell every 4 years for the last 25 years

0 Kudos
Highlighted
5 Rhenium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

546insp
3 Argentium
Highlighted
2 Bronze

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

Hi there!

I came across this thread purely by accident and I'm so glad that I did.

I have a XPS-8930 SE with that small 92mm exhaust fan at the top of the unit and would like to have more air circulate in the case to lower the overall temps. I see that you have installed a Noctua NF-S12A FLX 3 pin fan.

However, the stock fan is a 92mm Dell VM20H, that is a 4 pin fan.

So what exactly is the difference between the two fans from a pin perspective? Must be important.

I would also like to get the larger Dell Fan Bracket for the Noctua, but all I can find is a used Dell 120 mm fan and bracket as one assembly on EB. Is there a way to get the plate new? I see the Dell part number on your 120mm plate but can't make it out. Perhaps you can share that Dell plate part number.

Lastly, is the hole on the top of the 8930 going to accept the 120mm or do I have to cut it?

Many thanks for your great thread(s) and I look forward to your detailed reply.

Cheers! 🙂

BTW - Noctua does offer a 4 pin fan:

NF-S12A PWM, Premium Quiet Fan, 4-Pin (120mm, Brown) but it may be quite different.

 

0 Kudos
Highlighted
5 Rhenium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

@Compumind    So what exactly is the difference between the two fans from a pin perspective?

The 4-pin fans allow for Pulse Width Modulation; control of the fan speed through software or computer hardware. The 3-pin fans will run at a constant speed. For me, since the Noctua fans I used were very quiet at their top speed of 1200 rpm, I saw no reason slow them down through modulation.

I would also like to get the larger Dell Fan Bracket for the Noctua

There are 2 fan brackets from the Aurora R5/6/7 that will work on the XPS 8930, as the cases are the same. The part number is the same for both brackets; 7M0F5 and they can be purchased on the big auction site  Aurora 7M0F5   You will probably have to purchase the fan also; just replace it with the Noctua. Make certain the bracket is included in your purchase, and not just the fan. The brackets are for the top exhaust position and the lower front intake position.

Lastly, is the hole on the top of the 8930 going to accept the 120mm or do I have to cut it?

No cutting required; slips into place with one screw. The bracket is the same size as the one with your 92mm fan, and mounts exactly the same way. (click photo to embiggen)

IMG_3738.JPG

 

Note: if you have the blower fan/heatsink like the one I had, it will need to be removed to access the fan and fan power header, so you will also need some thermal compound for reinstalling the heatsink.

This is the lower front intake fan bracket.

IMG_3805.JPG

 

Highlighted
2 Bronze

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

Hi!

Thanks for your responses!

Are you saying that the lower front fan should be replaced as well with the same components of the top fan?

If so, I would need to order two sets, correct?

Is the lower front fan hole enlarged to accept the 120mm fan?

Seems that the lower front uses a different bracket? If so, what do I need to order (specify)?

Can I get away with just the top exhaust fan or would that inhibit airflow and make noise?

Need just a bit of clarification. Thanks again for your prompt reply!

🙂

 

0 Kudos
Highlighted
5 Rhenium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

@Compumind   Can I get away with just the top exhaust fan? Need just a bit of clarification.

Post some photos of the inside of your computer, so we can see what your setup looks like. The photos will have to be moderator approved before anyone else can see them, which can take some time.

The most important fan to replace in my situation was the top exhaust fan. What CPU, graphics card and PSU wattage do you have? The two fan brackets are different, as pictured above; one metal, one black plastic.

If you only want to replace the top exhaust fan, you would only need the metal fan bracket, and some thermal compound. If you were considering upgrading your PSU, now would be the time to do that.

I can be more specific after you post your components and some photos.

EDIT: the XPS 8930 case already has the mounting notches for the Aurora R5/6/7 lower front intake fan bracket. It simply snaps into place.

IMG_3829.JPG

 

 

Highlighted
2 Bronze

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

Hi again...

Unmodified system, with the ECO cpu fan change just like your pics.

However, I do have one question for you:

If I just replace the Top Exhaust Fan with the 4 pin PWM Noctua 120mm:

Will it throw the airflow out of balance and create noise?

I would leave all the other fans alone.

What do you think?

Thanks again and Happy Holidays! 🙂

 

 

0 Kudos
Highlighted
5 Rhenium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

@Compumind   Unmodified system . . .

Not much help . . . 95 watt CPU or 65 watt CPU . . . full length graphics card or short card . . . blower style GPU cooler or triple fan . . . these make a difference in the amount of heat generated inside the case and the internal air flow dynamics (or lack thereof)

Will it throw the airflow out of balance and create noise?

No, nothing will be thrown out of balance. The amount of noise will depend on the rpm of the fan you install. The Noctua 120mm PWM fans range from a quiet 700 rpm @ 6.8 dB to Industrial 3000 rpm @ 43.5 dB 😱   I would recommend 1200 rpm to 1500 rpm for your top exhaust fan (but I still don't know your specific components)

Noctua Fans 

I would leave all the other fans alone.

What other case fans do you have besides the top exhaust fan?? (if you posted photos I would not have to ask)

0 Kudos
Highlighted
4 Tellurium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

I would just make sure the top fan is 120mm and just put a 120mm fan in the lower rear mounted with double sided thick tape and no special brackets (I don't know why everyone uses those Noctua fans) but if it spins more than 1000 rpm it will start getting noisy. Don't use screws to mount fans to metal because it will accentuate the vibration noise. Make sure you block ALL the holes etc around that new 100mm bottom rear fan so ALL the air will come from outside and not just recirculate hot air.

Dell XPS 8920 silver edition
7th gen i7 Intel CPU
Samsung 850 evo SSD for boot
Added front fan
16gb of memory
AMD video/graphic card
I buy a new Dell every 4 years for the last 25 years

Highlighted
5 Rhenium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

@Compumind    If I just replace the Top Exhaust Fan with the 4 pin PWM Noctua 120mm . . .

Have you made any progress on these modifications?  If you are still in the planning stage, I may be able to help you out with some of those parts, if you are located somewhere in the lower 48 states.

Highlighted
2 Bronze

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

@Dell630i 

Hi!

Thanks for your reply...

I have the Dell  7M0F5 AVC 120mm fan - new!

However, I need the Dell part number for the 120mm Dell metal Fan Bracket also called the Mount Plate.

I have a stamped part number, but there is a Dell code 4-5 characters, which would be most helpful.

The stamped part code on the metal is: 13P1-4ZN0201

That doesn't work to identify the part per Dell. It would be a small white sticker on the metal plate.

This would be much appreciated.

Happy holidays!

🙂

0 Kudos
Highlighted
5 Rhenium

Re: XPS 8930 SE, Exhaust Fan and PSU Upgrade

@Compumind    The stamped part code on the metal is: 13P1-4ZN0201

Click on photo to embiggen.

image.png

 

 

 

 

 

These parts can be purchased from the big auction site. They do not need to be purchased new! from Dell. These are not electronics or moving parts that wear, they are fan brackets. Again, if you are interested in the lower front intake fan bracket (black plastic), and you live in the lower 48 states, I have one that I am no longer using I can send you. Also, if you want to replace the new! Dell OEM industrial grade server fan with some quiet Noctua fans, I have some of those I can send as well; 3-pin or 4-pin, your choice. If you are interested, message me a shipping address.