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Last reply by 09-28-2021 Unsolved
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2 Bronze
2 Bronze
10306

XPS 8930, how is the cooling in the i9-9900?

I am purchasing an 8930 with the i9 9900. I am just looking for opinions as to overheating. Is there much or any. I don't do gaming except for occasional online games. I do run Photoshop & Premiere a few times a week. I appreciate any input. Thank you.

Replies (19)
7 Thorium
9798

A lot depends on the cooling solution used as with any CPU. But judging by this review and series of tests, the i9 9900K runs cooler than the i7 8700K. But if you are not overclocking, and why would you, then the 9900 should impress with it's speed and performance and temps should stay well within a comfort range.

A little more information on this page though it is older, but deals with the 9900.




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9794

Thanks for the response.

Anonymous
Not applicable
9785

@abcoltsfan   I am just looking for opinions as to overheating.

Be aware that, since the i9-9900 is a 65 watt processor, your XPS 8930 will most likely NOT have the upgraded blower fan/heatsink CPU cooling solution that comes with the i9-9900K 95 watt processor.

Some people do not have heat issues with the non-K CPU cooler, others have heat problems and crazy screaming fan noise. This is what the upgraded blower fan/heatsink looks like on the 95 watt processors ("K" models) compared to the 65 watt CPU cooling solution (click photos to embiggen)

95 watt CPU

IMG_3835.JPG

 

 

 

 

 

 

 

 

 

 

 

 

65 watt CPU

img_4046_crx_sm-100705891-orig.jpg

 

9780

Good to know. Thank you.

3 Argentum
9726

@abcoltsfan 
I am purchasing an 8930 with the i9 9900. I am just looking for opinions as to overheating. Is there much or any. I don't do gaming except for occasional online games. I do run Photoshop & Premiere a few times a week. I appreciate any input. Thank you.

I have the XPS 8930 with i9-9900 (non-K version) and RTX2060.  I don't do gaming.

I chose the XPS for traditional Dell desktop purchase reasons.  I chose the CPU for its Hyperthreading; 65W TDP; and stock, non-K version CPU cooler.  The lessor i9-9700 does not support Hyperthreading.  The 95W TDP overclocked K version CPUs consume more power and run hotter, making the case cooling issue worse.  And the K version cooler with heat pipes looks noisier, blocks MB access and case exhaust airflow, and might have a more difficult fan to replace when it dies or goes noisy .  I didn't want these complications at additional cost... it makes no sense to overclock the CPU in a case that has cooling issues.

Prior to purchase, I judged the case cooling to be marginal and made a plan to replace the 92mm PWM top exhaust case fan with a 120mm PWM fan, and to add a 120 mm PWM lower front inlet case fan.  I purchased (2) Noctua NF-S12A-PWM case fans, and a pulled 120mm Dell top case fan with mounting plate off the big auction site just to get the 120mm fan mounting plate that fits the XPS chassis.  The Noctua fans come with everything else you need.

The top case fan mounting plate notes from my auction site purchase:
Dell XPS 8910 8920 Alienware Aurora R5
Top Cooling Case Fan 7M0F5 X64T5
Item# 264605495141
$23
OEM 120mm top fan, bracket p/ns: 07M0F5, 0X64T5, 13P1-4ZN0201
CN-0X64T5-74431-64Q-C02V-AD0
Same as for Aurora R5/6/7 chassis
OEM 120mm fan is 4-pin PWM, 12V, 1.05As-l1600a.jpgs-l1600b.jpg

At idle (more or less), the stock XPS would rev its case fan in response to CPU activity with core temps rising into the 80cs.  This fan revving/noise was annoying, as I expected it to be.

I installed the new fans.  The top exhaust fan swap was plug and play.  I located and drilled/finished (4) 5/32" holes in the chassis front to mount the lower front inlet fan.  The exact right position locates these fan mounting holes equally away from existing holes in the metalwork.  I temporarily removed the HDD cages for access and used a curved hemostat to reach and pull the Noctua rubber pins used to mount the fan.  I also slipped out the ODD and removed the front bezel for access.  I captured ALL metal shavings with blue taped paper towel shielding.  Both new 120mm fans use the included Y-cable to share the 4-pin PWM case fan header on the MB... I made the top exhaust case fan the master PWM fan.

This pic explains PWM (pins 1,2,3,4), non-PWM (pins 1,2,3), and the Y-cable layout:
PWM fan wiring.jpg

I did try removing the 4th pin conductor from the other included Y-cable to trial the fans at their full 1200 RPM, but determined that was unnecessary steady-state fan noise.

When I run the Prime95 torture test with all cores at full load, the new fans rev up a bit and core temps rise to 80-82c.  The fans are relatively quiet by design.

Plan B was to upgrade the stock CPU cooler, but that won't be necessary.

I have not challenged the GPU.  Its fan(s) pull lower case air and exhaust it out its rear dual slot bracket/grill.

The PSU fan pulls outside air through a side grill and exhausts it out its rear grill.

The stock CPU fan just makes a mess of case airflow at the top case exhaust fan.

I'm satisfied after the fan upgrade.  The Noctua fans are very nice and include what you need, so worth the few extra bucks.  Know that a fan with lower static pressure is more suitable for a case fan application that has less restriction than a heat exchanger application.  And will then also run quieter.  And the converse is true... a fan with higher static pressure can better push air through a marginal/restricted case grill, but will be noisier.  So, fan application can be a compromise.  The fans I used suit the application, imo.

Frankly, I would not buy the XPS Tower without being able to upgrade the cooling with more and better fans.  I was going to recommend this system to family members preparing to migrate from Win7 to Win10, but I will not because they cannot fix the cooling issues themselves.

Credit to others here who have shared their similar fan upgrade information:
https://www.dell.com/community/XPS-Desktops/XPS-8930-GPU-and-CPU-Liquid-Cooler-PSU-Case-Swap-Upgrade...

The only other XPS mod I've done is described here:
https://www.dell.com/community/XPS-Desktops/XPS-8930-freezes-for-3-5-seconds/m-p/7502259/highlight/t...

GK

2 Bronze
2 Bronze
4934

Well, I have recently bought a xps 8930 S.E. with those option:

i9 9900k

RTX 2070 super

PSU 850w 

32 gb RAM

And yes, I had overheating issues. There is no airflow in this case. Depending of what

you choose to put inside get ready to do some customization work. You can find some explicit

threads on these forum about what to do.

I should have done more research before buying and knowing what I know now, I won't have

bought this thing. On Dell's website, when you select a i9 9900k in an Aurora system you have

a warning that you must take the water-cooled version chassis. There is no such option for the

XPS line.

So maybe with the i9 9900 non-K things are better and Dell have pretty good prices for such

configurations.

Those XPS 8930 cases are bad for cooling but I guess if you are not gaming,video editing/rendering, 

music/sound rendering, 3d software user, It can be OK.

I took the CPU, the GPU, the ram out of it, and with a new case and new motherboard I've built

a new PC. Now my temp in Celsius are around 28-30 iddle, 40 light workflow (photoshop), rendering

& gaming 60-65. I am happy, but it is not a Dell XPS anymore.

Jno

4906

@jnno 

I can see how your configuration pushed the XPS case to extreme... overclocked CPU, more memory, more GPU, more PSU... these heat sources add up.  Anyone buying an XPS would be wise to keep it modest, including how you intend to use it.  That was my plan and I barely kept to it since the best price include the RTX2060... otherwise I was going for the GTX1660Ti.

Dell needs a more conventional case if they intend to sell power hungry configurations.  They use to put 250W PSUs in cases like the XPS.  Now its 850W and one 92mm case fan in a 120mm opening.  That's just rude.

GK

Anonymous
Not applicable
4880

@GKDesigns   Now its 850W and one 92mm case fan in a 120mm opening. That's just rude.

Perhaps they thought a 92mm exhaust fan would be sufficient since the swing-out PSU contraption blocks most of the air flow

 

4852

@Anonymous 
Perhaps they thought a 92mm exhaust fan would be sufficient since the swing-out PSU contraption blocks most of the air flow 

Point taken... complaining about fan size ignores the surrounding airflow issues, or obstruction thereof.

GK

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