Dell G5 Cooling issues

Ok cool.  So just because the turbo boost is being limited to short bursts it doesn't meant the CPU is being seriously throttled (in the Dell Alienware center its showing the CPU clock  at around 4 GHz (but obviously that may not be accurate).

I'm guessing this type of situation is only a concern if your trying to squeeze max possible performance out of the CPU.

I'm also guessing that a cooler CPU would allow boost to be sustained for longer.

Again I didn't notice any performance while playing but as I said I wasn't running a FPS counter so will do that as well just so I have a full picture.

Thanks for your help on this, while I work in IT may area is more virtualization and enterprise level hardware so I'm not too familiar with trying optimize desktops and limits.

The throttling GHz varies. Power throttle is designed to bring the CPU back down to 65 W total power after 28 seconds of boosting, no matter how cool it runs. 65W is still enough for 2-3 cores to run at (or close to) full power/GHz, and since games usually don't use many cores, it's normal to not notice much of an actual difference in games. If you were to do all-core work like rendering and such, you'd notice this throttling much more.

Adding a better cooler won't help with the turbo/power throttle, since there is a fixed time limit that doesn't care about temperature. The only way to get rid of that is to remove the limit. 

Thermal throttling is the one that cares about temperature, and when that kicks in, it tends to cut your CPU power/frequency way more than power throttle. Power throttle brings it back to 65W and keeps it there. Thermal throttle cuts it down even more until the temperature drops. That will affect your performance in games when it happens, since even 2-3 cores can get too hot with inadequate cooling. The only solutions to this are: better cooling  and optionally a slight undervolt on the CPU. If you look in my FIVR window in the link I posted above, you'll see that I applied a -145mV undervolt on the CPU to keep it even cooler. I've done similar to the GPU in the MSI Afterburner app. This results in slightly less power use and cooler temps overall. My goal was to never hit 70 degrees in 2-3 core load so that the CPU sustains TVB (thermal velocity boost) and thus attains the advertised max speed of 5.2 GHz. For the GPU, my goal was to keep the fans from being too noisy (since I can't upgrade the fans on the card without voiding warranty). I managed to keep it around 65 in games, which is acceptable.

You could spend days tweaking and re-tweaking, but bottom-line: if you're happy with the frames you get in games, that's really all that matters You can run benchmarks upon benchmarks and tweak until you squeeze the last bit of performance to get the pretty numbers in those benchmarks, but if that doesn't translate into much visible improvement in the real-world apps/games you use, then it's all just for the sake of geeking out Which I admit, is the main reason why I spent my time doing all this, lol. I had a laptop for so many years and I missed out on tweaking and changing parts and such, like I used to do back in my younger days of building PCs from scratch. 

But if you got to the sweet spot where you're happy with how it runs, just leave well enough alone and don't spend more time and money

Ok so I think things are looking good as they are, played Fallen Order last night with FPS counter on and consistently got rates of between 90 and 100+ even with power limiting active and temps staying in 70s.

I think I will eventually get the cpu cooler upgrade just to try and keeps temps as low as possible to reduce fan noise and also just for my own experience if upgrading a CPU cooler (I got an surprisingly high level of satisfaction out of just simply upgrading the case fan).

I can now see how chasing low temps and eliminating bottlenecks/limits can be quite the rabbit hole.

Thanks for all your input on this I've learned a lot from this experience.  

Sorry I keep coming back to this 1 thing is niggling me.  

Temps are pretty good once I have CPU fan running at 100% while under heavy load.  However in Alienware Command Center the side fan ((which I assume is the old exhaust fan now positioned at the front of the machine never goes above 50ish % even when I set offset to 100%.  I do hear it spinning up louder when I do set it to full (again temps seem okay and I'm not hutting any thermal limits) just curious.

I made sure to connect the Dell fan to the 3 pin connector on the Noctura extension cable. is this just a bug?

 I did get it to say 100% once when I created a new profile in Command Center but when I brought the offset to 0% the fan turned off but the gauge still set 100% so I think its just a bug.  Is there any good free third party software than con confirm the fan speeds or am I thinking too much about this  (again no thermal limits).

Thanks.

@peter1_979 good question. My AWCC shows the side fan at 29% in idle mode and it goes up to 53% when I set the cooling profile to "high performance" and I hear the fans go louder (the CPU fan goes up to 62%).

I looked in HWInfo, but could not find the CPU and case fans in there, only the GPU fans. I haven't really care to look further than that. As long as the fans spin and the temps stay good, I don't really care what the RPM value is

Alongside everyone else G5 desktop reaching CPU 82C and GPU 74C on many games.

Went with NH-U92, Pair of NF-A9 tye-wrapped together at the front using the spare stand-offs from the cooler, and a single NF-A9 at the rear.

Now getting less than 60C on the CPU and about 45C on the GPU running the same games, with room temp at 21C.

Yes it was £120, but less than an hours work to transform a stressed machine sounding like a jet fighter to one that gently hums under load.

Thanks to everyone else for advice on things they tried.

https://www.youtube.com/watch?v=dfbcD248n4Y&t=6s

Hey I might be a bit late but I have a question regarding your setup, first how much energy can your PSU provide and which fans can u recommend the most? Thanks c: 

Just wanted to throw out my thanks to you berto514. I've had my G5 since May but I unfortunately didn't find this thread until July when the stock cooler was finally driving me nuts. Followed your recommendations and was even able to turn the fan speeds up more in AWCC, getting better temps and still quieter than the stock parts. Thanks for your patience and explanations with everyone on this forum

@king3064 sorry for the late answer. I have a 500W PSU. More than enough for my i9-10900F and RTX3070. I have 6 fans total: a Noctua NH-U9S CPU cooler with two 92mm fans, another 92mm Noctua NF-A9 for exhaust, a 120mm Noctua NF-F12 for upper intake (where the HDD bay used to be), one of the 80mm Dell fans for lower front intake and a tiny 40mm fan on the VRM heatsink. Fans consume very little power (2-3W, so these don't add up to much).

Hi! Thanks for sharing your configuration. I also own a Dell g5 5000 with i9 10900f and I'm playing with throttlestop to maximize its performance. I have a question about the c state settings as the default checks all the c1 and c3 demotion/undemotion boxes. What are benefits of unchecking these c state options? Thanks!!

Hi. Last I checked, not even the authors of Throttlestop were completely sure what those parameters did exactly. I researched their forum and all I could find were best guess recommendations, so that's what I applied on my machine:

Request C7, unchecked all the demotions and cheked all the undemotions.

To be honest, I don't see any difference, so I have no idea if those actually do anything meaningful.

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Hi

To pay so much money for a "gaming computer" , prerebuild one, and after that to invest more time and money to reinvent the system is a bit of a big slap for Dell. 

I didn't realised at the beginning the issue, and when I asked Dell to fix it, they told me that "the system is working as designed ', and "The CPU's TJ max is 100 °C, which means that the system would operate"

If I want lower temperatures, I should buy a "the higher wattage heatsink " from them. 

Super poor customer service and warranty solving issues.