9950x with Arctic Liquid Freezer III 360 - Hitting temps in the 80c during gaming.

[Acastus]

Is this normal? I did a stress test on AIDA64 and the CPU hits 95c on full load. It doesn't go higher than that but just wondering if maybe tweaking the AIO tightness to the cpu or something else will help.

Are these temps normal for a 9950x?


My System is:

Ryzen 9 9950x
64gb DDR5 Corsair V 5600mhz c32
RTX 4080
ARCTIC LIQUID FREEZER III HIGH PERFORMANCE
ASRock x870 Riptide wifi
Lian Lii Lancool III Tower
Corsaor 1000w PSU

 

[Acastus]

System Stability Test >>:

Stress CPU, Stress FPU, Stress Cache, Stress SYstem Memory (ALL CHECKED)

Clicked start and left it running for 15 minutes. The CPU hit 95c. It would sometimes go to 96c but never above that.

I've got the OSD on screen now with Youtube playing in the background and Grid Legends downloading from the EA App and the CPU is sitting around the 65c temp mark.

 

[Acastus]

Yes, running stock. I haven't tried what you said. What does it do, is it safe and do I do this in the BIOS?

 

[Acastus]

Something is def not right because when doing nothing it idles at 65c.

 

[Acastus]

I'm running stock. Also, thanks for the replies.

 

[Acastus]

That makes sense. Ok, the paranoia has eased. Thanks for all your replies.

 

[Acastus]

From a physical perspective are the pipes of the rad at the bottom so the pump is getting the water to push through. If not I would give this a try to see if it makes a difference. Also have you applied enough clamping pressure to the cpu screws. When tightening I go in a diagonal and only do a couple of turns then go to the next screw.

Pipes of the rad are at the bottom. I've tried reseating the AIO Pump and the results are always the same. Whether it's lightly tightened or tightened a bit more it the CPU still behaves like this temp wise.

 

[Acastus]

Scenes as he didn't remove the plastic cover on the heatsink!

Since you're speaking from experience, what else have you goofed up when building a PC?

One of the problems with this AIO is only 2 screws as is on leaf spring design, requires a bit of force to get the screw to grip first then all depends how big is your screwdriver I can honestly say I hate this design of mounting, and I do have one. Very easy not tighten enough or to much

That's a problem only if you attach to the motherboard first. I attached the brackets to the pump screws first, tightened and then to the motherboard.

 

[Acastus]

I've managed to get the temps down except (obviously) when the CPU is at full load. I had to reseat/repaste, for a third time, the cpu and most importantly, the AIO needed to be attached tightly to the CPU. I'm idling at 41c, moderate workload takes it to 70c and Unreal Engine work and gaming takes it sometimes to 95c, but never above. I've thrown everything graphics intensive at it and left it running, no crashes and no shutdowns.

One thing I have noticed that has made a considerable difference is the c36 64gb 5600mhz DDR5 ram.

Here's a pic of the setup.

 

[Acastus]

Ok, I will reboot and check the bios for pump speed settings. I hope I can find where it's at. I'll report back in a bit.

 

[Acastus]

@WARburton My god, the fan settings in the bios were set to ultra quiet mode. I've set them all to performance mode based upon CPU temps. if it's above 50c then they go full blast. I'm going to do a few more tests but so far temps are 38c - 41c idle.

Just tested GTA V maxed settings. On this new performance mode, the CPU doesn't hit 80c ever.

Silent Mode in Bios settings for the fans was the enemy here.

 

[Acastus]

I haven't tried any of that. I'm going to monitor the situation now that I've set the fans up correctly in the bios. If I get problems still with super high temps I'll try the solution you posted. And yeah, I'm not a gamer that needs to extract every last fps they can from their setup. I'm more interested in the setup not breaking due to heat problems. The 9950x is not a cheap bit of kit. Yes there's warranty but it's the downtime and the hassle.

 

[Acastus]

so now start retesting and dropping it by 10% at a time and you will find a happy place. i wouldn't think 100% would be needed you could probably drop to 70% and not have a massive temp change.
did you identify what header the pump is set to, this header need's to be set to a constant speed, this will help with idle temps and keeping the coolant cool under low load

The pump and the rad fans are all controlled via one cable. It's the option I went with. Is this wrong. The Arctic LF AIO 360 came with two cables. One cable allows the fans and the pump to be controlled as one and the other cable splits the pump and fan control.

Currently I'm using the single cable plugged into the CPU fan header.

[edit]I'm going to try the 2nd cable. Let's see what happens if I implement your suggestion about the pump.

 

[Acastus]

@WARburton Turns out you were right. I plugged the cable in that has separate connectors for fans/vrm/pump. I set the AIO pump to full speed, the fans to a custom set of speed settings based on cpu temp and the cable (vrm) to full speed also.

idle temps are now between 39c and 42c. Moderate load hits 60c to 70c. Here is the gamechanger. Maxed out cores in a stress test the cpu hits 78c max and doesn't increase. The cooler is doing its duty well. 78c max is very far from how this all started (95c temps ) on moderate load.

Just want to say thanks for taking your time to help. It's appreciated and has actually made a phenomenal difference.