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5900x overheating due wrong temperature reading.

Zantomaku
By Zantomaku
in Cooling
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Hello. I have a 5900x and mobo Asus B550-F cooled by Arctic Liquid Freezer II 360 in a Phankeks P500A case.  I found an issue where my case and CPU fan just don't spin up according to the curve I set in BIOS. Long troubleshooting helped to find a possible reason: the CPU sensor that is being used to monitor temperatures isn't quite correctly show tempeartures under load. Because when I move around fan curve slider in the BIOS I can see that fans speed up. But they are not speeding up during games or synthetic benchmarks and just stay at idle. I tried to look what's wrong in HWINFO64 but all temperature sensor were showing correct temps. Then I went to AIDA64 and found that AIDA's "CPU" sensor shows wrong reading like it will never show more than 55C on CPU while HWINFO shows 65-67C on all CPU sensor. Because of this reason my PC is getting pretty hot during games because intake fans won't spin fast enough to provide good airflow. 

In Q-FAN settings I can only select: "CPU", "Motherboard" and "T-sensor". I tried T-sensor but it does have the same issues. What do I do?

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Solution: Set your fan speed to a set percentage.

Because I hate the sound of my PC fans ramping up+down I have them set to 65% and it doesn't ever throttle, might as well do the same if your thermal sensors are messed up.

My rig:

CPU: Ryzen 7 5800x

MB: Gigabyte B450 I Aorus Pro WiFi

RAM: Kingston Fury Beast RGB 32GB (2x16GB) 3600mhz CL16 (1-to-1 Infinity Fabric enabled)

GPU: Gigabyte RTX 2080 Super

*bought for $200 CAD off a friend who needed an RTX 3080, price was my reward.

CASE: InWinn A1 Plus in White with included 600w gold sfx PSU and included custom length cables

DISPLAY: 3x 20" AOC 1080p 60hz 4ms ,  32" RCA 1080p/60hz TV mounted above, all on a single arm.

 

Storage: C : 1TB WD Blue NVMe      D : 2TB Barracuda      E: 240GB Kingston V300 (scratch drive)

NAS: 240GB Kingston A400 + 6x 10+ year old 700GB Barracuda drives in my old FX8350+8GB DDR3 system

 

Logitech G15 1st Gen + Logitech G602 Wireless

Steam Controller +  Elite Series 2 controller + Logitech G29 Racing Wheel + Wingman Extreme Digital 3D Flight Stick

Sennheiser HD 4.40 Headphones + Pixel Buds 2 + Logitech Z213 2.1 Speakers

 

My Girlfriends Weeb-Ass Rig:

Razer Blade Pro 17 2020

10th Gen i7 10875H 8c/16t @5.1ghz 

17.3" 1080p 300Hz 100% sRGB, factory calibrated, 6mm bezel

RTX 2070 Max-Q 8GB

512GB generic NVMe

16GB (2x8GB) DDR4 3200Mhz

Wireless-AX201 (802.11a/b/g/n/ac/ax), Bluetooth® 5.1, 2.5Gbit Ethernet

70.5 Whr Battery

Razer Huntsman Quartz, Razer Balistic Quartz, Razer Kraken Quartz Kitty Heaphones

*deep breath*

Razer Raptor 27" monitor, IT'S BEAUTIFUL.

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Might just read different sensors.. Dosent matter actually. Just set a fan curve that is less agressive and with a higher min. fan speed. 65-67C if under load isn't hot at all.

Gaming PC:

CPU: Ryzen 5800X3D | Motherboard: Gigabyte B550 Elite V2 | RAM: Crucial 2x16gb, 3200  JEDEC. | PSU: EVGA SuperNova 750 G3 | Monitor: LG 27GL850-B , Samsung C27HG70 | 
GPU: Asus Prime RTX 5070ti OC| Sound: Odac + Fiio E09K | Case: Fractal Design R6 TG Blackout |Storage: Kingston Renegade 2TB and Corsair MP510 960gb | Cooling: CPU: Alphacool ST30 420mm rad, Alphacool CPU and GPU Core LT and Core blocks, D5 pump and res combo 

 

Linux PC:

CPU: Ryzen 7700| Motherboard: Asus A620M-CSM | RAM: Crucial Pro 2x48gb, 5600  JEDEC. | PSU: Corsair CX750 | Monitor: LG 27GL850-B , Samsung C27HG70 | 
GPU: MSI Gaming X RTX 3090 | Case: Lian Li Dan Cases A3-mATX black |Storage: SN7100 2TB + Samsung 860 EVO 512gb | Cooling: CPU: Thermalright Peerless Assassin Mini Fan(s): Noctua 1x NF-A14x25 Chromax

 

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  • Author

So my CPU sensor that motheboard uses for some reasons is caped at 55*C. 

If I set my curve between 40*C and 55*C it will cause my fans to speed up for light loads like opening browser, watching youtube etc etc, because during these temps CPU can easy reach 55*C

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58 minutes ago, Zantomaku said:

So my CPU sensor that motheboard uses for some reasons is caped at 55*C. 

If I set my curve between 40*C and 55*C it will cause my fans to speed up for light loads like opening browser, watching youtube etc etc, because during these temps CPU can easy reach 55*C

So?.. I'm sorry I dont' understand what the problem is.. What's your max load temps? If you run Aida for example?

Gaming PC:

CPU: Ryzen 5800X3D | Motherboard: Gigabyte B550 Elite V2 | RAM: Crucial 2x16gb, 3200  JEDEC. | PSU: EVGA SuperNova 750 G3 | Monitor: LG 27GL850-B , Samsung C27HG70 | 
GPU: Asus Prime RTX 5070ti OC| Sound: Odac + Fiio E09K | Case: Fractal Design R6 TG Blackout |Storage: Kingston Renegade 2TB and Corsair MP510 960gb | Cooling: CPU: Alphacool ST30 420mm rad, Alphacool CPU and GPU Core LT and Core blocks, D5 pump and res combo 

 

Linux PC:

CPU: Ryzen 7700| Motherboard: Asus A620M-CSM | RAM: Crucial Pro 2x48gb, 5600  JEDEC. | PSU: Corsair CX750 | Monitor: LG 27GL850-B , Samsung C27HG70 | 
GPU: MSI Gaming X RTX 3090 | Case: Lian Li Dan Cases A3-mATX black |Storage: SN7100 2TB + Samsung 860 EVO 512gb | Cooling: CPU: Thermalright Peerless Assassin Mini Fan(s): Noctua 1x NF-A14x25 Chromax

 

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