- Jan 8, 2017
- 45
- 0
- 18,545
Recently, my CPU fan has been behaving strangely. It never seems to spin over 3500RPM (its the stock FX-8350 fan), even when the CPU hits 65+ degrees celcius.
however, the fan did not used to behave like this, in the past its been spinning at 4000-6000RPM.
I have fiddled around with the BIOS to set fan settings, and put the CPU fan on 'turbo' mode (which made no difference).
However, even more strangely, whilst doing troubleshooting i noticed that if i turned down the speed of the 20cm fan on the top of my case, the CPU fan RPM increased above 3500, and if i turned all of the fans to their lowest settings, the CPU fan increased to around 5500RPM, the temperatures did not change much though. (the case fans are on a fan controller)
Airflow in the system is very good (4 fans, 2 intake, 2 exhaust)
I have also noticed that the CPU does not seem to be thermal throttling, even at 65+c no throttling occurs, i have not changed any options in the BIOS to affect this.
There are no issues with the PSU, as its quite new, and i have had no issues with other components that may lead me to believe that it PSU is a problem.
System:
CPU: FX-8350 @stock speeds
PSU XFX TS750W
MOBO: Asus m5a78l-m/usb3
GPU: AMD R9 380 4GB
RAM: 24GB
CASE: NZXT Phantom Full Tower
any help would be appreciated, my primary idea currently is to replace the stock cooler with an AIO.
however, the fan did not used to behave like this, in the past its been spinning at 4000-6000RPM.
I have fiddled around with the BIOS to set fan settings, and put the CPU fan on 'turbo' mode (which made no difference).
However, even more strangely, whilst doing troubleshooting i noticed that if i turned down the speed of the 20cm fan on the top of my case, the CPU fan RPM increased above 3500, and if i turned all of the fans to their lowest settings, the CPU fan increased to around 5500RPM, the temperatures did not change much though. (the case fans are on a fan controller)
Airflow in the system is very good (4 fans, 2 intake, 2 exhaust)
I have also noticed that the CPU does not seem to be thermal throttling, even at 65+c no throttling occurs, i have not changed any options in the BIOS to affect this.
There are no issues with the PSU, as its quite new, and i have had no issues with other components that may lead me to believe that it PSU is a problem.
System:
CPU: FX-8350 @stock speeds
PSU XFX TS750W
MOBO: Asus m5a78l-m/usb3
GPU: AMD R9 380 4GB
RAM: 24GB
CASE: NZXT Phantom Full Tower
any help would be appreciated, my primary idea currently is to replace the stock cooler with an AIO.
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