The fans on your PC started spinning once you powered it off.

F5F Stay Refreshed Hardware Desktop The fans on your PC started spinning once you powered it off.

Dj_Nikita
Member

10-05-2025, 01:07 AM

yesterday i powered off my pc and went to sleep, then woke up in the morning finding all fans spinning even though the machine was off. i turned it back on and noticed every fan—including the gpu and cpu—was spinning at full speed. after shutting it down again, i flipped the psu power switch and it stopped working. when i turned it off once more to test, the issue returned. could you help me figure out if my psu is faulty or if there’s another cause? right now the pc seems to be functioning normally, but i want to confirm everything is okay. p.s. all case fans are connected directly to the psu. edited may 21, 2022 by Patrix.PX

Dj_Nikita

10-05-2025, 01:07 AM #1

Okunino
Posting Freak

845

10-06-2025, 02:00 AM

It seems your power supply unit isn't shutting down properly. This might be due to the PSU or a mainboard issue.

Okunino

10-06-2025, 02:00 AM #2

It seems your power supply unit isn't shutting down properly. This might be due to the PSU or a mainboard issue.

MrCupquake
Member

229

10-06-2025, 02:21 AM

Testing with a different PSU, thank you

MrCupquake

10-06-2025, 02:21 AM #3

Testing with a different PSU, thank you

Queffect
Member

219

10-07-2025, 02:56 AM

Your PSU is working properly. It doesn't manage fan control; the motherboard handles fans except for the GPU, which manages its own. Which motherboard is this? Is there a BIOS setting for deep sleep?

Queffect

10-07-2025, 02:56 AM #4

Your PSU is working properly. It doesn't manage fan control; the motherboard handles fans except for the GPU, which manages its own. Which motherboard is this? Is there a BIOS setting for deep sleep?

NinjagobobMC
Member

10-07-2025, 05:41 PM

It's an AsRock 450mm HDV R4.0 model.

NinjagobobMC

10-07-2025, 05:41 PM #5

It's an AsRock 450mm HDV R4.0 model.

LupusGladiator
Member

183

10-09-2025, 04:32 PM

I checked the bios and there isn't that choice available.

LupusGladiator

10-09-2025, 04:32 PM #6

I checked the bios and there isn't that choice available.

marre37
Member

10-15-2025, 04:47 PM

Navigate to Advanced settings, then select Chipset Configuration. This location appears correctly on my ASRock board.

marre37

10-15-2025, 04:47 PM #7

Navigate to Advanced settings, then select Chipset Configuration. This location appears correctly on my ASRock board.