Closed PSU FAN NOT WORKING / SPINNING Tags: Power Supplies Fan Components Last response: December 10, 2012 11:25 AM in Components Share bgen December 9, 2012 7:14:11 PM Hi . I just noticed today my PSU fan is not working / spinning and i got worried. Why could that happen ? Besides from factory issues which i cant control or produce. IT is really concerning since for the past 3 days my pc restarts or shuts down out of nowhere the first time of the day i turn it on. (And then it ill just work fine till the next day. ) Could that be related ? Thanks in advance. I Just built this computer 2 weeks ago. PSU - Corsair AX 850 profesional series Gold certificate. More about : psu fan working spinning Best solution ko888 a c 1218 ) Power supply December 9, 2012 10:22:56 PM It seems to be operating exactly as it was designed to operate. The Corsair AX850 will operate in fanless mode (i.e. 0 RPM) until you reach 20% load (170 Watts) on the PSU then the fan will kick in. From 170 Watts to 425 Watts the PSU fan will operate in low RPM mode. Above 425 Watts the fan speed will ramp up exponentially. Share bgen December 10, 2012 11:22:31 AM Best answer selected by bgen. Score 0 Can't find your answer ? Ask ! Publish Related resources SolvedPsu fan isn't spinning?!?! Forum SolvedRaidmax Rx-730 fan not spinning. Also Please suggest me a new PSU for my new RIG. Forum SolvedCPU and PSU fan spinning for split second Forum SolvedPSU fan not spinning new build. Forum SolvedHow Do I Know If My Video Card Isn't Working? The Fan Isn't Spinning. Forum SolvedPSU Fan Spinning more in H440? Forum SolvedPSU Fan Not Spinning Forum SolvedPSU fan not spinning Forum SolvedPSU fan not spinning? No boot? Forum PSU Fan Not Spinning Forum My PSU's fan is not spinning Forum SolvedPSU fan isn't spinning Forum PSU Fan Not Spinning Forum PSU Fan not spinning Forum SolvedWill fans directly connected to PSU continue spinning after computer shutdown? Forum SolvedPSU makes noise and CPU fan stops spinning when system under heavy load Forum Help my PSU bottom fan is not spinning Forum Is my psu corsair gs800 broken? Fan not spinning while playing games Forum SolvedMy PSU Fan Is Spinning Really Really Loudly Forum PSU fan not spinning and auto shutting down! Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !