all fans are spinning after shutdown

[piyush2601]

my pc's all fans are spinning after shutdown (cpu fan, psu fan, cabinet fan )
help me what to do
my specs are:
intel core2duo e7500
2x2 gb ddr3 ram
ecs g41m7 1t mobo
cooler master 500 watt psu
nvidia gtx 660
help pls

 

[piyush2601]

Really? None of those should have anything to do with the power or system configuration. Try uninstalling them one at a time followed by a shut down to see if any of them is the culprit for some weird reason. You might need to shut down, reboot and shut down again between removals to get an accurate depiction of whether or not a particular title is involved or not. I'm leaning towards it being a coincidence but it's worth trying. We're these all installed before prior to reinstalling windows.

Ok by tomorrow i will let you know because here in india its12:58 am
One thing when i reinstalled windows my nvidia driver already installed how it is possible i mean we need to install driver separately correct me if i am wrong

 

[Darkbreeze]

Just curious, don't take offense, but where are you going with this? Powering on hasn't been the issue. It's when he powers off that the problem occurs. I can't foresee how it's related aside from also trying to then power off to see if they still stay spinning with all the hardware disconnected.

 

[piyush2601]

Just curious, don't take offense, but where are you going with this? Powering on hasn't been the issue. It's when he powers off that the problem occurs. I can't foresee how it's related aside from also trying to then power off to see if they still stay spinning with all the hardware disconnected.

in installed list nvidia is not listed but nvidia driver is running i see a option when i right click on desktop

 

[Darkbreeze]

No, I was talking about the comment made by jonzoo. Not sure if that was a troll comment if he actually had some reason for making the suggestion.

 

[jonzoo]

It could be a power supply issue, I had a similar problem with a corsair power CX series 500w When I would turn the computer off the fans and all 12v would stay on. I found out that the psu itself turned on without being connected to anything! Literally out of the computer case and it still turned on by itself. Some sort of 12v leakage on the rail...

 

[Darkbreeze]

Well, it could clearly be a PSU issue, but since it doesn't do it in safe mode it certainly makes it less likely to be hardware related. PSU testing is the first thing I suggested.

 

[jonzoo]

I see, maybe he needs to play with the power down settings.

 

[Darkbreeze]

I don't know, I'm thinking the fact that it didn't do it in Safe mode was because there were minimal drivers loaded, thus little demand on the PSU. I really think it's highly likely to be the PSU.

piyush2601, what is the model number of your cooler master PSU?

 

[piyush2601]

I don't know, I'm thinking the fact that it didn't do it in Safe mode was because there were minimal drivers loaded, thus little demand on the PSU. I really think it's highly likely to be the PSU.

piyush2601, what is the model number of your cooler master PSU?

model no is Cooler Master Power Supply B500 500 Watts from here i got my psu http://www.flipkart.com/cooler-master-power-supply-b500-500-watts-psu/p/itmefud2jddauhgz?pid=PSUEYTXM8KFBUREZ
and my issue is solved after after removing graphic card and its driver then i re installed graphic card and and its driver to latest one my graphic card was creating issue now my pc is working normal
thank you guys for your time