Processor fan not spinning?

[fireshot91]

My PC is a custom built rig that I got for Christmas of '07. Everything was working. A couple of months ago, I noticed my processor fan isn't working. I took nothing of it and here I am getting worried. Everything's hooked up right, the fan does spin when I spin it. It works when the computer is off for like 1hr, and then I turn the computer on, that is when it works and it continues to work until I turn it off again.


The only reason I care is because I bought Portal, and that is taking 100% of my CPU power. (2.2Ghz Core 2 Duo E4500). It runs for like 2 minutes, and then my computer turns off because (I'm guessing here) my processor is getting to hot.


Anything I can do or something?

[Dmac77]

My PC is a custom built rig that I got for Christmas of '07. Everything was working. A couple of months ago, I noticed my processor fan isn't working. I took nothing of it and here I am getting worried. Everything's hooked up right, the fan does spin when I spin it. It works when the computer is off for like 1hr, and then I turn the computer on, that is when it works and it continues to work until I turn it off again.


The only reason I care is because I bought Portal, and that is taking 100% of my CPU power. (2.2Ghz Core 2 Duo E4500). It runs for like 2 minutes, and then my computer turns off because (I'm guessing here) my processor is getting to hot.


Anything I can do or something?

There might be a short in the fan's wiring. I would suggest getting a new fan.

Don

[fireshot91]

Forgot to add this- The fan does spin like 2 times right when you turn the computer on.

[Dmac77]

Forgot to add this- The fan does spin like 2 times right when you turn the computer on.

So the fan won't work once the OS boots. But it works the rest of the time? Am I understanding you correctly?

Don

[fireshot91]

No, like right when I'm pressing the power button to turn it on, it spins like twice, and then it stops. This is all before my Hard Drives/Ram options are even listed.

[Dmac77]

No, like right when I'm pressing the power button to turn it on, it spins like twice, and then it stops. This is all before my Hard Drives/Ram options are even listed.

I think a short in the wiring is the most probable cause. I would get a new processor fan. If that doesn't work, I'm stumped.

Don

[toolbox]

Some motherboards only engage the fan when the cpu gets to hot, there thermally controlled

[fireshot91]

But the fan doesn't even come on when the processor gets hot. The PC freezes and turns off when the processor is at 100% power. The fan never comes on.

[toolbox]

Ok as DMAC77 has suggested might be worth test a new fan in the unit.

[leishan]

I agree that you should try a new fan.

[Rodimus Prime]

Test a new fan. It is a cheap test.

Also check the bios and make sure you do not have some quite mode running or some setting like that.