GPU Fan Won't Turn On

[BreakDOWN]

I was wondering why my GPU is always hot, the GPU fan won't turn on. I've got a Sapphire HD 4850. Help please?

 

[shovenose]

it could have failed

 

[sabot00]

If the fan has stopped spinning then the fan is broken, if the card is still under warranty I would get either an exchange or refund.

If not you could either replace the entire cooler with something like this:
http://www.amazon.com/Scythe-MUSASHI-Copper-Heatpipe-Cooler/dp/B001EM8PDW

Or just add a PCI slot cooler:
http://www.newegg.com/Product/Product.aspx?Item=N82E16835888112&cm_re=pci_slot_cooler-_-35-888-112-_-Product
or http://www.newegg.com/Product/Product.aspx?Item=N82E16811995027&cm_re=pci_slot_cooler-_-11-995-027-_-Product

Depending on the size of the PCI slot cooler it may or may not cooler the 4850 sufficiently, though a respectable sized one (like the first) should be plenty, while the Lian-Li one would definitely be good.

 

[BreakDOWN]

After I disassembled my hardware just this afternoon (dust everything out), I reassembled everything and the fan turned on then back off after booting. That was the 1st time in a long time the fan turned on.

If it's completely broken, sure I'll order those parts, but it's just weird how it turned on then turned back off.

 

[sabot00]

The dust could have been clogging the fan.

 

[BreakDOWN]

I dusted everything and it's clean, but it still won't turn on. Oh well, maybe it really is just broken. Thanks anyways.

 

[BreakDOWN]

Best answer selected by BreakDOWN.