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7970 Fan control (Both fans)

post #1 of 5
Thread Starter 
Hi, The rear fan (furthest away from the video outputs) seems to be running really slowly on my 7970 causing the rear to overheat. I have tried altering the fan speeds on both MSI afterburner and AMD CCC. Sadly it will only alter the fan directly cooling the GPU, any ideas? the card is an XFX 7970 DD
Thankyou
post #2 of 5
Both fans are wired together, so they should be spinning at the same speed. See if there's anything physical (dust in the bearing region), otherwise the fans are faulty and they need to be replaced.
post #3 of 5
Thread Starter 
I have 2 of these cards and on both of them the fans run at different speeds, my other card is fine. i think i remember reading it was one of XFX's sound reduction features although i cant be sure. it may be set on a bios level I don't know
post #4 of 5
If only one of your cards is exhibiting this problem, I'm betting money it's a hardware fault with the fans. Just curious, do you mean your VRM temps are getting really high when you say the rear of the card is overheating? Because I also had an XFX 7970 DD, and my VRM's would reach 93°C+. The way the XFX cooler is designed just doesn't jive well with cooling the VRM's.
post #5 of 5
Thread Starter 
Yeah the XFX fans are horrible, You won't believe the amount of problems ive had with my XFX 7970's. im not sure. I checked the VRM temps and they were not bad but I noticed the rear of the heatsink was really, really hot. Also the fan was barely spinning. Then it would randomly crash, as soon as i noticed the issue i took the card out. I think it is a hardware fault to but the thought was if i can force power into the rear fan it would spin a little faster. I haven't cleaned the fan out yet using compressed air and such but thats never worked for me anyway
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