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GPU fan stops spinning, first PC build

By Sporked
Mar 20, 2012
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  1. Hi there, I'm in the middle of my first PC build and I've come across a problem that I need some help with.

    My GPU appears to be working fine until I insert it into the slot on my motherboard the fan instantly stops spinning. The rest of the motherboard doesn't appear to hinder at all.

    CPU: Intel i5 2600K
    Motherboard: ASUS P8Z68-VLE
    GPU: Gigabyte ATI HD6770
    PSU: SilverStone 750W SST-ST75F-P

    Any help would be greatly appreciated. Let me know if there is any more information needed to access the problem.
     
  2. mailpup

    mailpup TS Special Forces Posts: 8,456   +228

    You shouldn't be installing a graphics card (or any card) while the PC is still on. It's risky to the heath of your components. The graphics card needs to be connected to external power before it will work anyway. Connect it while the PC is off, then power it up.
     
  3. Sporked

    Sporked TS Rookie Topic Starter

    This is what I've been doing. I have the motherboard set up on a grounded surface with the CPU, heatsink, GPU and RAM connected. Whenever I tried starting the GPU while not connected to the motherboard, the fan was working fine. But when I start the system with the GPU connected, the fan starts for about half a second and then stops.
     
  4. mailpup

    mailpup TS Special Forces Posts: 8,456   +228

    Just to clarify, is the 6 pin PCI-E connector from the power supply plugged into the grahics card?
     
  5. Sporked

    Sporked TS Rookie Topic Starter

    Yes, it is.
     
  6. Buckshot420

    Buckshot420 TS Enthusiast Posts: 467

    What PSU are you using?
     
  7. Sporked

    Sporked TS Rookie Topic Starter

    Forgot to add that. Sorry.

    PSU: SilverStone 750W SST-ST75F-P
     
  8. Buckshot420

    Buckshot420 TS Enthusiast Posts: 467

    Have you tried the GPU in a different pci-e slot? Can you boot your OS with the GPU taken out?
     
  9. Sporked

    Sporked TS Rookie Topic Starter

    Unfortunately I don't have a spare GPU to test.

    I can not boot up my OS at all, GPU in or out.
     
  10. Seraphim401

    Seraphim401 TS Member Posts: 33

    I think that's just the power management kicking in.
    It plays games fine doesn't it?
     
  11. Sporked

    Sporked TS Rookie Topic Starter

    I can't get anything to boot up. So I can't use it at all the way it is now. I'm at a dead end.
     
     
  12. slh28

    slh28 TechSpot Paladin Posts: 1,925   +170

    What do you mean by trying to start the GPU without connecting it to the motherboard?

    If your OS doesn't even boot without the GPU then it isn't a GPU issue. You would have to do a bit more testing to see what component is failing.
     


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