Problem with motherboard?

yanielliot

yanielliot

yanielliot

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Joined
22 Dec 2011
Posts
55
So I've just done a complete tear down and rebuild of my pc in order to clean and install a H100 cooler. Booted fine but I was getting no signal from the gpu, switched to the output from the motherboard and went to device manager, only display adapter is a "Standard VGA Graphics Adapter"?

I've done the following:

  • Stripped out all non-essential parts
  • Re-installed the gpu (several times, checking properly seated and powered)
  • Uninstalled drivers and GPU, ccleaned, rebooted, reinstall drivers (tried both current and beta) then GPU
  • Couple of different cables to monitor
  • Using the other PCI slot
  • Using an old gpu in both PCI slots
  • Confirmed BIOS is set to use PCI
  • Tested both old and current GPUs on another mobo with same psu (both recognised first time, good video output)
  • Cleared Cmos (via jumper and battery removal)

Both GPU's have power, fans spin but no video output or system recognition. Please tell me I've missed something simple? As both cards work in another system I can only think I've somehow damaged the motherboard or PCI slots?
 
Last edited:
wazza300 said:
tested with onboard graphics just to see if that's working?
Click to expand...

If I plug the monitor into the motherboard I get video and can load into windows without issue, I assume that's using the onboard graphics? That's how I checked the device manager and saw that my 7970 wasn't showing up.
 
yh sorry

tried a longer cmos clear? sometimes it needs 30minutes

cleaned the gold contacts on the graphic card?
 
Gave it over an hour, just in case, cards still not being detected (but they are now nice and clean!). Any other ideas? I think the problem has to be the motherboard as I've tested all other parts with my old Core2Duo CPU/Mobo without problem and if the 2500K was the culprit surely it wouldn't load windows.
 
Yh it seems its not detecting the pcie slots,I know on gigabyte there's a switch that automatically detects onboard or graphic card and some have rma'd due to the switch failing,Idk if the same has happened here

You could try booting from onboard graphics and in BIOS setting peg or pci-e as first display,save then install your graphic card and bootup
 
I saw this mentioned on a couple of other forums and set the Initiate Graphic Adapter setting in the BIOS to PCIE/PCI (other options being iGPU, PCI/iGPU and PCI/PCIE). Don't appear to be able to disable the iGPU completely though as some suggested.
 
Have you removed the gpu, 24, cpu power cables from both ends(if modular) checked pins and reseated?
Also check your ram is seated correctly.
 
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