Z97 Gaming AC - PCIE no longer detected

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Andrew657

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Jan 4, 2015
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Hi

When I first booted the machine all was well however when I came to reboot my machine for the first time it no longer sees I have a GPU and so switched to the Intel onboard 4600.

At first I assumed the GPU had come lose or some BIOS setting needed changing. BIOS is set to use PEG (PCI-E Graphics card device) so i reseated the card and rebooted. This didn't work.

I reset the BIOS CMOS and that fixed the issue, my machine booted using the graphics card again however as soon I rebooted windows again it lost the card switching back to the onboard.

According to the BIOS the PCI-E slot is empty. I swapped the card out for an older ATI 7870 but had the same problem. PCI-E slot is empty unless I clear the CMOS (I made no changes in the BIOS).

At this point it sounds like some kind of software issue I have updated my BIOS to the latest version (1.5) but that hasn't fixed the issue. Whenever I shutdown or restart it will lose sight of my card unless I clear the CMOS or power down at the wall.

SPEC:
Intel 4790k
Nvidia 970 GTX
MSI Z97i Gaming AC mini-itx
8GB 1866mhz Kingston
Corsair 600w PSU
 
TZBC

TZBC

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Nov 6, 2014
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have you update to the latest graphics card drivers?
Try clean the pins of graphics card and PCIE slot?
 
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Andrew657

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Hey, Yes I'm running the latest nvidia drivers. Regardless if i can boot into windows with it detecting the card i can run it for hours on end without issue and drivers would not cause the bios to say the slot is empty so i don't think it's a driver issue.

I also don't think it would be an issue with dirt on the PCIE connecters on the card as using another card i get the same issue.

I have no idea how I would go about cleaning the PCIE connector on the board but again would be odd that a CMOS reset would fix a dirt issue.

however i noticed on the board compatibility page it doesn't show i7 4790k being a supported CPU, but does show the GTX 970 so maybe its a BIOS issue...  :cry:

I have returned the board and asked for a replacement will update once i get my new board. :smile:
 
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