GTX275 is running as PCI-E x8

zuffy

Senior member
Feb 28, 2000
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I can't believe when I noticed my EVGA GTX275 is running as x8 instead of x16 even though that is the only PCI-E device. I knew something was not right. It has to be the video card or the motherboard. After plugging the GTX275 in my backup PC, it detected at x2. Pop in 2 other video cards in my EVGA motheboard and they were detected fine at x16. I already got the authorization from EVGA for the RMA.

Anyone else had a similar problem?
 

vj8usa

Senior member
Dec 19, 2005
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I knew something was not right.

I'm curious, how could you even tell that something wasn't right? From what I've read, a card of that level would be virtually identical performance-wise at 8x vs. 16x.
 

zuffy

Senior member
Feb 28, 2000
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I didn't mean it by performance wise. I was referring to CPU-Z and Nvidia system information reporting the video card establishing @ x8 only.
 

betasub

Platinum Member
Mar 22, 2006
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So you knew something was not right when CPU-z told you something was not right?
 

zuffy

Senior member
Feb 28, 2000
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So you knew something was not right when CPU-z told you something was not right?

I have 2 software that confirmed the x8 and the value changed to x16 when I swap in 2 different video cards. If you don't trust that, what else would you to validate? That was enough for EVGA tech support.
 

zuffy

Senior member
Feb 28, 2000
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Try other slots on your board

1) I don't have room in the case to try the other slots.
2) The GTX275 has the same issue, actually worse, in my backup computer
3) I put in 2 other video cards in the main system and it detected as x16 fine
4) No damage or dirt in any of the contact pins in the GTX275
 

yh125d

Diamond Member
Dec 23, 2006
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What do you ave that is blocking off your two other slots? :|
 

zuffy

Senior member
Feb 28, 2000
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The hard drives and the cabling. The GTX275 is quite long. I have the Antec 900 case.
 

zuffy

Senior member
Feb 28, 2000
684
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71
Latest BIOS and first PCI-E slot at the top. It's not the motheboard, I tried 2 other video cards already with no problem.
 

zuffy

Senior member
Feb 28, 2000
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Got my replacement video card. It's detected as x16 now. It's all good. :thumbsup:
 

CurseTheSky

Diamond Member
Oct 21, 2006
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what could be wrong with a video card to make it do that?

Faulty PCI-E connector pins maybe? Aren't x8 slots about 3/4ths and long as x16? So if you covered up or disconnected the gold contacts beyond those that would fit in the x8 slot, it wouldn't work in x16 mode.

Just a guess.