Insufficient PCI-E link width

[munsen]

OK, so I'm having troubles wiiith SLI on my new P5ND2-SLI motherboard. I have two identical 7800GTX cards.

lspci reports

01:00.0 VGA compatible controller: nVidia Corporation GeForce 7800 GTX (rev a1)
02:00.0 VGA compatible controller: nVidia Corporation GeForce 7800 GTX (rev a1)

lspci -t

-[0000:00]-+-00.0
+-00.1
+-00.2
+-00.3
+-00.4
+-01.0
+-01.1
+-01.2
+-01.3
+-01.4
+-01.5
+-01.6
+-02.0-[0000:01]----00.0
+-06.0-[0000:02]----00.0
+-09.0
+-0a.0
+-0a.1
+-0b.0
+-0b.1
+-0b.2
+-0f.0
+-10.0
+-11.0
\-12.0-[0000:03]----08.0

grep WW /var/log/Xorg.0.log

(WW) NVIDIA(0): Failed to initialize SLI! Reason: Insufficient PCI-E link
(WW) NVIDIA(0): width. Only one GPU will be used for this X screen.
(WW) NVIDIA(0): Please see the SLI Appendix in the README for
(WW) NVIDIA(0): troubleshooting suggestions

The readme doesn't say anything about this error. If you need more information just ask. I'm at my wit's end here.

[edit] I forgot to mention I'm using the latest nvidia driver

[netllama]

Is the 'Single/Dual card' setup for Single or Dual videocards?

Please generate and post an nvidia-bug-report.log.

Thanks,
Lonni

[munsen]

I'm not sure what you mean by single/dual card setup. I didn't see anything like that in my bios but it may be something I overlooked.

I tried to attach a bug report but I get this:
"Your file of 128.2 KB bytes exceeds the forum's limit of 100.0 KB for this filetype."

I uploaded it to my website

http://www.ghetto-technology.net/nvidia-bug-report.log

[netllama]

On your motherboard (or at least the picture of your motherboard on Asus's website), there is a card that controls whether you are trying to drive two videocards for SLI, or one videocard. Typically, this card sets the PCI-E lane width between 16x and some lower number.

Thanks,
Lonni

[munsen]

Now I feel a bit stupid hehe. That was the problem. At some point when I was building this box I completely overlooked that card. Now it works. Thanks 100,000,000 times over.