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Old 06-09-11, 02:40 AM   #1
petrus4
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Join Date: Jun 2011
Posts: 2
Default Requesting assistance re SLI with 2 GTX 480 cards

Greetings.

I have recently become the owner of a computer containing two nVidia GTX 480 video cards.

I have attempted to use both of these cards simultaneously in an SLI configuration, but when adding the Option "SLI" "On" setting in /etc/X11/xorg.conf, I receive a message saying, "Chipset not approved for SLI. No valid SLI configuration found."

The relevant excerpt from /var/log/Xorg.0.log follows:-

(**) Jun 09 16:35:27 NVIDIA(0): NVIDIA SLI auto-select rendering option.
(EE) Jun 09 16:35:28 NVIDIA(0): Failed to find a valid SLI configuration.
(EE) Jun 09 16:35:28 NVIDIA(0): Invalid SLI configuration 1 of 1:
(EE) Jun 09 16:35:28 NVIDIA(0): GPUs:
(EE) Jun 09 16:35:28 NVIDIA(0): 1) NVIDIA GPU at PCI:3:0:0
(EE) Jun 09 16:35:28 NVIDIA(0): 2) NVIDIA GPU at PCI:4:0:0
(EE) Jun 09 16:35:28 NVIDIA(0): Errors:
(EE) Jun 09 16:35:28 NVIDIA(0): - Chipset not approved for SLI
(WW) Jun 09 16:35:28 NVIDIA(0): Failed to find a valid SLI configuration for the NVIDIA
(WW) Jun 09 16:35:28 NVIDIA(0): graphics device PCI:3:0:0. Please see Chapter 24:
(WW) Jun 09 16:35:28 NVIDIA(0): Configuring SLI and Multi-GPU FrameRendering in the README
(WW) Jun 09 16:35:28 NVIDIA(0): for troubleshooting suggestions.
(EE) Jun 09 16:35:28 NVIDIA(0): Only one GPU will be used for this X screen.
(II) Jun 09 16:35:28 NVIDIA(0): NVIDIA GPU GeForce GTX 480 (GF100) at PCI:3:0:0 (GPU-0)
(--) Jun 09 16:35:28 NVIDIA(0): Memory: 1572864 kBytes
(--) Jun 09 16:35:28 NVIDIA(0): VideoBIOS: 70.00.21.00.02

I attempted to investigate the provided troubleshooting web link, but it did not allow me to succeed in getting SLI to function.

I am using FreeBSD/amd64 8.2 RELEASE, and am also using the latest drivers that I have been able to find from nVidia's web site, as of this date, which I believe is the 9th of June, 2011. I can also provide dmesg logs to identify the rest of my hardware, if that proves relevant. I have Intel CPUs, and I believe a fair amount of other Intel hardware, and I think I can remember reading somewhere that that may have been the cause of the issue.

I hope that I will be able to rectify this issue as soon as possible.
Regards,
Petrus
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