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Old 07-14-06, 11:22 AM   #7
zander
NVIDIA Corporation
 
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Join Date: Aug 2002
Posts: 3,740
Default Re: RHEL4, 7800GTX, SLI (only one GPU detected)

Judging from these log file excerpts, it looks as if the secondary card wasn't configured properly by the SBIOS:
ACPI: PCI interrupt 0000:81:00.0[A] -> GSI 43 (level, low) -> IRQ 233
(...)
PCI: Cannot allocate resource region 0 of device 0000:81:00.0
PCI: Cannot allocate resource region 1 of device 0000:81:00.0
PCI: Cannot allocate resource region 3 of device 0000:81:00.0
PCI: Cannot allocate resource region 5 of device 0000:81:00.0
(...)
PCI: Failed to allocate mem resource #0:1000000@280000000 for 0000:81:00.0
PCI: Failed to allocate mem resource #1:10000000@280000000 for 0000:81:00.0
PCI: Failed to allocate mem resource #3:1000000@280000000 for 0000:81:00.0
(...)
PCI: Device 0000:81:00.0 not available because of resource collisions
NVRM: pci_enable_device failed, aborting
nvidia: probe of 0000:81:00.0 failed with error -1
NVRM: The NVIDIA probe routine failed for 1 device(s).
This can also be seen here:
Bus 129, device 0, function 0:
Class 0300: PCI device 10de:0091 (rev 161).
IRQ 233.
Non-prefetchable 32 bit memory at 0x280000000 [0xbfdfffff].
Prefetchable 64 bit memory at 0x280000000 [0xdfefffff].
Non-prefetchable 64 bit memory at 0x280000000 [0xbfdfffff].
I/O at 0x0 [0x7f].
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