Go Back   nV News Forums > Linux Support Forums > NVIDIA Linux

Newegg Daily Deals

Reply
 
Thread Tools
Old 07-14-06, 07:53 AM   #1
DavidGregory
Registered User
 
Join Date: Jul 2006
Posts: 7
Default RHEL4, 7800GTX, SLI (only one GPU detected)

I am trying to enable SLI on a RHEL4, AMD64 machine. Following the guidelines in the readme file, it appears that there are no issues.

[root@dgregorylx log]# /sbin/lspci |grep -i VGA
pcilib: Resource 0 in /sys/bus/pci/devices/0000:81:00.0/resource has a 64-bit address, ignoring
pcilib: Resource 1 in /sys/bus/pci/devices/0000:81:00.0/resource has a 64-bit address, ignoring
pcilib: Resource 3 in /sys/bus/pci/devices/0000:81:00.0/resource has a 64-bit address, ignoring
01:00.0 VGA compatible controller: nVidia Corporation GeForce 7800 GTX (rev a1)
81:00.0 VGA compatible controller: nVidia Corporation GeForce 7800 GTX (rev a1)

Looks like two video cards detected.

pcilib: Resource 0 in /sys/bus/pci/devices/0000:81:00.0/resource has a 64-bit address, ignoring
pcilib: Resource 1 in /sys/bus/pci/devices/0000:81:00.0/resource has a 64-bit address, ignoring
pcilib: Resource 3 in /sys/bus/pci/devices/0000:81:00.0/resource has a 64-bit address, ignoring
-+-[0000:80]-+-00.0
| +-01.0
| +-07.0
| +-08.0
| +-0a.0
| +-0d.0-[0000:82]--
| \-0e.0-[0000:81]----00.0
\-[0000:00]-+-00.0
+-01.0
+-01.1
+-02.0
+-02.1
+-04.0
+-06.0
+-07.0
+-08.0
+-09.0-[0000:03]----01.0
+-0a.0
+-0d.0-[0000:02]--
+-0e.0-[0000:01]----00.0
+-18.0
+-18.1
+-18.2
+-18.3
+-19.0
+-19.1
+-19.2
\-19.3


They are both connected to memory busses i believe.

However, when i start X with SLI="ON", i get the following error in Xorg.0.log

(**) NVIDIA(0): Option "SLI" "on"
(**) NVIDIA(0): NVIDIA SLI enabled; using auto-selected rendering method.
(WW) NVIDIA(0): Failed to initialize SLI! Reason: Only one GPU detected.


Is there anything specific I may be doing wrong or a step I may have left out?
DavidGregory is offline   Reply With Quote
Old 07-14-06, 08:01 AM   #2
zander
NVIDIA Corporation
 
zander's Avatar
 
Join Date: Aug 2002
Posts: 3,740
Default Re: RHEL4, 7800GTX, SLI (only one GPU detected)

@DavidGregory: please generate and attach a complete nvidia-bug-report.log file (please see http://www.nvnews.net/vbulletin/showthread.php?t=46678).
zander is offline   Reply With Quote
Old 07-14-06, 08:11 AM   #3
DavidGregory
Registered User
 
Join Date: Jul 2006
Posts: 7
Default Re: RHEL4, 7800GTX, SLI (only one GPU detected)

Sorry about that.
Attached Files
File Type: zip log.zip (26.6 KB, 133 views)
DavidGregory is offline   Reply With Quote
Old 07-14-06, 09:42 AM   #4
Chalnoth
Registered User
 
Join Date: Jul 2002
Posts: 1,293
Default Re: RHEL4, 7800GTX, SLI (only one GPU detected)

Looks like it's detecting the link width at 16x. Unless you have one of the newer nForce4 SLI x16 chipsets, it's possible that you just didn't set the motherboard to SLI mode. Most SLI motherboards have a paddle that must be inverted to support SLI.

What motherboard do you have?
__________________
"Physics is like sex. Sure, it may give some practical results, but that's not why we do it." - Richard P. Feynman
Chalnoth is offline   Reply With Quote
Old 07-14-06, 09:46 AM   #5
DavidGregory
Registered User
 
Join Date: Jul 2006
Posts: 7
Default Re: RHEL4, 7800GTX, SLI (only one GPU detected)

Its a SuperMicro H8DCE

Do you mean that there is a jumper on the motherboard? Or are you talking about a BIOS setting?
DavidGregory is offline   Reply With Quote
Old 07-14-06, 09:48 AM   #6
Chalnoth
Registered User
 
Join Date: Jul 2002
Posts: 1,293
Default Re: RHEL4, 7800GTX, SLI (only one GPU detected)

Quote:
Originally Posted by DavidGregory
Its a SuperMicro H8DCE

Do you mean that there is a jumper on the motherboard? Or are you talking about a BIOS setting?
Okay, it looks like that should support 2 full x16 slots, so I guess that shouldn't be the problem.
__________________
"Physics is like sex. Sure, it may give some practical results, but that's not why we do it." - Richard P. Feynman
Chalnoth is offline   Reply With Quote
Old 07-14-06, 10:22 AM   #7
zander
NVIDIA Corporation
 
zander's Avatar
 
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].
zander is offline   Reply With Quote
Old 07-14-06, 11:04 AM   #8
DavidGregory
Registered User
 
Join Date: Jul 2006
Posts: 7
Default Re: RHEL4, 7800GTX, SLI (only one GPU detected)

Not to be obtuse but what does that mean? Is that an old school IRQ conflict? How should I go about resolving this problem?

Thanks for your help so far.

-David
DavidGregory is offline   Reply With Quote

Old 07-14-06, 11:33 AM   #9
Chalnoth
Registered User
 
Join Date: Jul 2002
Posts: 1,293
Default Re: RHEL4, 7800GTX, SLI (only one GPU detected)

Update your motherboard's BIOS
__________________
"Physics is like sex. Sure, it may give some practical results, but that's not why we do it." - Richard P. Feynman
Chalnoth is offline   Reply With Quote
Old 07-14-06, 02:14 PM   #10
DavidGregory
Registered User
 
Join Date: Jul 2006
Posts: 7
Default Re: RHEL4, 7800GTX, SLI (only one GPU detected)

Well that worked.... sort of

I upgraded from version 1.1 to 1.1a.

The machine boots ok and as far as i can tell so far, SLI works also. However, the motherboard speaker beeps randomly (in tone and rythm) once X starts. If i remove one video card, no beeps and everything is normal.

I called Supermicro tech-support -- they were totally baffled. One tech suggested upgrading the firware on the video cards. But EVGA's website doesn't list a download for my card (N527). Another tech suggested disabling the speaker...


PS - disabling SLI with two cards in the machine also stops the beeping.
DavidGregory is offline   Reply With Quote
Old 07-14-06, 02:21 PM   #11
zander
NVIDIA Corporation
 
zander's Avatar
 
Join Date: Aug 2002
Posts: 3,740
Default Re: RHEL4, 7800GTX, SLI (only one GPU detected)

@DavidGregory: is the beeping code documented someplace? Is it possible that this is a power supply related problem (i.e. is the power supply powerful enough, are SLI related power connectors on the mainboard connected, if any, etc.)?
zander is offline   Reply With Quote
Old 07-14-06, 02:26 PM   #12
DavidGregory
Registered User
 
Join Date: Jul 2006
Posts: 7
Default Re: RHEL4, 7800GTX, SLI (only one GPU detected)

The beeping is not a code -- it sounds random (althought i'm sure its not "really" random). In any event, i even let the Supermirco tech support hear the beeping over the phone - they said it did not sound like any error code they had ever heard of.

As far as power goes, I have an antech 550W power supply. Both cards have the auxilary SLI power connectors plugged in.
DavidGregory is offline   Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


Similar Threads
Thread Thread Starter Forum Replies Last Post
Maintain Your Privacy by Manually Accepting and Rejecting "Cookies" (nV News) MikeC Open Forum 2 02-02-13 07:15 PM
Choosing The Right GPU To Take Adobe Workflows To The Max News Archived News Items 0 05-29-12 05:40 PM
GTC Poster Session Shows Breadth of GPU Research News Archived News Items 0 05-15-12 01:50 AM
GPU Tech Conference Off to a Fast Start in San Jose News Archived News Items 0 05-14-12 05:00 PM
New GPU from Nvidia Announced Today, the GeForce GTX 670 News Archived News Items 0 05-10-12 01:50 PM

All times are GMT -5. The time now is 01:00 PM.


Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 1998 - 2014, nV News.