9800GX2 Multi-GPU Problems

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RockyMarc

n00b
Joined
Apr 20, 2008
Messages
6
Aloha !

I recently purchased a whole new lots of parts for a new rig, but been having alot of troubles getting the 9800GX2 to run properly with Multi-GPU activated.
Anyway so when it's activated through the Nvidia Control Panel (using latest drivers), Windows Desktop runs fine, but as soon as you load up a 3d game, it starts to do massive flickering / blinking to the screen, at first it looks like some sort of vsync problem, but mucking around with those settings didn't fix it.
So I turned off multi-gpu and works fine!

Here is my rig -

PSU - Thermaltake Toughpower W0133 Cable Management 1200W (recommended by Nvidia)
Motherboard - Asus Striker II Extreme (Latest Drivers & Bios)
Graphics - XFX 9800GX2 (Latest Drivers with 6pin & 8pin connected correctly)
Ram - Asus DDR3 1333Mhz 2Ghz

Some people said it may be heat, so I installed RiverTuner and got the Graphics card down to 38deg.
The Graphics is running off 12V4 from the PSU.

Here are some Video Links -

www.members.iinet.net.au/~rathbone1/multigpu.zip
Now it's hard to spot the flickering on the menu screen, but it is happening, to see how bad it gets (when entering the game) I can go to the Video options.

www.members.iinet.net.au/~rathbone1/nomultigpu.zip
Here I am turning off multi-gpu, loading up a game again, no blinkering!

FRAPS could not detect the blinking while recording.

Any ideas ?

Cheers
 
I have a similar rig, haven't installed HL2 and TF2 yet, but CoD4, Crysis, and Lost Planet seem to be working fine in Vista x64.

What BIOS are you on? 0402 is the latest production BIOS, but there's a couple of beta BIOS'es out there, 0508 and 0601. Also, any overclocking? What CPU?
 
Currently there is no overclocking.
CPU - Intel Core 2 Quad Q9450
O/S - Windows XP SP2

I have crysis, and it does the exact same thing.
I have the 0402 BIOS, but thinking of going to the 0601 if I can't work out the problem in Windows.
 
Does it make any difference if SLI is enabled or not? Have you tried with only one stick of RAM at a time? Start a support ticket at www.xfxforce.com and PM me the ticket number.
 
Alot of games are having issues with the 9800 GX2. Disabling Multi-GPU or use 173.67 drivers.

I have an MSI 9800GX2, already reported this to Nvidia. Serious problem, I'm about ready to RMA the card and toss in the towel already.

XFXSupport - is this the first you heard of this? Lots of posts here, nvnews, guru3d, Ubisoft forums (vegas 2)....
 
Well with the Asus Striker II Extreme motherboard, there is no option to disable or enable SLi in the bios. I've looked everywhere and cannot find it.
There is however an SLi option, but it is greyed out, and I can't seem to make it changable by enabling / disabling things that might have an effect on it.

No I haven't tried one stick of RAM yet. I'm currently at work and not at my 9800gx2 computer, the ticket I have started with XFX has come to a halt as they require the serial number off the card, which ofcourse I haven't got everytime I post :|
(I don't get much time to myself these days) :(

**EDIT** It has been confirmed, with the many forum's I've posted this problem on I've buddied all the people with the same problem, we have all got together and tried our many situations, and this is what we have just received -
I have a Samsung TV LCD M86 52" (1080p 60Hz) but I can confirm you that the problem is just with Win XP since I have a dual boot PC with XP SP2 and Vista 64.
With Vista 64 everything is ok.
 
RockyMarc said:
Well with the Asus Striker II Extreme motherboard, there is no option to disable or enable SLi in the bios. I've looked everywhere and cannot find it.
There is however an SLi option, but it is greyed out, and I can't seem to make it changable by enabling / disabling things that might have an effect on it.

No I haven't tried one stick of RAM yet. I'm currently at work and not at my 9800gx2 computer, the ticket I have started with XFX has come to a halt as they require the serial number off the card, which ofcourse I haven't got everytime I post :|
(I don't get much time to myself these days) :(

**EDIT** It has been confirmed, with the many forum's I've posted this problem on I've buddied all the people with the same problem, we have all got together and tried our many situations, and this is what we have just received -
I have a Samsung TV LCD M86 52" (1080p 60Hz) but I can confirm you that the problem is just with Win XP since I have a dual boot PC with XP SP2 and Vista 64.
With Vista 64 everything is ok.
Click to expand...


Sorry man, not in the bios. In the Drivers change from Multi-GPU to Multi-Display - this will disable the second card on the 9800 GX2. See if that works for you, does for most everyone else.

multi-gpu-config-setting.jpg
 
I'm working with a few guys I know at Nvidia to get this fixed. You can go back to 173.67 on the disk and it will function fine, however some games performance sucks, ie: Crysis is about 10 FPS slower on average vs 174.xx.


Also, while 173.67 works fine in XP, they dont seem to work properly for me in Vista x86.
 
Haha oh man what a bugger up hey.
Yeah I knew it was a bloody software issue, after the retailers covering their arse and telling me to buy a $450 1200W PSU for nothing...
:eek:
 
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