Dual 690 + 680 as display adapter - trouble

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nagboy
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Joined: Thu Jan 03, 2013 5:32 am

Anybody had success in getting a pair of 690's to play well together without major instability?

Asus P9X79 Pro Mobo
Corsair 1200AX Powersupply.
ASUS 690 GTX 4GB x 2
MSI 680 GTX 4GB x x1

This should fly so low, but it don't. With 3x680 its no trouble but when i substitute two 680 with two 690 i get GUI lag, random freezes even when im not rendering just using windows.

I am 100% sure its driver related.

I have newest BIOS on Mobo, and also checked for newest firmware on the 690's. Newest Nvidia drivers.

Any suggestions are welcome
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bepeg4d
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hi, have you disabled the multi gpu support in the nvidia control panel?
ciao beppe
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nagboy
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Yes, I've read/tried all the regular suggestions I could find, including the disable multi-gpu. Very frustrating...
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abstrax
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Joined: Tue May 18, 2010 11:01 am
Location: Auckland, New Zealand

Please try using Octane 1.03 and switch to software display (in the preferences). Also make sure that you have NVIDIA driver 310.90 installed. Then it should work. We've got a setup here with 4 690s and with NVIDIA driver 310.90 things started to work ok.

Also: If you use the 680 not only for display, but also for rendering, the UI becomes more laggy, since the 680 is occupied doing rendering stuff.

Cheers,
Marcus
In theory there is no difference between theory and practice. In practice there is. - Yogi Berra
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nagboy
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After two horrible days of nerding i got it to work flawlessly, it turns out there is a conflict on either the IRQ (blast from the past) or something with the PCI bus. If i disable the raid controller in the bios (no striping for me) it runs without a single hitch. I have two basic OS installations, one on the RAID controller and one on a single drive using the regular SATA controller. If i boot with the raid controller hell breaks lose, if i boot from the single its butterflies. I think this type of conflict can be the cause of trouble in several configurations. Tip if you have trouble: Disable _everything_ you don't need and install a bare minimum OS just to check if it is actually possible to get it to work at all before you give up.
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glimpse
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nagboy wrote:After two horrible days of nerding i got it to work flawlessly, it turns out there is a conflict on either the IRQ (blast from the past) or something with the PCI bus. If i disable the raid controller in the bios (no striping for me) it runs without a single hitch. I have two basic OS installations, one on the RAID controller and one on a single drive using the regular SATA controller. If i boot with the raid controller hell breaks lose, if i boot from the single its butterflies. I think this type of conflict can be the cause of trouble in several configurations. Tip if you have trouble: Disable _everything_ you don't need and install a bare minimum OS just to check if it is actually possible to get it to work at all before you give up.
now these words should be written boldly into manual, 'cos life & s*** happens =) and that's a very good start troubleshooting..
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