Crash with cubix xpander

[enricocerica]

Hi,

I have a strange problem with my Cubix xpander.
I have two gtx580 on it, if I activate both cards in Octane it crashes sometimes immediately, sometimes after several minutes, sometimes after an hour, but often as soon as I activate both cards it crashes immediately with a blue screen or one card fails.
I first thought one of the cards was defect but if I only use one of them changing alternatively the activated card it works fine.
I have the last Nvidia drivers, tried with previous versions and got the same issue, though I didn't installed very old one.
Any idea ?
Thanks

[whersmy]

Maybe the psu is somewhat faulty?
You can try checking with less power hungry gpus plugged in if it remains

Check with afterburner how the power usage is with just one 580, and two, to see the stability of it

Did the problem just happen out of nothing?

[enricocerica]

Thanks Wersmy,

It worked fine some times ago, duno exactly when it started to bug ...
Will try what you suggest.

[enricocerica]

Well I reduced the clock for both the cards and it seems much more stable.
So you may be right, the PSU is probably the origin of the issue, will try to change it.
Thanks