Catzilla Multi-gpu

[Doug2507]

Hey guys,

 

Running Cat 720 at the moment on tri sli (Ti) and seem to be having some sort of an issue.

 

Last night i ran a couple of time and lost the clocks on gpu, probably due to temp. Thats all rectified now and i've been monitoring clocks this morning and there's no issue holding them.

 

Score at the end of the run is less than i had with x2 sli, by a good bit. (46k v's 51k) Is this a software issue on the Cat side of things or have i completely missed something? (3 gpu afr enabled).

[Doug2507]

Just ran with AB on top, appears the clocks aren't holding max throughout the bench and 1 or 2 cards will drop by a few hundred mhz at points. Anyway of forcing the clocks to stay as set? Mod bios myself?

[Gunslinger]

I don't think there is any scaling with Nvidia past 2x cards with this bench either, once you get the clock issue fixed.

 

EVGA PrecisionX has a K-Boost disable feature, you should be able to force a constant clock.

[Doug2507]

Yeah, seems to be good Mike. Changed from nvi to AB for clocks and managed to keep them higher for longer, still had two drop at a couple of points though and not entirely sure why as they should be P0 through the whole run….running Skyn3t's rev.5 with boost disabled.

[Doug2507]

k-boost won't enable (can't even open voltage) which might be driver related. Rolled back from 337 to 335 and no change. I'll flash to kpti/xoc and see if that makes a difference. Ti's are looking good though for tri.

[Doug2507]

Worked a treat Mike, holds all the way through and with 337. Still need to figure out tri settings as it seems to be hit and miss scoring wise, mostly below par.

[Doug2507]

Sorted.

Edited May 5, 2014 by Doug2507

[Oldscarface]

And, what was the problem?