07-11-2016, 10:40 PM
(07-11-2016, 08:37 PM)darkseid4nk Wrote: I think I would also like to question your hardware. What PSU do you have? The rigs I build with 8 x GPUs in them have 3 x 1600W 80Plus Platinum PSUs. Are you sure all of your GPUs are getting enough power? Ive personally built a good number of systems with 8x290x and never had a problem with ubuntu detecting less than the correct number of GPUs unless there was a problem with a GPU itself or a problem with the pcie slot. All the servers I built have all been ubuntu 14.04 + newest fglrx driver.
That's something I hadn't thought about... I think you are on to something!!
The rig is getting 6,400 watts, plus a failover
RPSU
Output Watts
3,200 Watts (200-240Vac input)
Redundancy 2+1
BUT forced me to go back in and look at the cards physically! The student had set up 4/8 cards with 2x4 power cables and 4/8 with 2x3 power cables (I hadn't realized that)!! I think the second set is NOT getting the power they need!!
I will get the correct cables and check it!
THANKS!!!