Looks like I'm going to need a little help with one of my computers. Apparently the GPU's in one of my computers are producing half the expected PPD. I had mentioned this a few days ago and was going to rebuild it from scratch which I have done. Then I slowed down the GPU's to avoid WU that were essentially crashing. Then I let it run for a couple of days and timed it's work units compared to the computers next to it who's GPU's are running at the same speeds and one particular computer is indeed running at half normal speed and I have no idea why.
The hardware is actually identical to five other computers in that room and the GPU's in the others computers are running at twice the speed (in terms of PPD) of the computer in question. The reporting has been extremely consistent but I am puzzled as to why. All the computers in that room are running two R9 290X TRIX GPU's and it is only the GPU's that are showing half the speed. All the computers are using Catalyst 14.4 drivers.
I know many will suspect the GPU's are being bottle necked. Each machine has a I7 4770K and I'm only using one core to fold and there are only two R9 290X TRIX GPU's in the computer. CPU utilization is only at 14% and that is consistent across all the computers. All the other computers are set up the exact same way and don't seem to have an issue. I've also checked GPU-Z and even though the GPU's are being half as productive as the other GPU's in the other computers they are still showing 100% utilization.
Also I'm using F@H client 7.4.4 on all computers.
Any ideas?
I also have 290x's running on 14.4's. I had to downclock two of them to 947 core, to get them to fold consistantly. At 1000 core, they would fold, but only do about 40,000 PPD, at 947 they do 150,000 PPd a day. I run 4 290x's on one machine with a 4770k. It prob has a bottleneck, but I get more PPD with the four, rather then 3. You might try downclocking them and see if it has any effect.