Video Cards: 3x EVGA 680 2GB, 1x Zotac ZT-98GES5P-FDL 9800GT via slot 2a
GPU Utilization Factor of BRP apps: 0.5 - I run 0.5 via this host because on one of my cards, I intermittently get errors when running 0.33.
I'd recommend to check memory on this problem card. I had the same problem - more then 2 Wus on buggy card and I'm getting sporadic errors on it. Utilities such as WMT may help. Was lucky enough to return this card to the seller.
I'd recommend to check memory on this problem card. I had the same problem - more then 2 Wus on buggy card and I'm getting sporadic errors on it. Utilities such as WMT may help. Was lucky enough to return this card to the seller.
Thanks for the suggestion. I will see if I can run some memory intensive stress testing on that card. EVGA has good RMA service so that I can RMA if needed.
I have been working with NVIDIA support for the past month or so on the PCI-E 3 issue with newer Linux drivers. The support representative has put in an official bug report request with the engineering team for the 5 GT/s cap with post 295.33 drivers and has requested that a tool be developed to allow for the Kepler cards to operate at 8 GT/s in Linux via these newer drivers. This should be handy for cards that came after the GTX 680 and future cards as 295.33 is limited to supporting only a few Kepler cards up to the 680.
You are right. CPU projects essentially reduce productivity. Thanks for adivice!
3-tasks (GPUs + CPU tasks): 4500 seconds per task averaged - Very slow!
3-tasks (GPUs only): 2700 seconds per task averaged - Much better!
NVIDIA Servet Settings couldn't find PCI-E 2.0 card because nouveau driver in my Linux Mint. After removing nouveau:
Slot 1 - PCI-E 3.0 x16_1 -> 680 installed and set at x16 8.0 GT/s
Slot 2 - PCI-E 3.0 x8_2A -> PCI-E 2.0 card installed here, x8 5 GT/s
Slot 4 - PCI-E 3.0 x16/8_3 -> 680 installed and set at x16 8.0 GT/s
I can't detect effect under BIOS versions 1404. System peformance increased 17-20%, but because of crunching on 285 card. Experiments will be continued,,,
RE: Video Cards: 3x EVGA
)
I'd recommend to check memory on this problem card. I had the same problem - more then 2 Wus on buggy card and I'm getting sporadic errors on it. Utilities such as WMT may help. Was lucky enough to return this card to the seller.
RE: I'd recommend to check
)
Thanks for the suggestion. I will see if I can run some memory intensive stress testing on that card. EVGA has good RMA service so that I can RMA if needed.
I have been working with
)
I have been working with NVIDIA support for the past month or so on the PCI-E 3 issue with newer Linux drivers. The support representative has put in an official bug report request with the engineering team for the 5 GT/s cap with post 295.33 drivers and has requested that a tool be developed to allow for the Kepler cards to operate at 8 GT/s in Linux via these newer drivers. This should be handy for cards that came after the GTX 680 and future cards as 295.33 is limited to supporting only a few Kepler cards up to the 680.
Hello Jeroen, You are
)
Hello Jeroen,
You are right. CPU projects essentially reduce productivity. Thanks for adivice!
3-tasks (GPUs + CPU tasks): 4500 seconds per task averaged - Very slow!
3-tasks (GPUs only): 2700 seconds per task averaged - Much better!
NVIDIA Servet Settings couldn't find PCI-E 2.0 card because nouveau driver in my Linux Mint. After removing nouveau:
Slot 1 - PCI-E 3.0 x16_1 -> 680 installed and set at x16 8.0 GT/s
Slot 2 - PCI-E 3.0 x8_2A -> PCI-E 2.0 card installed here, x8 5 GT/s
Slot 4 - PCI-E 3.0 x16/8_3 -> 680 installed and set at x16 8.0 GT/s
I can't detect effect under BIOS versions 1404. System peformance increased 17-20%, but because of crunching on 285 card. Experiments will be continued,,,
Screenshots here:
http://forum.boinc.ru/resource.ashx?i=769
http://forum.boinc.ru/resource.ashx?i=770