Charles Wirth
06-22-2008, 11:33 PM
The setup;
Chilly1 three stage cascade -100c
Intel QX9770 C1 CB @ -104c
EVGA 790i unmodded
EVGA GTX 280 FTW Edition
Corsair Domaintor 1800C7DIN
Thermatake 1200w PSU
Windows 2008 64bit Server for Futuremark Vantage runs
Riding between -95c and -85, quad core test run at 5.4Ghz 450x12
Memory in sync 1800Mhz 7-6-6-15-1t 2v
Vcore 1.88v in bios, actual around 1.83v
Unmodded stock GTX 280 cards @ 730/1588/2500
E69279 - Entry
http://service.futuremark.com/compare?3dmv=187605
P25984 - Performance
http://service.futuremark.com/compare?3dmv=187795
H17605 - High
http://service.futuremark.com/compare?3dmv=186128
All top spots for 2 GPU in SLI and cards on air.
Overclocking 790i went great both rounds, the motherboard took a beating from being stressed for scrap of bandwidth possible. One hard drive did suffer a failure during boot and was not repairable, going past 1.86v will cause the system to power down on reboots and resets. Also, setting the vcore past 1.95v would cause reboot loop, 1.95v was fine. I have seen this on several 780i/790i boards. Setting higher vcore in windows is possible and we pushed it to 2v with the E8500 trying to break past 600FSB, we maxed out around 615FSB and no benches run at that speed. 600FSB for all the top end dual core in round 2 found here (http://www.xtremesystems.org/forums/showthread.php?t=191930)
Overclocking the GTX 280 went perfect, they cards are very forgiving when pushed too hard. When they do crash from overclocking it will blow out the texture and pause, it is possible to press escape and return to 2D, then return to the bench and run it again to complete. This happened a few times, rarely would it crash graphics and lock up or reboot, a gpu crash would be soft and quick to recover. When you find a stable clock it is very stable, all benches will run at that clock speed including the physics test.
Setting clocks with Rivatuner will only clock one card, you will need to "apply on restart" to get both cards to the same clock speed. Pretty much all OC applications work with the GTX 280 and 177.x driver.
It seems that SLI on Skulltrail has been disabled in the driver, confirmed on two systems that SLI cannot be enabled. I will follow up with Nvidia.
The Physx driver from Nvidia is a welcome surprise and proving to be very strong in Vantage. The sheer power of GPU physics is reality, it is a huge win for Nvidia.
Thanks EVGA (http://www.evga.com) for the support, these runs would not be possible without it.
Huge thanks to Pedro Rocha for dropping by Vegas and taking the cards for a spin. "Man these cards are really something, can't wait to have one. better 2 to try the 1800fps Nature Stock Cards :D"
http://www.xtremesystems.org/forums/attachment.php?attachmentid=80908&stc=1&d=1214189272
Chilly1 three stage cascade -100c
Intel QX9770 C1 CB @ -104c
EVGA 790i unmodded
EVGA GTX 280 FTW Edition
Corsair Domaintor 1800C7DIN
Thermatake 1200w PSU
Windows 2008 64bit Server for Futuremark Vantage runs
Riding between -95c and -85, quad core test run at 5.4Ghz 450x12
Memory in sync 1800Mhz 7-6-6-15-1t 2v
Vcore 1.88v in bios, actual around 1.83v
Unmodded stock GTX 280 cards @ 730/1588/2500
E69279 - Entry
http://service.futuremark.com/compare?3dmv=187605
P25984 - Performance
http://service.futuremark.com/compare?3dmv=187795
H17605 - High
http://service.futuremark.com/compare?3dmv=186128
All top spots for 2 GPU in SLI and cards on air.
Overclocking 790i went great both rounds, the motherboard took a beating from being stressed for scrap of bandwidth possible. One hard drive did suffer a failure during boot and was not repairable, going past 1.86v will cause the system to power down on reboots and resets. Also, setting the vcore past 1.95v would cause reboot loop, 1.95v was fine. I have seen this on several 780i/790i boards. Setting higher vcore in windows is possible and we pushed it to 2v with the E8500 trying to break past 600FSB, we maxed out around 615FSB and no benches run at that speed. 600FSB for all the top end dual core in round 2 found here (http://www.xtremesystems.org/forums/showthread.php?t=191930)
Overclocking the GTX 280 went perfect, they cards are very forgiving when pushed too hard. When they do crash from overclocking it will blow out the texture and pause, it is possible to press escape and return to 2D, then return to the bench and run it again to complete. This happened a few times, rarely would it crash graphics and lock up or reboot, a gpu crash would be soft and quick to recover. When you find a stable clock it is very stable, all benches will run at that clock speed including the physics test.
Setting clocks with Rivatuner will only clock one card, you will need to "apply on restart" to get both cards to the same clock speed. Pretty much all OC applications work with the GTX 280 and 177.x driver.
It seems that SLI on Skulltrail has been disabled in the driver, confirmed on two systems that SLI cannot be enabled. I will follow up with Nvidia.
The Physx driver from Nvidia is a welcome surprise and proving to be very strong in Vantage. The sheer power of GPU physics is reality, it is a huge win for Nvidia.
Thanks EVGA (http://www.evga.com) for the support, these runs would not be possible without it.
Huge thanks to Pedro Rocha for dropping by Vegas and taking the cards for a spin. "Man these cards are really something, can't wait to have one. better 2 to try the 1800fps Nature Stock Cards :D"
http://www.xtremesystems.org/forums/attachment.php?attachmentid=80908&stc=1&d=1214189272