- Apr 4, 2016
- 2
- 0
- 1,510
Hi guys,
First post on this site and first gaming rig ive ever built, but have gained a huge amount of knowledge from this forum, so far.
Apologies if this has been posted before. I did have a look, but didnt find anything about causing low clock/memory speeds. I already have the 750ti, so wasted money is not an issue.
Im running 2x gtx 960 4gb FTW's in sli, which worked well until i added a gtx 750ti as a dedicated physx card.
Since putting in the 750ti, ive noticed my clock and memory speed on the second 960 have dropped to 134mhz and 304mhz respectively.
Ive set up sli properly, as far as i know.
Before the 750ti went in, I got high matching clock and memory speeds and a 3d mark firestrike score of 12334.
Since adding the 750ti, the 3d mark score has dropped to 11894 and indicates that the second gpu is not running at anywhere near the same speeds.
I have confirmed this with msi afterburner.
Is this because the 750ti is not up to the job? or is it likely I have made an error in installation or settings?
I already had the 750ti from before the 960s. I only added it in the hope of more stable fps. If its going to cause too many issues, I can go back to just the sli. Would be nice to incororate it though, if it is going to help.
I previously had set the CPU for physx, which did increase the firestrike score up to 12334 from 11 something. My intention is to take the physx away from the CPU and sli entirely, so they can just focus on the rendering etc...
NOTE: I have since removed the 750i and the score has gone back to normal. The clock/memory speeds and voltage are back to normal too.
When it was installed the 750ti was running at normal clock speeds, it was just the 2nd gpu that was running slow.
Both sli cards were running at 8x 3.0 with the 750ti running at 8x 1.1
Without the 750ti installed, gpu1 is at 16x 3.0 and gpu2 is at 8x 3.0
My rig:
Gigabyte x99 ud5 wifi mobo
Intel I5820k @4.6ghz
32gb (4x8gb) ddr4 vengeance ram @ xmp profile 2 2400mhz
2x EVGA GTX960 4gb FTW in sli
EVGA gtx 750ti 2gb dedicated physx
Corsair H110i water cooler for cpu
Corsair RM850 PSU
Crucial 250gb ssd for OS
Crucial 500gb ssd for games
WD 1tb hdd for storage.
Zalman z11 neo case
Nvidia driver 361.91 (due to rumoured issues with latest drivers)
Thank you in advance for your help.
First post on this site and first gaming rig ive ever built, but have gained a huge amount of knowledge from this forum, so far.
Apologies if this has been posted before. I did have a look, but didnt find anything about causing low clock/memory speeds. I already have the 750ti, so wasted money is not an issue.
Im running 2x gtx 960 4gb FTW's in sli, which worked well until i added a gtx 750ti as a dedicated physx card.
Since putting in the 750ti, ive noticed my clock and memory speed on the second 960 have dropped to 134mhz and 304mhz respectively.
Ive set up sli properly, as far as i know.
Before the 750ti went in, I got high matching clock and memory speeds and a 3d mark firestrike score of 12334.
Since adding the 750ti, the 3d mark score has dropped to 11894 and indicates that the second gpu is not running at anywhere near the same speeds.
I have confirmed this with msi afterburner.
Is this because the 750ti is not up to the job? or is it likely I have made an error in installation or settings?
I already had the 750ti from before the 960s. I only added it in the hope of more stable fps. If its going to cause too many issues, I can go back to just the sli. Would be nice to incororate it though, if it is going to help.
I previously had set the CPU for physx, which did increase the firestrike score up to 12334 from 11 something. My intention is to take the physx away from the CPU and sli entirely, so they can just focus on the rendering etc...
NOTE: I have since removed the 750i and the score has gone back to normal. The clock/memory speeds and voltage are back to normal too.
When it was installed the 750ti was running at normal clock speeds, it was just the 2nd gpu that was running slow.
Both sli cards were running at 8x 3.0 with the 750ti running at 8x 1.1
Without the 750ti installed, gpu1 is at 16x 3.0 and gpu2 is at 8x 3.0
My rig:
Gigabyte x99 ud5 wifi mobo
Intel I5820k @4.6ghz
32gb (4x8gb) ddr4 vengeance ram @ xmp profile 2 2400mhz
2x EVGA GTX960 4gb FTW in sli
EVGA gtx 750ti 2gb dedicated physx
Corsair H110i water cooler for cpu
Corsair RM850 PSU
Crucial 250gb ssd for OS
Crucial 500gb ssd for games
WD 1tb hdd for storage.
Zalman z11 neo case
Nvidia driver 361.91 (due to rumoured issues with latest drivers)
Thank you in advance for your help.
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