jazzboxmaker
10-08-2010, 03:47 PM
Short Story:
Anybody else out there that was struggling getting your Geforce GTX400 series working in Win 7 will be very happy to know that the new beta driver 260.63 fixes the latency issues.
http://www.nvidia.com/Download/Find.aspx?lang=en-us
You have to look in the beta/archive section
Long version:
I beefed up my DAW to do some video work. Win 7 64bit, Q8400 O.C.'d to 3.2gHz with big quiet fans, 4g ram, big monitor and Nvidia GTX460. Did the tweaks to get Adobe Mercury engine to use the 460. Video running pretty nice. SAC and SAW on the other hand- forget it, 2x512 still dropping buffers. Tried Bob's and other tweaks, fired up the DPC checker and there was a regular parade of Big Red Spikes up to 3000us. Got MS SDK and ran the traces to find that it was the Nvidia driver lousing up the works. Changed the video driver to Std. VGA and bingo-no spikes.
Unfortunately, MS in it's wisdom did away with hardware profiles so had to stay in dual boot land with XP for audio, W7 for video. Nvidia saved the day though acknowledging the problem was theirs and coming out with a fix. Now can get both in W7- Video using CUDA etc. and SAW/SAC running 1X64 with my Fireface 400 when the best I could do in XP was 1X128- OOOOOHH YEAH- we talking smoooooooth:)
BTW if you want to run Adobe Premiere or After Effects CS5 Mercury Engine without buying an Nvidia Quattro, here's the hack:
http://blog.krama.tv/hacking-adobe-premiere-cs5-to-enable-more-nvidia-cuda-cards/comment-page-1/
You need 1G of video memory for it to work
Anybody else out there that was struggling getting your Geforce GTX400 series working in Win 7 will be very happy to know that the new beta driver 260.63 fixes the latency issues.
http://www.nvidia.com/Download/Find.aspx?lang=en-us
You have to look in the beta/archive section
Long version:
I beefed up my DAW to do some video work. Win 7 64bit, Q8400 O.C.'d to 3.2gHz with big quiet fans, 4g ram, big monitor and Nvidia GTX460. Did the tweaks to get Adobe Mercury engine to use the 460. Video running pretty nice. SAC and SAW on the other hand- forget it, 2x512 still dropping buffers. Tried Bob's and other tweaks, fired up the DPC checker and there was a regular parade of Big Red Spikes up to 3000us. Got MS SDK and ran the traces to find that it was the Nvidia driver lousing up the works. Changed the video driver to Std. VGA and bingo-no spikes.
Unfortunately, MS in it's wisdom did away with hardware profiles so had to stay in dual boot land with XP for audio, W7 for video. Nvidia saved the day though acknowledging the problem was theirs and coming out with a fix. Now can get both in W7- Video using CUDA etc. and SAW/SAC running 1X64 with my Fireface 400 when the best I could do in XP was 1X128- OOOOOHH YEAH- we talking smoooooooth:)
BTW if you want to run Adobe Premiere or After Effects CS5 Mercury Engine without buying an Nvidia Quattro, here's the hack:
http://blog.krama.tv/hacking-adobe-premiere-cs5-to-enable-more-nvidia-cuda-cards/comment-page-1/
You need 1G of video memory for it to work