Apparently the P45 boards don't have this issue. If you're shopping for Gigabyte, you might want to jump to that series. Most P35s have the issue, though the latest beta bios essentially solves the problem for me. Under Vista x64 I rarely spike above 60us now. Other people haven't been so lucky...
It's most likely the Nvidia 177.xx drivers. I tried them last week and my latency did the exact same thing as yours. Went back to the official driver and all is normal again. Those drivers are written for the 260/280 Nvidia cards and seem to cause the latency spikes when a modded version is used...
The latest beta bios will almost surely help your results. It probably won't completely eliminate spikes - you have fairly a similar setup to mine and my spikes are most likely caused by Nvidia's drivers - but it will lower your overall latency. Try requesting the beta bios for your board from...
No new bios for mine, sadly (GA-P35-DS4 Rev. 2.0). At this point I'd be happy with a beta that worked without the 9x multiplier bug. I've been trying to use the DTS Connect feature from the onboard sound with the official bios, but when I enable it my latency goes through the roof and the audio...
Is anyone else running a GA-P35-DS4 with an e8400 processor with the new bios? I recently upgraded to one and the beta bios for my board seems to have a bug that prevents changing the FSB at the default 9x multiplier for this chip. I got a message from Colin with the latest release (f12c) saying...
That's the weird part. On my rig, the spikes are completely eliminated with the beta bios in XP and Vista x64. It's only in Vista 32. That tells me it's more likely a system process or kernel level driver causing it, but I'm stumped as to which one.
I'm still unable to pinpoint the cause of the spikes under 32-bit Vista with my GA-P35-DS4. With the beta bios, they are all but eliminated under XP and 64-bit Vista, but I continue to get 1000us spikes at regular (roughly 10-second) intervals under Vista x86. I'm using the same hardware and...
I think it's important to keep in mind that some of the spikes may be due to kernel-level drivers or processes. I run Vista x64, but have also tested DPC checker in Vista 32 and XP. The spikes are gone in Vista 64 and XP, but I still get them in Vista 32. I have yet to narrow it down, but that...
I just realized the other day I had audio problems as well. I had been using my Audigy 2 since I originally got the board, but decided to give the onboard audio a try. The rear outputs don't work at all even though they are detected. If I set it to 7.1 instead of 5.1 and manually assign the rear...
I don't think the bios addressing DPC latency has been released to the website yet. I got it a couple of days ago from Gigabyte tech support and it does indeed have a huge impact. With my GA-P35-DS4 under Vista I was experiencing sustained spikes in the 1000-2000 range. After the beta 13b bios...
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