Quote Originally Posted by p331083 View Post
My system has been suffering from audio/video stuttering ever since I upgraded to windows 7. Ive ran the latency checker and it shows me spiking all the way up to 70-80k, which is pretty bad.

Ive tried just about every solution I could think of; swap soundcard/videocard, update/try drivers for every device, go into device manager and disable every device I could, reinstall windows(premium/ultimate/betas), update mobo BIOS, use default bios settings, changing out memory etc. everything short of swapping out for a new motherboard(dont exactly have another i7 board on hand to try that). All the hours ive spent on the net say it can be any random driver/irq/device conflict so pin pointing it down to a single point is almost impossible.

Has anyone else every had an issue with DPC latency similar to mine?

system specs;
CPU - I7 920 @ 3700mhz
MOBO - DFI X58-T3eH8
RAM - OCZ 6GB PC3-12800 Flex EX
Video - EVGA GTX295
HDD - 300GB Raptor / 1TB Samsung F1
Take out as many variables as possible. Run with just 1 stick of RAM, on stock settings. Detach your secondary hard drive and only use your primary one to boot into windows. Move your videocard to a different PCI-E slot. Detach any USB devices you don't need. (Wifi USB stick, storage USB, headset, printer, etc). Don't use anything else in your PCI and PCI-E slots. Now test again and report back what you're seeing.

And by the way, did you run the DPC Latency checker right after installing windows? Don't install any drivers or anything else. Run it right after you hit the desktop. If it's good, install drivers/attach devices one by one and keep checking if it comes back. That's the only way to pinpoint the problem. Good luck!