DPC Latency Checker

[zalbard]

I tried disabling pretty much everything but they keyboard...
i7 920, 5870, 6GB of G.Skill RAM, Auzentech X-Fi Forte (I tried disabling it), I removed the mouse for the test, Logitech Lycosa keyboard (could not disable it entirely without reinstalling the drivers so I didn't bother), Samsung F3. Not using the page file. Large System Cache enabled.

Tried disabling the sound card, the mouse, the gamepad (although not sure I disabled it entirely) the RAMdisk, the DVD drive, the network adapter, all the ATA controllers, most USB controllers, didn't help. Couldn't disable the keyboard properly (can only uninstall the driver it seems... Razer Lycosa).

Is anyone running Win7 64-bit with ultra low latency? I am wondering if 32 -> 64 bit transaction is creating the issue...