I would like to thank bingo13, Jeff Flowerday and KaminoReal for the information provided. For a long time I have been very interested in which 1156 socket motherboard, either Asus P7P55D Deluxe or equivalent Gigabyte, would be best for audio work (DAW). I have not checked the audio forums lately and was unaware that the HPET would effect DPC latency.

Kamino, do you know if disabling HDA (high definition audio) on the Asus P7P55D Deluxe also disables the HPET? Are you aware of any tools that will display whether the HPET is enabled or disabled?

bingo13, I second Jeff Flowerday's recommendation to add support for disabling the HPET in the bios. Can this be done for the P7P55D Deluxe? I also agree with Jeff that many audio guys would like to have this option.

Jeff, can you provide the URL to the audio forum thread that discusses the HPET issue?

thanks to all.