I am comfortable of changing stuff in BIOS but unfortunately, InsydeH20 Rev 3.0 doesn't offer much to do except do tests and disable and enable certain stuff. How do I clear CMOS? just wondering. Is there a combination of buttons etc etc? Just last night Vista refused to use 2560MB and only using 2GB instead of 2.5...I have no idea why and Vista is acting REALLY slow even though I clean and defrag my computer fairly often. I am in process of reinstalling Vista though. More help is much appreciated