If you move your strap up to 400mhz you can probably get by with a lower NB voltage. There should be a divider that will keep your ram at DDR2-800 (2.00B on Gigabyte, not sure about Asus). Or, you can probably set the strap to Auto and it'll give you DDR2-800 as one of the options. Would love to be more specific but can't connect to Asus' download site for the manual.