Just remember that from any BIOS version beyond 1007-002 you should use either provided DOS flash utility (packed in ZIP file) or ASUSUpdate from version 6.03.01 upwards!
I have tested this (newest to this date) 1007-SD004 BIOS version and T1 timings are still not working properly. This version is quite different to previous beta .003 and enables for higher CPU/core voltage (up to 1.65V finally) and higher memory dividers. This should make this mobo even greater overclocker but still not quite as good a performer as it should be given 1T timings are working only with nominal memory speeds. When they solve this issue, as far as I'm concerned, a new official version can be released.
And not a day before that, dear ASUS, you own us at least that much!!!
To any o/c still stuck with this mobo, please post your successes with newest BIOS revision,
Best, MyK :shocked: