Processor compatibility can i get any other CPU besides celeron or P4?

Looks like you limited to the p4 Prescott, this is a p4 list of the cpu support from asus. I also looked at their bios update page and found no bios improvement. if you can move to the 775 platform ,you can move from p4. otherwise, the p4's are still  good . I had the cpu that is the 2nd one down. 3.2ghz oc'd to 3.8ghz full time with a max of 4.0ghz on air[775 platform] quad-pumped gave me a 1001.3mhz FSB
Supports Intel Prescott CPU
4-3.20 GHz Extreme Ed. (800 FSB, HT)   ALL ALL
P4-3.20E GHz (800 FSB, L2 cache:1MB, HT, 90nm)   ALL 1006
P4-3.40 GHz (800 FSB, L2 cache:1MB, rev.G1)   ALL 1011 processor compatibility - gogo.gif
P4-3.40 GHz (800 FSB, L2 cache:512KB, HT, D1)   ALL ALL processor compatibility - gogo.gif
P4-3.40 GHz Extreme Ed. (Socket478, 800 FSB, HT)   ALL ALL processor compatibility - gogo.gif
P4-3.40E GHz (800 FSB, L2 cache:1MB, HT, 90nm)   2.00 1006 processor compatibility - gogo.gif
P4-3E GHz (800 FSB, L2 cache:1MB, HT, 90nm)  
SEE 4 YOURSELF
http://valid.x86-secret.com/show_oc.php?id=156822

No just Pentium and Celeron.