Your system uses the Asus P2B-VE motherboard. Go to Asus's site and compare your board to the retail version to make sure it has exactly the same features, if it does try the Asus BIOS. HP often used Pheonix BIOS which is not compatable with Award BIOS flashers from Asus, but you can download a universal flash utility called Uniflash from <A HREF="http://www.crashman.dns2go.com" target="_new">http://www.crashman.dns2go.com</A>. Proof that this is your board can be found at <A HREF="http://www.hp.com/cposupport/personal_computing/support_doc/bph07171.html" target="_new">http://www.hp.com/cposupport/personal_computing/support_doc/bph07171.html</A>
Your board appears to be a weird animal as it has the "P2B" name normally reserved for BX chipset boards, but has the ZX chipset (BIOS between both is compatable because the ZX is the BX with a 512MB memory cap added). You can get the latest P2B Beta BIOS which supports the Celeron 1400 from <A HREF="http://www.crashman.dns2go.com" target="_new">http://www.crashman.dns2go.com</A>, but you'll need a Powerleap IP3/T adapter for any Tualatin core CPU's. I can sell you the adapter for $60.
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