The P4P800 Deluxe motherboard manual, shows a "USB Mass Storage Device
Configuration" page in the BIOS, so it does know something about USB
storage devices. The trick will be, figuring out just what it
needs to work.
Paul
my board a P4V800D-X, is essentially the same as the P4P800 but, with a VIA
chipset instead of Intel, and it *does* boot from USB devices *with some
limits*
It only seems to boot from a memory card if the card reader is USB 2 and
will only boot from true USB thumb drives, not MP3 players :o(
Also worth mentioning is USB drives < 512MB are considered floppies by
default (this can be changed in the BIOS)
HTH
Mick
Though I don't have your mobo, ASUS recently (about 6 months ago,) added to
my mobo bios, a P5W DH Deluxe, the boot from USB device to their BIOS
update. I now have a screen added to the boot sequence that states "No USB
device found, continuing boot sequence" each time I boot my computer that I
did not have before the most recent bios update.
Perhaps you can look and see if their are any updates to your bios that
offers this. It is definitely a recent addition to many mobo's bios.
William
The 2.51 sounds more like a version number for the flash utility,
except that the latest listed for the P4P800 Dlx is 2.26. The BIOS
numbers are in the 10xx range, as you indicated, Walter.
ID