Since you have the board already, just look at the sticker on top of the BIOS chip
here, more or less. One of the numbers on the sticker will be
100x and show what BIOS it shipped with.
Bigger picture: if it were me, I'd get the A64
HL2 benchies showing the A64 2800+ > Sempron 3100+. The price difference appears small:
Newegg Socket754 selection. And that way you get 64-bit support for later.
edit: heck, or with the A64, you can download the 360-day trial of WinXP Pro 64-Bit from Microsoft if you're the adventuresome type
