Sam;
It's a great board, but it can be fussy. Before flashing to that Premium BIOS, check out this thread:
ASUS INDEPENDENT -- Troubleshooting, Setup, and Overclocking Help For ASUS Motherboard Users -> Flash any A8N board to Premium
There were some issues when guys started doing it. I remember, because I was tempted to do it at the time. These are pretty experienced guys at that site. I didn't do it myself because of what I learned there.
Actually, there is a pretty current BIOS for the Deluxe, #1805, and it's only a few months old. I'm running it on mine. You can get it at the ASUS site:
Version 1805 2007/07/04 update
Description A8N-SLI Deluxe BIOS 1805
Fixed Silicon 3114 RAID mode fail when using ASUS EN7950GX2 PCIE VGA Card.
File Size 483.44 (KBytes)