Arjy & Rev1;
I would highly reccomend any Maximus owner go and Thoroughly
read through ALL of the following two threads:
Turn Your Maximus into a Rampage
Maximus Formula OC and BIOS database & Info Thread
The second one is quite long, but the first page lists direct links to all the BIOS revs (Beta and official) and the pros/cons everyone has encountered for each one (ie some work better than others for quads or Penryns)
also there are standardized settings for pretty much every cpu/RAM combo you could ever need.
Hope this helps both of you guys.
Oh, PS Welcome to OCN Arjy
and I wouldn't RMA your E8400 just because of the BIOS issue, just get the rev you need and stick it on an USB, boot to that and flash from within BIOS, dead simple to do.
Do not listen to the NewEgg reviews that say you need an older 65nM s775 cpu
You do not.
For all the info on not
Frying your e8400 (overvolting) and other nifty secrets; check Linskingdom's Penryn 45nM Thread
Again, you'll find loads of links to other threads on the first page.
Good Luck to you both -We'll be expecting some Screenies!