Quote Originally Posted by Raja@ASUS View Post
Full validation of 4GB DIMMs may not be possible as the X48 chipset was designed around 2GB DIMMs at stock VMCH - so timings and frequency may be too conditional to validate in accordance with current 4GB DIMMs. I will take a look at the Intel white papers and see what the supported timings and frequency stipulations are for 4GB DIMMs on this now dated platform.

-Raja
Thank you,

I think you will not have much luck with Intel White Papers as a lot of these were conceived before 4GB DIMM production was even around.

Theoretically X48 can address upto 16GB of RAM (and some users have already provided proof of 12GB and 16GB running on their Maximus Extreme and Rampage formula Boards).

The issue lays in that ASUS' Memory QVL for the Rampage Extreme is woefully old and needs a radical update.

Also BITS (www.biosbits.org) MSR errors have been reported by myself and at least 4 other forum members, any ideas as to if/when these will be fixed for ultimate platform stability?

Thanks

John