Yinghai Lu wrote: > On 9/14/07, Howard Chu wrote: >> Hi, was wondering if anyone else has been tripped up by this... I've got 4GB of >> RAM in my Asus A8V Deluxe and memory hole mapping enabled in the BIOS. By >> default, my system boots up with these MTRR settings: >> >> reg00: base=0x00000000 ( 0MB), size=4096MB: write-back, count=1 >> reg01: base=0x100000000 (4096MB), size=1024MB: write-back, count=1 >> reg02: base=0xc0000000 (3072MB), size=1024MB: uncachable, count=1 >> reg03: base=0xc0000000 (3072MB), size= 256MB: write-combining, count=1 > > BIOS should have another setup option about MTRR (continous?) > then you could get > >> reg00: base=0x00000000 ( 0MB), size=2048MB: write-back, count=1 >> reg01: base=0x100000000 (2048MB), size=1024MB: write-back, count=1 > reg02: base=0x100000000 (4096MB), size=1024MB: write-back, count=1 > ===> if you have rev E...instead of rev F. Thanks for the reply. Unfortunately this BIOS doesn't seem to have any other options related to the MTRRs. I guess I'll just live with this hack. -- -- Howard Chu Chief Architect, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/