We have 6 slots (3 banks), 2 bank ares pc2100 ECC ram with 512mb each. We just installed in the last banks 2 sticks of pc2700 2gb sticks for a total of 6gigs of ram, the board supports up to 12gigs of ram, I am stumped why bios can see all six gigs but windows only sees 3.9gigs.
Intel server board: SE7501HG2
Windows: Small business Server 2003
All Ram is ECC and certifed to work with the board according to intel