its simple, if I up the Vdimm I will get hierg FSB speed cuz I have 2100 ram runnnig @ 141 FSB and before wiht my old 8HKA mobo I uped the vdimm to 2.7 V and I was able to run my ram @ 166 FSB. but the AK77-333 does that ability to do that on bios or jumpers, so I was thinking I could get a MOd to add voltage