ive got a pair of 16fd3 and 16fd5 . they run great . as individual pairs ,i had em up to 1170mhz could go further im sure.
but put em together for 4x1gb ,no way! wont even boot. sticks on c1.
i tried two boards ,wont boot up as 4gb.
not sure why , there pretty much the same ram. and i tested each module there fine.
any ideas? or has anyone matched these?