got one XP1700+ @ 2.26ghz that's been in SMP before without issue and tested upto 2350 in the dually board in single mode...and one XP2100 i bought that i L5 modded myself...the 1700 is bridge modded to 2.26 and pin modded to 1.85v...the 2100 hasn't been touched at all and pin modded for 1.85v...could the fact i forgot to pin mod the correct multi on the 2100 keep them from working in SMP? or should the board run in dual mode at the speed of the slowest chip.....or is my L5 mod bad? both chips were tested to work in a single board and i think i'll do that again just to make sure....any input greatly appreciated as i'd rather not re-plumb this bastard dual tower setup with 1/2" lines all over again....lol