Core 2 Duo cpu/MB's do not support TRIPLE channel, but some of the newer MB's for C2D do support DDR3 in DUAL channel. I didn't check the specs on that MB but from what others have said it supports DD3. If that is true, then triple channel DD3 will work BUT:
1 - If you insert an odd total number of sticks (1,3,5) it will only run in single channel - unless of course it is an i7 setup. Preferably you should insert even numbers (2,4,6) for it to run in dual channel.
2 - The voltage limits for triple channel DDR3 are generally lower than dual channel DDR3. Make sure you don't send too much juice to em.
EDIT: All things considered, even tho the Triple channel will plug in, you are probably better off to go with Dual Channel.