simple rule, quality hardware is compatible with quality components.
normally now a days Mobo manufacturers are putting on their websites (i dont know about all, but Asus does) the QVL - qualified vendor list of Memories.
though out of their lists memories can be as well work.
Intel Core2Quad 2.66Ghz 12MB L2-Cache
4096MB DDR Kingston Hyper-X
XFX 9600GT AlphaDog
Seagate 2 X 320GB SATA2
LG L246WH Flatron 24"