The following is supported and you would want to make sure that you have the latest bios.
PU963 Presler 935, 3.2GHz, 2X2MB, 800FSB, D0
DU362 Conroe E6300, 1.86GHz, 2MB, 1066FSB, L2
DT893 Conroe E6300, 1.86GHz, 2MB, 1066FSB, B2
DX485 Conroe E6320, 1.86GHz, 4MB, 1066FSB, B2
DX483 Conroe E4400, 2.00GHz, 2MB, 800FSB, L2
KN977 Conroe E6400, 2.13GHz, 2MB, 1066FSB, B2
DU361 Conroe E6400, 2.13GHz, 2MB, 1066FSB, L2
DX484 Conroe E6420, 2.13GHz, 4MB, 1066FSB, B2
KU345 Conroe E6600, 2.4GHz, 4MB, 1066FSB, B2
PN416 Conroe E6700, 2.66GHz, 4MB, 1066FSB, B2
HU585 Kentsfield Quad Core Q6600, 2.4GHz, 8MB, 1066FSB, B3
UP673 Kentsfield Quad Core QX6700, 2.66GHz, 8MB, 1066FSB, B3
WM543 Conroe XE X6800, 2.93GHz, 4MB, 1066FSB, B2