Same issue here
cpu e7500
corsair xms3 ram (1600 at 9-9-9-24 1.65v)
ati 5670
ocz 500w psu
the system runs fine on my pentium d 805
i've tried bios revisions F1 and now F10 usinhb the e7500 and same problems as described above by others. i've tried every possible conceivable combination of memory sticks (none, 1 stick, 2 stick, all possible slot combinations).
ive tried ripping everything out except the atx and cpu power (including cpu fan of course)
have tried reseating the cpu over 20 times
ive tried it out the case, in the case, back out the case, back in the case, out the case and back in again.
ive tried resetting bios. booting with the d805 chip, numerous different bios settings, then putting in e7500 and nothing.
all in all ive put about 20 hours into trying to get the e7500 working and its now down to sending the processor back (at my cost no doubt) or sending mobo back, which seems to have fixed it for others. either way, im super pee'd off!!!
ideas?