After some perhaps jumpy but not excessive ocing, my board gave the message the system board did not support the cpu, even though they have been working harmoniously for about a month now. I have switched all the parts out and tested and still I get no post or keyboard activity upon power on. So I am thinking it is the mb, but before I go through the hassle of getting and setting up a new mb, I thought I would ask you guys a few things. First, I can disconnect everything except for the cpu, vc, and mem and should still get a bios right? And even if the vc was faulty I would still get the num lock correct? Second, I recently upgraded my comp, and to test parts have pretty much completely reverted back to my old system (pd 2.8, x700, same mem and mb), and nothing happened, so am I right in assuming it is the mb? Thanks for any help guys. Oh yea, everything powers on fine including the mb, no beeps or anything, but I get nothing on the top end. And also the aforementioned oc was not very high at all, only 377fsb, with no voltage or mem freq increases. However, I had been jumping around a bit, not using the steady procedure I should have. I did play with the voltages a bit, at one point I increased the cpu vcore by .05 and the fsb vtt to 2%, but those settings were not in effect for the apparent deathblow.