Hi all, hopefully you can help me with this issue. I'm running an R4E with a 3960x. The system has been booted and run succesfully for a few weeks now. Recently I started tweaking it more to get a few more Mhz out of it. After adjusting the CPU current capability(from 100% to 120%), I noticed in core temp that my cpu throttled back from 100 x 48 to 100 x 33, the temps dropped down about 6c(from 80c on the hottest core to 74c) and then the whole system shutdown. After attempting to restart the system I had no reaction to powerbutton. No fans, no post codes, the start and reset buttons on the motherboard continued to light up however.
I unhooked the power supply from the mobo and tested it first, it started up fine. I tried using a different power supply with the system but it again would not start up(psu fan clicks on a very brief moment then off again) I can't make ROG connect work but I can use the OC key to see the OSD Monitor, but the info isn't very helpful. I tried switching between bios 1 and 2 and clearing cmos. I also tried using BIOS Flashback from a thumb drive, the indicator light seemed to show it was successful, still no post.
After trying a number of other things(removing all but one stick of ram, swapping sticks, swapping different power connectors and supplies) I found that the system would at least stay powered on if there is no power to the cpu connectors. In this state, the OC key monitor predictably shows it stuck at CPU initializing. I unfortunately do not have another lga 2011 mobo or cpu to try mix/matching to see what died(if one of these two is indeed what died).
What seems to be the most likely problem?