I wanted to join the club and share my problem with you
my first board and CPU died after a while suddenly while gaming. OC was done only for 4.4GHz @ 1.15V,
So I got my replacement (CPU + Board) on Sunday and was able to put the system together. Everything was working perfectly, so I could oc the CPU to 4.6GHZ @ 1.252V and started the stress testing.
After an hour of AIDA64 (CPU test +FPU test +Cache Test+ RAM test+ GPU test) the cpu temp was ~80°C max with EK monoblock. So I stopped the test and just in the moment I was stopping it the system shut down.
By powering the system again I could only see Asus q code 00 -> which means either the CPU or the Board didn't survive. But after a night of completely unpowered the system was able to boot and run but not for that long, it shut down again and I was not able to boot, maybe by chance after hours of being unpowered. And there is a kind of noise when I try to power on the board, like there is some cap blown up or kind of shortage noise.
So meanwhile I have a 3rd M7I board tongue.gif (which I bought parallely) and the CPU works well on it. The system contains at the moment only board, cpu, ram and SM951.
What I have seen is that the temp of the VRM on the board is freaking hot ~50°C while idling. Even more during short stress testing (at the moment only Intel stock cooler mounted) peaking up to 57°C in very short time. Placing a 80mm Noctua fan directly blowing on the board VRMs lowered the temperature to~40-43°C.
One thing I observed was that the board VRM controls is set automatically to extreme. So I changed it to balanced (fix setting in BIOS) this lowered the temperatur of board VRM by additional 10°C. -> ~43°C w/o fan or ~30°C with fan.
Today I will try to mount some more powerfull cooler in order to better stress test the CPU and board... before I mount the mono block again.
So the question now is what causes the board to die? This occurs only while stress testing / high temp condition.
Did some else have seen an issue of blown up VRMs on M7I due to the temperature?
PS: one more thing is that I was running the SATA cable between the board and the tray. Maybe that creates a lot of pressure causing the shortage.