In the previous post I was talking about how my CPU overclock has become unstable and that I was trying everything to make it stable again. After many runs of stress tests using Prime95, I settled for 1.4V Vcore in UEFI and started stress testing. No thanks to the huge VDroop this motherboard has, I had to set such a high Vcore. But in reality, the CPU was only getting 1.336V. This is with LLC level 3.
So I let Prime95 run overnight and went to sleep. Unfortunately after about 6hrs of stress testing, it had crashed with a BSOD with code 0x124. It requires more volts it seems. I wonder how I could get by with just 1.320~1.328V the last time. It definitely must have been the lack of AVX.
So I raised the Vcore to 1.405V in UEFI and came to work, letting Prime95 run while I was at work. It's been about 4hrs 15min and still it has not crashed. Seems like I will probably be able to make it completely stable in this go or at least the next. But what I don't get is, even at LLC level 3, there is a massive VDroop. Either everyone else is lying or they have very high tolerance. They don't seem to imply the VDroop is that high with LLC2 and LLC3. I'm not sure if this has always been the case with this board. Without using the fixed Vcore mode, you really cannot see the VDroop. And I've been using the Offset mode all this time.
I just hope that this will be it. 12hrs of Prime stability is good enough for me. This CPU must be a bad clocker. I mean, I bought this CPU second hand but unopened. Someone must have bought a batch of these CPUs and since the ones he tested weren't good clockers, he has returned the whole batch. I guess that's the only way I could have gotten an unopened but used CPU.
