Correct me if I'm wrong but didn't you say you had one random reboot with your old RAM too? I think if the RAM were the issue it would fail stability tests as they are supposed to put the system under a lot more strain than normal and bad RAM or an unstable IMC would give out errors whereas a faulty motherboard is different in my experience as it doesn't perform any calculations directly and can fail in intermediate or low load states.But it all started as soon as I put in this 8 Pack ram.
I had a 1700 and Corsair ram before this since launch. And I didn't have any of these issues. I put in the 8 Pack ram as I wanted 3200MHz on the ram and since then (1 month so far) I simply have not found stability.
I've even upgraded to a 2700x in the mean time and the story continues.
Either I have faulty ram or the ram isn't faulty nor is the mobo it's just that 3200MHz is a too much for the mobo to run the ram 24/7 stable.
It's really horrible when you have an unstable pc. Every second anticipating/expecting the PC to freeze saps the joy out of using it.
Currently the ram is stable running HCI. Only thing I changed last night after my freezing was the power profile to high performance.
If it doesn't make a difference :
1. I run it lower than 3200MHz and see if stable. But then what was the point in selling my corsair (3066MHz) and buying the 8 pack stuff if it cant run at 3200MHz.
2. Return ram as not fit for purpose. (bin only)
3. Upgrade to a CH7. This might not even solve the issue. And just throwing money down the drain.
4. Try this c6 thing.
Can't you RMA the board instead and get help from OCUK or buy a really cheap B350 as a test or buy the CH7 and resell or return if it doesn't solve the problem?
The C6 thing is merely a workaround to bypass the faulty power delivery on the motherboard, or at least it was in my case. Any working board and modern PSU should handle C6 easily, particularly if you are not overclocking.
I very much empathise with you, it was very stressful in my case too and I only upgraded to a new PC because my old PC had started failing. However, I hope I can save you some time as I think the motherboard is the most likely culprit. I assume you've tested PSU voltages as if it were that it would probably fall over in stress tests.