B840M DS3H crashing only on cold boot
Hi, as the title says, I’m having a pretty annoying cold boot issue. Basically, the PC works perfectly fine with full performance (I ran several performance tests multiple times and everything is within average/expected results), but for some reason, somewhere between every two days to two weeks, the PC crashes when I turn it on after it has been shut down overnight.
I ran MemTest86+ overnight twice and several OCCT tests, and nothing detected any performance or RAM issues. I’ve also reseated the RAM sticks around 5 times at this point.
I’ve been using the last three BIOS versions — F9, F10a, and F10b — and I have the same issue on all of them. Right now I’m testing F7 because I think it’s the most stable one so far.
Is this a common issue, or is there something defective with my PC? Is there anything I can do to fix it?
Everything I tested and passed without issues:
- MemTest86+ overnight
- OCCT tests: Power, CPU + RAM (Large data set, Extreme mode, Variable load type), Linpack 2021
- Cinebench 2024, R23, and FurMark for stress testing
- 3DMark Time Spy, Nomad, and Unigine Superposition to test the system
System:
- RTX 4070 Super
- Ryzen 5 7600
- 32 GB Fury Beast DDR5 5600 MT/s
- B840M DS3H
- Gigabyte UD 1000W 80+ Gold