I have tried multiple things to get my pc to consistently cold boot (system fully powered off for a day) without locking up with no success. Setting pci-e from auto to gen 4 or 5, nvme from auto to gen 4, not undervolting at all, multiple BIOS versions etc.. couple things i have noticed that tells me its going to fail at cold boot.
- 1. When I push the power button, only the CPU fans start right away.. case fans dont spin up at all. It gets passed the bios screen where the circle spins showing windows is loading.. There is then an audible "click" (like a relay being tripped) and then the case fans come on. Its like the motherboard is not outputting correct voltage (or voltage at all) to 12v, 5, and 3v. When it does cold boot, that audible click happens almost instantly and both the CPU and case fans spin up right away.
- 2. When it fails to cold boot, the LED's on my keyboard and mouse will turn on at the bios screen, shut off for a moment, then come back on while the circle is spinning showing windows is loading. They will then shut off and shortly after the circle stops spinning and the system just locks up. I then have to push the reset button and 9 out of 10 times it will then boot fine. sometimes It will lock up again and 2nd reset will boot.
When my PC
does boot, i never have the issue with PCI-e being locked at 1x or any system instability. "If" it boots, it just works...
Also, I have tried different power supplies (both a Corsair 1000w and Seasonic 1000w) and 2 different ram kits and its the same problem...
System:
9800X3D
MSI x870e Carbon
Kingston Fury 32gb kit
Nvidia 5070 ti (also tried a 3080 and same cold boot issue)
Corsair 1000w power supply
Samsung 990 Pro, 2 Samsung 990 Evo Plus
Wonder if people are experiencing this with other x870e boards from Asus, Gigabyte, Asrock, etc.. All i know is I cant recommend the MSI Carbon due to this issue