Hey guys,
So i had the same problem happen to me again when i changed GPU earlier this week, and while my RAM was still manually setup. After a long and complicated troubleshooting i finally managed to find out the real root of the problem: an incorrect fixation of my nvme ssd. Cold boot was linked to the fact that when cold the connection between the ssd and its slot was improper, but after a few seconds the ssd had enough time to warm up, which would make it expand a tiny bit, and it would be enough for the connection to be proper again.
So after i removed the SSD and put it back again with special care, the problem went straight away. This is probably because the fixation system for the nvme ssd on the Z370 ftw is not very secure: there is no locking mechanism from the socket side of the nvme port, so when you try to install an nvme SSD in the motherboard in this slot when the motherboard is already seated in a vertical position in the computer case, gravity makes the SSD fall down a little from its socket even if it's fully inserted. So it's actually tricky to put it perfectly right and if you dont pay attention without knowing this detail it ends up falling down every time a tiny bit compared to a perfectly seated position.
When i put it back knowing this i actually had to do it almost literally 10 times before getting it perfectly right.
The Z370 ftw manual actually has at page 30 a special section talking about how to properly connect an nvme SSD, i suspect this might be linked to this problem. I have read this before but i didn't suspect it would be the root of the problem because my computer was working properly apart from this. Nothing indicated that the SSD had a problem in the normal operating of the computer. The only hint i got was one time when the PC had problem booting, i was able to go the bios and saw that the SSD was not detected, but that must have been a 1 time thing in perhaps 50 or more cold boots bugs before because usually the cold boot bug didn't allow me to see what was in the bios most of the time it happend.
Which means this problem all began when i first installed my new nvme ssd 2 years ago and i've been dragging it all along for all this time. It was very confusing than changing some unrelated parameters in the bios like the ram made sometimes a change, which made the troubleshooting even more complex. But i'm happy that everything is in order now.
I hope this can help some other people who might encounter similar problems in the future to not spend as much time as i have to fix this pain in the *** problem xD
post edited by Neutro - 2023/04/27 19:11:06