"I’m running the r5 3600 and decided to update to 4007 from 3103 (unstable with occasional bsod). So far it’s been pretty good and I no longer get cpu temp spikes with the ryzen power plans like I did with 3103. Mt in cinebench r23 went up by 100 and max temp didn’t change."
So things look great. I can do various synthetic benchmarks and run games without any issues whatsoever.
The problem I am experiencing is once I shut down for the night and turn the power off to the computer, when I come back the following and attempt to start the computer, I get an immediate hang at post, the video card displays the model details and then no BIOS screen. I have to press the power button to shut down. On restart, I can sometimes get the machine to post. When in windows, I start to see failing USB errors on devices that work perfectly well on 3103 BIOS.
On BIOS flashback to 3103, all the problems disappear.
I did think it was a problem with my XMP profile so I resorted to default settings and the issue still exists.
So what's the deal here, is the 4007 BIOS actually only for Zen 3 or is there an expectation all Zen versions can use the BIOS?