After 11 years it was time to build a new rig;
Up and running and tweaking...
[still running Arch+dwm on SSD for the moment...]
ASUS ROG STRIX B-550 install notes to self 07/06/22
0nly 1 RAM memory slot properly seated=16GB. Reseated second slot. Total RAM=32GB.
[slots are a bit finnicky-as usual]
BeQuiet CPU FAN in wrong FAN header. BIOS complained of no CPU fan. Now in correct CPU FAN header.
BIOS update to FEB 22. Note: I was trying to update the BIOS with the 'non wifi' B-550 version. Also, the USB stick has to be formatted FAT16/32.
SSD and CDROM not detected. M.2 memory slot made SATA 5/6 unavailable. Relocated SATA connections...now OK and bootable.
Dracula Pro configs to be tweaked...