I prepped a version 1.2 today for TSOP flashing. Everything went well, I flashed Evox M8 BIOS to it and set up the disk with the latest Hexen disk.
A little later, I decided to flash Cerbios 2.3.1 to it and I chose UDMA4.
This is a stock hard drive, so when I would boot up, it would give me an error 13 code....then boot me into Cerbios Safe Mode. No problem, the TSOP wasn't ruined or anything, so I was able to re-flash it, this time with UDMA2. The things you learn....
I'm just going to put this console on the shelf for now until I'm ready to do the rest of my mods. I plan on using UDMA5 with a cheap IDE-to-SATA adapter that I've used successfully on three other TSOP'ed machines.