First post, by zandengoff
I recently acquired a PCChips M571 3.2 and while the board is stable and working great in a test setup, as it came with one of the first bios revisions, I am in desperate need of a bios update.
I have acquired both the most recent bios and a hacked bios with extended processor support from this page http://cwcyrix.duckdns.org/techpage/html/m1.html
After booting into pure DOS on an SD to IDE adapter, I attempted to run the AMIFlash utility and it hard locked the machine. After downloading Uniflash, it proceeded to tell me that it could not detect the flash type and asked if I had protect mode on. Reading it seems like I have two options, find the chip type and try to use the force flash command in uniflash (yikes) or after finding the flash type look it up to see if it needs 12V to flash. There is a jumper on the board to switch from 5V to 12 V, but I don't want to switch it over without knowing what I am doing.
If needed the writing on the EEPROM is
H.T.
M21020
C9752
I am usually good at finding data sheets, but these numbers seem to bring up nothing in my searches.