on the cs5530 southbridge, setpci -s 0:12.0 52.b=ee setpci -x 0:12.0 5b.b= 0x20 (| with whatever is there) I am making this a general-purpose userland flash burner -- RGM Earlier notes from Ollie: Here is some utilities for using/programming flash ROM on SiS 630/950 M/Bs 1. flash_on, turnning on the flash writer enable for 630/950 M/Bs, you have to run this before load DoC drivers. 2. flash_rom, use your 630/950 M/Bs as a flash programmer for some flash parts. This utility is made as modular as possible. If you find your flash part is not supported, you can add a driver your own. Or sending me the data sheet. Ollie