* ron minnich rminnich@gmail.com [070528 20:22]:
Hi Dieter, your problem is indicative of one of several possible issues.
IIRC this part is one of those combined FWH/LPC parts. Can you verify this on a data sheet?
I have the very same problem on my 855/ICH4 based machine. I use a pmc4 as well, or the native SST49LF004B. Same game with both parts.
Either the ICH4 code is not working, or the mainboard has additional protection. I don't think it is the flash part.
I read a very enlightening chapter in Darmawan's BIOS Ninjutsu book. It describes how bios protection works these days.
The bios flasher puts a signature somewhere, then puts the system to S3 state. The system wakes up again, sees the signature and leaves the bios unlocked. This way it is easily possible to set all parameters to lock down and still flash the bios with the right program.
Now, what do we do. I don't want to be a reenigne esrever, but rather engineer straight forward solutions ;-)
Stefan