Hi, Are you the same person who was asking this on IRC in #PIC the other night? I don't know much about writing to BIOS except that it is extremely dangerous. I don't quite get why you would like to take such a risk just out of curiosity. Besides, motherboard manufacturers give away perfectly good BIOS flashing tools. The only people I could imagine having an interest in this are people writing harmful virus's. I'm sure you are not trying to do this for illegitimate purposes but I'm sure you can see how I could come to this opinion. Regards, David Stubbs WEB: www.nti-uk.com TEL UK: 07968 397782 _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu