Messages in this thread | | | From | "H. Peter Anvin" <> | Subject | Re: Flash BIOS under linux | Date | Fri, 2 Apr 1999 03:54:50 -0800 (PST) |
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> > Just make sure yours really do! It does work, but you get no video, > > nothing while it does its thing. > > The motherboards that I've seen, have a jumper that allows writing to > the only-boot-floppy-to-reflash part. > > When I've had to upgrade my BIOS, the official dos-program said it > wanted to write to the "dangerous" part, and required me to move the > jumper.
The jumper usually prohibits writing to all or most of the BIOS flash; some machines use part of the flash to store configuration data which is probably what can be touched without it.
The unflashable part is a hardware feature of the EEPROM chip I believe.
-hpa
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