[LinuxBIOS] W39V040BPZ or vt8237. Flashing problems.

Corey Osgood corey.osgood at gmail.com
Fri Sep 28 23:28:15 CEST 2007

Adam Talbot wrote:
> Have three motherboards running cn700, VT8237 chips set.  All three
> boards have W39V040BPZ bios chips.  I can not program them with
> flashrom.  Flashrom see the chip as W39V040B.  Flashrom start on the
> flash and just sits there.  When flashed with the -V option I can see
> the memory address is not changing.  But, big problem is the fact that
> the chip does get a bit flashed, as, I can no longer boot. So there is
> something happening. 
> Looking at the data sheet for the W39V040B, all the PZ gives me is the
> PLCC package and lead free. So, is this a problem with the vt8237 south
> bridge?  Where should I go to start debugging?
> -Adam

This is the jetway board? Hop into the factory BIOS, under
Miscellaneous, and disable "Flash Write Protect". I've been flashing
mine with the exact same chipset and flash part for months now, without
any problems.


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