Might be easier (and possibly cheaper, if one has or has access to
the necessary device programming equipment) to simply replace the FLASH
device with a standard UV EPROM of the appropriate size. I don't know of
anything other than shortwave UV light that can affect such a device's
contents under normal conditions.
An added advantage to such a conversion is that it is not possible
to write to a UV EPROM anywhere near as easily as you can a FLASH chip,
and it is certainly not possible to electrically erase and re-write the
UV device's contents.
This means that any virii which have the potential to affect the
BIOS will simply fail to do their dirty work if a UV-based chip is used.
--
Dr. Anton T. Squeegee, Director, Dutch Surrealist Plumbing Institute
(Known to some as Bruce Lane, KC7GR)
http://www.bluefeathertech.com -- kyrrin a/t bluefeathertech d-o=t calm
"Salvadore Dali's computer has surreal ports..."