Jean Parrot -> Ross Cassell said..

 JP> Manufacturer    Acer
 JP> Model    F672CR
 JP> Version    R01-B1

 JP> The only way you can get beyond the e2140 that comes stock is to get the
 JP> mobo jumper settings from acer to unlock the f672cr's bios and upgrade
 JP> from the ro1-a3...to the r01-b1 bios.

Where did you get the above text?  Sounds like you had a dialog with Acer
support?   Is their cost for the "secret" jumpers settings worth
the extra 1gb?

I did a basic "acer m1610 f672 jumper" search and found several
possible leads.

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