info-mac@uw-beaver (info-mac) (09/21/84)
From: Thomas.Newton@cmu-cs-spice.arpa
More reason to distrust the "Press Release for the 512K Introduction" (which
claims the only difference between 128K and 512K boards is the memory chips,
as well as claiming that Consortium upgrades don't include Draw/Project):
#: 107399 Sec. 5 - Mac/Lisa Hardware
Sb: #107362-MAC UPDATE TO 512K
18-Sep-84 22:50:00
Fm: Bill Atkinson 75106,263
To: Bennie Warren 75066,775
Bennie, just unsoldering the 64K chips and soldering in 256K chips will not
work. The upgrade consists of an entirely new printed circuit board that has
been fully tested and burned in at the Mac factory. The new board has several
new traces and a pad for a new PAL chip used for address decoding. I would
advise you to get the real thing from Apple.
enjoy your Mac, Bill Atkinson