April 6, 1999
by Stephen Hildreth
Editor-in-Chief

Thanks for the feedback to our article,"Upgrading Your PowerBook." Our readers filled us in on some other PowerBook upgrade paths.

From reader Frederick L. Dick:
"I recently upgraded my PB3400/240. I used DT&T Macintosh Services (http://www.dttservice.com/) and they swapped out the logic board for an original PBG3/250. The additional RAM in the 3400 was salvaged so I ended up with 64MB of RAM and 2MB of VRAM, not to mention a faster bus and CPU. The cost was $700! Even if there were an upgrade available, like with the 1400/2400, I figured it would still cost around that much. The service was excellent and I highly recommend DT&T Macintosh Services."

From reader Dean Shavit:
"The current crop of Powerbook G3s do have processor daughtercards and are absolutely upgradeable. Just because these upgrades are not yet on the market does not mean they won't be once Lombard is released. I'm sure Newer and Vimage are chomping at the bit waiting for the go-ahead from Apple. If any model of powerbook was ever upgradeable, the Wall Street model is. . . for about eight different configs, there's only two distinct logic boards!"

From reader Robert Hershoff:
"Another source for heavy duty power adapters for the PowerBook 1xx series is BTI Technology. BTI makes a mini-adapter, half the size of the standard Powerbook adapter."

Do you have any other upgrading ideas?