Transintl sent two of their new design low-profile 512MB SODIMMs on loan that I've been running in my PowerBook G4 since Saturday. The PB G4 had the 4.1.8 firmware update applied some time back and both modules are recognized by both OS 9.1 and OS X (see screenshots). I've had no problems of any kind running these under either OS version.

(OS X on 1GB PB G4)

The image below shows a size comparison between my 256MB module and the new 512MB module.

To install the dimm in the lower slot, you have to temporarily lift out the keyboard support bar (it's just a slip fit).

The photo below hows both 512MB SODIMMs installed and how close the fit is on the upper slot due to the location of the support bar.

Pricing and Availability: For the latest pricing, see Transintl.com and OWC's specials page.

Other PowerBook G4 Related Articles:

Photoshop Performance Tests: I've posted a page that compares PShop performance of the PB G4 to other Mac models and even a 1GHz Pentium III system.

My First Impressions: Article with my first impressions on the TiPB. It also includes tests with the original 10GB (IBM in my case) vs a 20GB IBM hard drive and some simple Airport range tests.

OS X on PB G4: My tests, tips and impressions on OS X running on a PB G4/400.

PB G4 Owner Comments: My original page on owner feedback, issues/tips and accessories.


• PowerBook Screen Protector

See the Systems page for other site PowerBook reviews, articles and upgrade guides.