Irvine, Calif.-based Sonnet Technologies has introduced
a processor upgrade
for Titanium-clad PowerBook G4s originally operating at 550MHz and 667MHz. The upgrade replaces the existing processor with a Freescale 7457 processor clocked at 1.2GHz, equipped with 512K of Level 2 cache running at full processor speed. The upgrade costs $499.95 plus tax and shipping.
The upgrade is performed by Sonnet itself, due to the complexity of the process. The company will install and test the new CPU before shipping your PowerBook G4 back to you. Sonnet claims 100 percent compatibility with existing hardware, software and RAM. It’s compatible with Mac OS v9.2 or later, including Mac OS X v10.4 “Tiger.”