A replacement logic board for the 550MHz (Onyx) PowerBook G4 (Gigabit Ethernet) is about $275 to $300 and the PMU is, in fact, integrated onto the logic board of this machine according to info I have at hand. As for the replacement AC power adapter, I like ours best, of course. Go to http://www.mcetech.com/products.html then click on the AC Power Adapter link in the PowerBook G4 products section. Best Regards, Arnie Ramirez MCE Technologies, LLC http://www.mcetech.com 949-458-0800 949-458-1803 fax On Nov 27, 2005, at 2:28 PM, John wrote: Well, I think my power brick is about to die on me - the connector strain relief has split, and it's frayed/shorting $75.00? Also, my 550mhz PMU is on the fritz - after getting a new (free, within warranty) replacement battery, my powerbook charges up to 20% - then jumps to full. Conversely, it discharges from 100% to 60% then to 0%. $????.00 I have tried everything short of a reinstall of software (running latest version of Tiger) for the PMU - Open Firmware reset, PMU reset, etc... I take it the PMU is integrated into this version of the PB? So, for the power brick... Any brands recommended? I like the straight plug. And the PMU... Is it integrated into the logic board on the 550 Ti? Thanks! John Pariseau _______________________________________________ Titanium mailing list Titanium at listserver.themacintoshguy.com http://listserver.themacintoshguy.com/mailman/listinfo/titanium Listmom is trying to clean out his closets! Vintage Mac and random stuff: http://search.ebay.com/_W0QQsassZmacguy1984