After 5 years serving the vintage Apple enthusiast community, ThinkClassic has been marked for closure and is now in caretaker mode. Please see this thread for further information. Please direct any questions, comments and enquiries about the website, management and ownership to this thread.

You are not logged in.

#1 2016-07-28 02:13:57

From: North S.F. Bay Area, CA
Registered: 2014-05-23
Posts: 600

SE/30 Logic Board Has "Bong Loop" Syndrome...


I have an SE/30 logic board, which I have recapped. However, it seems to be stuck in a reboot loop, bonging about once per second.

Anyone have any ideas? I suspect a rotted trace somewhere, but I don't want to reinvent the wheel by testing a million traces, so if anyone can tell me EXACTLY which ones could be causing the problem, I'll attempt a repair.



Main Macs: Early '09 Mac Pro, Mid '12 MacBook Pro 13"
Secondary Macs: Early '08 Mac Pro, Mid '12 MacBook Pro 15"
Playthings: Mac SE/30, 3.0 GHz Mavericks-based HackServe, Many others....
Desired: Lisa, Kanga PowerBook G3, Apple IIc, Apple II, Spare parts, etc.


Board footer

About ThinkClassic

ThinkClassic specialises in the use, maintenance, repair, restoration and modification of vintage computers and peripherals.