![]() The 60G (1.2Ghz) “Early 2004” model and all the “Late 2004” model ibooks (1.2Ghz/1.33Ghz) and Mid 2005 (1.33 and 1.42Ghz) have different logic board (built in airport extreme)- but they still have the fault – even models with the new logic boards are affected! The “Early 2004” (1Ghz) models up until Oct 2004 have the same motherboard. ![]() The original 2003 ibook G4’s (800/933/1Ghz) have the fault. In fact the powerbooks from this era are a great design, the 15 inch Aluminium G4 powerbook is one of my all time favourite macs – I still have one. Thankfully the Aluminium power books don’t have the problem. The results are here and it appears that every iBook model can develop the blank display problem. I conducted a survey (thanks to over 300 readers who participated!) to see which model g4 ibook had the problem. ![]() ![]() This article describes the problem and how to repair it. You might think it is a problem with the display but it’s actually a problem with one of the chips on the main motherboard. It can appear after a year or more in some machines and the symptom is that after being on for a few minutes, the screen goes black (it looks blank, but the light has gone off), the fan turns on, and the computer freezes. There is a problem with the logic board in the Macintosh G4 ibooks. ![]()
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