Powerbook G3 Pismo-Bad Logic Board?

Hi. My powerbook G3 pismo suddenly refused to work last week. It chimes at startup, but then only gets the "grey screen." I took the hard drive out and put in in an external enclosure......it's fine. I took out an extra RAM chip I had added a couple of years ago....still no go. I have attempted to access the disk in Target Disk mode...no go. I've also tried to start up from a different startup disk by pressing the option key at startup...still no go! The Apple Hardware Test CD that came with my Pismo never gets past the "loading....." stage. I am writing in hopes that someone can tell me what the problem is. I'm assuming it's the Logic Board and am ready to purchase a replacement off Ebay, but would hate to buy one if someone thinks or knows for sure that it is not the Logic Board. I guess what I'm asking is this......What exatly happens when your Logic board fails? Are the symptoms similar to the ones I've described above? Thanks in advance and hope someone who's had this problem can help!

iMac G4 1 GHz, Powerbook G3 Pismo Mac OS X (10.4.9)

iMac G4 1 GHz, Powerbook G3 Pismo Mac OS X (10.4.9)

iMac G4 1 GHz, Powerbook G3 Pismo Mac OS X (10.4.9)

iMac G4 1 GHz, Powerbook G3 Pismo Mac OS X (10.4.9)

iMac G4 1 GHz, Powerbook G3 Pismo Mac OS X (10.4.9)

iMac G4 1 GHz, Powerbook G3 Pismo Mac OS X (10.4.9)

Posted on May 13, 2007 9:18 AM

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Powerbook G3 Pismo-Bad Logic Board?

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