Model M6497 or A1005 / 500, 600, 700, 800, or 900 MHz G3 processor

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The screen is dead dark.

Screen is dead and I think it might be the grafic-video card. I cannot see my desktop on an external monitor, but I can see my hard disk on another Mac when mine is pluged in through a fire wire cable.

Is it really the grafic-video bloc-card or the screen it self that is dead?

Can you help me with the diagnosis and can I repair it myself?

Thank You

Richard Gravel

Montreal, Canada

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2 Answers

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Since you can't see video on an external monitor I fear you have the dreaded logic board video chip problem. You can find out all about it by googling iBook video including what some have done to repair their boards. I think however the best solution is either a pofessional repair or replacement of the logic board. iFixit sells boards for most iBooks. And yes you can replace the board yourself but I would caution you to read the instructions carefully twice before starting as there are a couple places you can do great damage. Good luck. Ralph

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This is my .02. I always recommend getting a second opinion before spending that kind of money. Ralph


Hi Ralph, Thank you very much for answering so fast. Yes the repair seems to be quite delicate, I just looked at it on the site. I'm waiting for some more comments and answers to order the right parts and start the repair myself. Richard


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Salut Richard, Je suis d'accord avec le diagnostique de Ralph. Tu es une des multiples victimes du problème de carte graphique des iBooks G3. Tu devrais considérer le remplacement de cet appareil qui n'est pas des plus récents au lieu d'investir dans une technologie devenue obsolète et limitative. Mais si jamais tu décides de remplacer la carte mère de ton iBook tu peux me contacter pour des conseils. J'en ai déjà remplacé plusieurs sur des iBooks G3 et G4.

Mario Lemerise, Baie-St-Paul, Québec email:

I agree with Ralph, another victim of the iBook G3 desoldered graphic chip.

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Richard Gravel will be eternally grateful.
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