The iMac G5, powered by the PowerPC G5 processor, was originally released in 2004.

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Blank screen immediately after start-up.

Screen goes blank after 10 mins of use, now it doesn't come on. I tried SMC reset, no joy. Took off cover & have LEDs 1-3 illuminated green, LED 4 not illuminated. What could it be, video card? Both fans are working. I read somewhere that there was a recall on this machine b/c of this same problem, has anyone heard of such a recall? This is the 4th time since '05 that this has happened. Looking for some advice, thanks.

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Here is a link to an Apple troubleshooting guide. Hope it helps. Ralph

http://support.apple.com/kb/TS2094

You can read mayer's explanation of the LED lights on this link. Ralph

iMac screen stay black (logicboard issue?)

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nice reference +

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