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Power supply roulette

mdmewborn -

iMac G5 20" Model A1076

iMac G5 20" Model A1076 Power Supply Replacement

Moderate

Mein Problem

Computer wouldn't start up. Did diagnostics which pointed to bad power supply. Tried over and over, but kept shutting down after a few seconds or wouldn't start up at all.

Meine Reparatur

Replaced the old power supply with the new and computer started right up...and ran for about 5 minutes! Restarted. Same results. Tried it over and over. Same results. Runs for 2 to 5 minutes, then shuts down. Removed new power supply and replaced it with the old (defective) power supply. Started right up and has run ever since (about 20 hours). I actually have 2 of these computers. I replaced the power supply on the other one last year with no complications. Your replacement and posted instructions worked perfectly.

Mein Rat

Repair was very simple. I followed the instructions you provide on the web site. Can't explain what happened.

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