The PowerMac G5 is a desktop computer first produced in 2003 by the Apple Corporation. This guide will review the repair process of an Apple PowerMac G5 model number A1047 EMC 2061 from 2004. It was discontinued in 2006 as part of the Intel switch first to developers then consumers.

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Stuck on Apple loading screen with the fans running at full speed

Hi Guys

I recently installed new ram into my power mac G5 and it is having trouble booting up. After installation it booted up fine but the ram had not registered on the computer. I moved the cards around following all the correct RAM procedures (installing in pairs, working from the inside out, etc) I got to log in and it was on maybe 3-4 mins before I got a panic kernal(fans started to speed up to the jet engine stage) telling me to shut down the computer and I did. Now I am unable to log back in. It stays on the apple loading screen with the rotating gear. After 3-4 mins, the fan inside the computer starts to speed up to a very high speed and I turn the computer off for fear of breaking the computer. I have tried Safe Boot but I cannot get passed the loading screen. I reset the PRAM but to no use. I tried the sbin/fsck-fy command but it was telling me that the command was an invalid length. Your help on this matter would be great!

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Go back to the old RAM. RAM can cause kernel panics - so can damaged files due to crashing (force quitting the machine). Try to boot to your install CD/DVD and use TOOLS (do not reinstall OS) to verify your HD is not damaged.

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