Skip to main content

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.

196 Questions View all

PowerMac Wont Boot at all?

Hello, I bought this Powermac G5 Used and it didnt come with a Graphics card, Ram or a DVD Drive, would any of those items stop the mac Powering on? When i switch the power on i hear One Click from the Power Supply? I'm guessing this is a good sign but when i hit the power button nothing happens, no Fans, no lights nothing. Could any of those items missing cause the mac to not power up?

Answer this question I have this problem too

Is this a good question?

Score -1
Add a comment

1 Answer

Most Helpful Answer

The machine will not boot without RAM but you should get beeps. See if the PRAM battery has been removed and hit the reset button on the mother board.

Also refer to this question for how to test the power supply: How can I check if the power supply is broken..

Was this answer helpful?

Score 1


There is a pram battery inside the computer, i have just check and i hit the reset button with i assume is the one below the lowest RAM Slot? then plugged it all back up and hit the power button and i still dont get anything. any more suggestions?


Next I would reset the SMC, here's how to do it:



To reset the SMU on a Power Mac G5

1. Turn off the computer by selecting Shut Down from the Apple menu or by holding the power button until the computer turns off.

2. Open and remove both the metallic outer door and the inner plastic air deflector.

3. Remove the fan assembly immediately to the left of the processor module.

4. Press the SMU reset button on the logic board.

5. Replace the fan assembly, air deflector, and outer door.

6. Turn on the computer.


Add a comment

Add your answer

Aaron will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 0

Past 30 Days: 0

All Time: 1,573