When I removed the CPU to reseat it, the thermal paste was hard and there wasn't much left on the CPU. The CPU fan does not work even with the right power. I measured the voltage coming from the CPU fan socket and the P4 connector which both read around 12.13V, which is in range. However, I might know what is causing this issue. I also tried booting with no cables connected to the hard drive and optical drive, which actually caused them to spin up/power on, but the Power Mac still did not boot. I then reseated the CPU and tried again but it still has the same issue. The red LED diagnostic light was on but no fans were spinning. I tried booting the Power Mac with no CPU inserted just to see if I got a different result. Update: I did some more work on the motherboard and decided to reseat the CPU. I’m guessing that the power supply would be the problem but they are expensive when looking on eBay so I wanted to know if there are any other things I can try first that could possibly fix the issue. I’ve even powered it on with no sticks of RAM in it to see if I’d get an error beep code, but the Power Mac still does the same thing. I have replaced the PMU battery and pressed the CUDA button and also tried different RAM sticks, but the Power Mac is still acting the same. I can also power on the Power Mac with an iMac G3 keyboard that has a power button on it, but I cannot use the same button to turn the Power Mac off. I know this because it will not boot to the.
#Mac g4 quicksilver mac os
The thing is, when I bought the machine, I dont seem to be able to use the Mac OS 9 CD that I got with the computer.
#Mac g4 quicksilver install
If I press and hold the power button the Power Mac does turn off. Im trying to install Mac OS 9 on my Power Mac G4, which is an MDD model, without FireWire 800, so it supports booting to Mac OS 9. There is no chime and a black screen as well. The hard drive appears not to be spinning up when the Power Mac is on. The red diagnostic light on the motherboard lights up when the Power Mac is on. All the fans except for the CPU/logic board fan spins up. The button will illuminate but only when it is being pressed.
I have a Power Mac G4 Quicksilver 2002 800MHz that will power on when the power button is pressed but will not boot.
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