G5 machines can be troublesome. I've owned three, and the 2.7GHz LCS model was the most unreliable, of course! This thread is for Power Mac G5s, hopefully when I know a bit more about iMacs and Xserves those can be here too!
This is a wiki, so you guys are free to add your knowledge!
This is a wiki, so you guys are free to add your knowledge!
G5 Won't Turn on
- Reset SMU
- Reset PMU
- Reseat Processors
G5 Turns on, Beeps
- 3 beeps, fans like a jet? Re-seat RAM
- 3 beeps, fans like a jet after Re-seating RAM? Check for problems with the installed DIMMS
- 3 beeps, fans like a jet and all DIMMs OK? Your memory controller is more then likely bad. Bake/Replace Logic Board
- 2 low tone beeps. Reset PRAM
No Video Output
- Remove and re-seat graphics card
- Turn on, sit for 5 minutes, then hard shut down.
- Find a spare graphics card and try
Loud Fans
- Remove and clean them of dust
- Check Thermal Sensor by AirPort card
- Run ASD Thermal Calibration 2.5.8 (2003-Early05) 2.6.3 (Late05)
Red Lights on CPU Cards
Happened to me between two machines, each 2.7GHz
- Reseat Heatsink/LCS
- Reset PMU
- Let machine sit and cool, if a LCS add more coolant.
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