installed firewire card - fan became noisy
- Thread starter neil001
- Start date
DeltaMac
Tech
Is the clear plastic air deflector properly in place? You can also see a red light that is located near the front of the logic board. The light will be out when the deflector is in place. If you see the red light, then that's why the fans are running at full speed.
Have you tried a logic board reset (also called a PMU or SMC reset)? Shut the system off, and press the reset button (you should see it at the bottom of the logic board, underneath the memory slots. You can slide the fans in front of the processors out, to easily get to that button.
Have you tried a logic board reset (also called a PMU or SMC reset)? Shut the system off, and press the reset button (you should see it at the bottom of the logic board, underneath the memory slots. You can slide the fans in front of the processors out, to easily get to that button.
DeltaMac
Tech
remove the power cord, and the battery. let the G5 sit for an hour or so. Battery back in. press the reset button, and do an Open Firmware reset
restart with Apple-Option-O-F
at the prompt, type reset-nvram, and press enter
type set-defaults, and press enter
type reset-all, and press enter.
Hold Option-Apple-P-R during the reboot, until you hear the startup chime 3 times. release the keys, and let it boot normally. reset your time and date if you need to.
If that doesn't control the fans again, then may need service.
Do the fans kick on immediately, or only after the system begins to load?
You may have software problems, and not a problem with the hardware at all. In that case, download and reinstall the current combined updater for your version of OS X.- 10.3.9, or 10.4.8 - whatever you currently have.
If THAT doesn't help, you may need to locate a copy of the Apple Service Diagnostics ver 2.5.8(NOT hardware test), if you know someone.
restart with Apple-Option-O-F
at the prompt, type reset-nvram, and press enter
type set-defaults, and press enter
type reset-all, and press enter.
Hold Option-Apple-P-R during the reboot, until you hear the startup chime 3 times. release the keys, and let it boot normally. reset your time and date if you need to.
If that doesn't control the fans again, then may need service.
Do the fans kick on immediately, or only after the system begins to load?
You may have software problems, and not a problem with the hardware at all. In that case, download and reinstall the current combined updater for your version of OS X.- 10.3.9, or 10.4.8 - whatever you currently have.
If THAT doesn't help, you may need to locate a copy of the Apple Service Diagnostics ver 2.5.8(NOT hardware test), if you know someone.