replacing the mouse with another known good working mouse-- just to test it out. You could also try resetting the PMU. Resetting the iMac Flat Panel Power Management Unit PMU Hope this helps
reset the PMU switch, NVRAM etc when you add new hardware or if the computer crashes. This is a common issue on Mac's. The PMU reset is a little grey/black button on the board. It varies from model to
...imac will not boot up Flat panel imac will not boot up. Gets to starting up osx and no further. Try resetting the Pmu. Shut down the computer. Locate the following keys on the keyboard: Command, ...
Question about Apple iMac Computers & Internet
reset button for the PMU on the old iMac motherboard that you would also press. But to get to the MB, you need to remove the bottom of the case, and then remove the drive/motherboard assembly. It is a
pmu to reset button? we had a power outage now computer won't turn on. I read on line that I need to reset the pmu I do not know where it is locate. If there is a PMU in the G4 its on the motherboard.
computer won't turn on not sure if the plug is bad, but the computer will not turn on Resetting the iMac (Flat Panel) Power Management Unit (PMU... http://support.apple.com/kb/ht1712 Read all of ...
Question about Apple iMac Computers & Internet
...PMU reset - First turn off the iMac, once turned off unplug everything from the IMac and physicallly unplug it from the wall, wait about 5 mins at this point, then just plug in the very basics ...
...reset SMC/PMU (power Management Unit) to see if that helps. http://support.apple.com/kb/HT1894 (article with PMU instructions) If that does not work and you want to know the issue, try to boot in ...
Question about Apple iMac Computers & Internet
screen on Imac G4 17', even after reset of the PMU Could be a problem with the logic board. If you have Applecare, take it to an Apple store and they might be able to fix it. Otherwise, it may be dead
...any knocks. Power supplies are notorious on these for going bad. Goto the apple website and see if reseting the PMU will restore the unit if not try a local apple store for
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