G4 mac tower wont turn on

Sep 01,  · My Power Mac G4 Tower won't power on. Please help! I already tried replacing the power source, but that didn't change anything. I even replaced the PRAM battery. WHAT DO YOU SUGGEST. Thanks! PowerMac G4 won't turn on Your computer will not boot. If your computer will not turn on, you see no lights, and hear no fans blowing, first check that it is plugged into a working power outlet. Also check that the red breaker on the back panel of your computer is set to the appropriate power setting. Apr 14,  · Press and hold the power button on your Mac for 10 seconds, then press it again. Reset the System Management Controller (SMC). Make sure that your display's brightness is turned up. Mac notebook computers have a Brightness Up key on the built-in keyboard. Unplug all accessories from your Mac, including printers, drives, USB hubs, and mobile devices. G4 mac tower wont turn on- a lot of g4's are dying, they're over 10 years old. - if the battery was dead, the fans would run and the mac would come up with a logo that it doesn't know from which drive to boot. - so the power supply is dead. if you want to replace it, make sure you open the case and write down the model number. Sep 16,  · Also purchased from eBay. Running in the pictures, and asured to run just the same when it arrived. londonmovers.xyz In the end, it did turn out to be a faulty power supply. Apr 14,  · Press and hold the power button on your Mac for 10 seconds, then press it again. Reset the System Management Controller (SMC). Make sure that your display's brightness is turned up. Mac notebook computers have a Brightness Up key on the built-in keyboard. Unplug all accessories from your Mac, including printers, drives, USB hubs, and mobile devices. How to fix a Mac that won't turn on. 1. Check your Mac turns on. First, let's find out if the problem is that your Mac won't start up, or that it won't turn on - those might sound like 2. Perform a Power Cycle. 3. Check your display. 4. Boot up your Mac in Safe Boot. 5. Check the file system. Sep 01,  · My Power Mac G4 Tower won't power on. Please help! I already tried replacing the power source, but that didn't change anything. I even replaced the PRAM battery. WHAT DO YOU SUGGEST. Thanks!My G4 Quicksilver went dead with the following symptom. A tiny light on the motherboard flashes momentarily but nothing starts in the computer. A Mac "Tech​" said it was a bad Power Supply so I obtained a replacement and carefully made the Tried to replace the Power Supply but the button will not power up. I think it is. PowerMac G4 won't turn on. Your computer will not boot. If your computer will not turn on, you see no lights, and hear no fans blowing, first check that it is. londonmovers.xyz › Desktop Computers › Power Mac. Excellent it worked I press shift+ctrl and power button, release and press the power button again a few seconds later.. delete and off button and it worked. Make sure the battery is installed in the correct +/-. - if you are looking

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