

Reboot to your new fixed clean Updated Mac ComputerĪpple Make it so easy. Then reboot and follow prompts to "Migrate" original hard drive files & settings back to the new OSX.
How to make bootable usb for mac g5 a1186 install#
Next step would be to use Disk Utility to re format your Internal Hard Drive and re install a new clean updated version of your OSX back on to your internal Hard Drive. ReBoot with option Key Down to choose the new clone to boot from. Proove that it is Bootable and contains all your files. This will be a complete bootable copy of everything on your HD. Plug it in and use Carbon Copy Cloner (CCC) to make a clone of your existing HD. If the above works then it shows black screen again which a normal boot then it would be a good idea to get an external Hard Drive for your Mac. Then ReBoot as Normal an see what happens.

this may also fix some parameters and extensions in the background which may fix the problem. It will take a lot longer to boot up and you will have limited capabilities. Keep it down till you see some movement on the screen.

You could also keep the SHIFT key down after the startup chimes. You can run Disk Utility from here to test HD etc.īut if this screen stays working then you have a problem with your OSX that is on your Macintosh Disk drive. It will reboot from an alternate very basic OS. You can also boot with the Option key held down.Ĭhoose the Recovery OS Drive from the screen menu. This Resets the Parameter Ram and may reset the monitor parameters to clear the problem. Keep them down and you should hear another restart soundĭo this for three or four startup chimes then let the keys go. Then immediately hold down these keys.Ĭmd, Option, P, R, Keys all held down together. Is it a separate external Monitor or is it Part of an iMac. If none of these strategies work, you may have internal component problems with your Imac that will require more expert repairs. Disk Warrior will diagnose and repair problems with your OS. Or use disk warrior and start the same way. If you see a screen but the Imac still won't boot, insert the restore disc, hold down the "C" key and restart from the disk. I have restored "dead" Macs by that simple technique. If you do not get any start-up screen or any chime, unplug the unit, remove all peripherals ( such as USB cables etc) and leave it sit overnight. Eventually you will see the normal Mac screen and your icons will slowly reappear. If the Imac has shut down suddenly or prematurely, you might not hear the chime but will see a grey screen with a status bar. You should hear the chime, the screen will come up and you will be taken to the Mac start-up screen (different OS will have different looking screens). Without being with the machine it's difficult to determine any other problem that it could be.Ī normal restart only requires you to press the re-start button on the back of the CPU or on the front.
How to make bootable usb for mac g5 a1186 tv#
Your data is safe on the HD as that will not be affected - get the TV man to take the drive out for you - the high voltages inside can kill - (better kill him than yourself) and then install it in an external case to run on your new Mac However - big problem is that given the age of the eMac, there is a good chance that the gloop will have caused corrosion on the motherboard - and that is NOT repairable.īe prepared that you may have to buy a new Mac. It is repairable but Apple will probably tell you to take it to a repair centre as they don't carry the spares anymore.īest option is to try a TV repair man as the skills needed are more TV repairman than computer tech related. If they show signs of bulging or any gloop oozing from them then that is the problem. You can see 3 or 4, they are silver cylinders. You can check it by opening the little panel on the bottom of the eMac (small cross-point screwdriver and 1 screw) and have a look at the capacitors inside. This was a world-wide problem but it appeared to hit the eMac particularly badly. If so then you probably have a faulty motherboard caused by the infamous leaky capacitor problem. Have you had any screen problems leading up to this? Things like random freezing while moving the pointer or dragging a window, or disturbances to the display like tearing or jaggy edges appearing randomly? SOURCE: screen stays black when i turn on mac g4 desktop
