How to Boot up apple imac

Alfredo Kraus

• 62 Answers
• Posted on Sep 16, 2009

SOURCE: replace damaged screen apple iMac

If You want to make it yourself and You nave iSight model - be prepared to fighting with disassembling, it's not so easy and more - after assembling You can get it non-operate. Best way is a service center. But if You're sure - I can email You disassembling manual. Sincerely.

SOURCE: The computer comes on but is frozen on Apple screen

I would try pressing f2 or f8 when first boots up, then change bios settings from first bootup device as cd rom drive, then hard disc as second drive, then place windows disc or recovery disc in pc, then reboot. and reinstall your software.

SOURCE: system will boot to the

Hi,

I am Sorry to Hear this Problem. This is a Common issue on G5 Mac Desktops. You could Google ' G5 Freezes ' and you would see many People facing the same Problem.

This is more often a Bad Faulty Logic Board. There we Certain Recalls for the same. You need to Contact Apple to check whether your Machine would be Covered under Warranty or not.

If you have the Installation Disc, You could try to Reinstall OS first. If you can't boot a CD, it would more likely Confirm Faulty Logic Board.

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

SOURCE: imac g4 won't start

Are you sure the iMac is really shutting down or just turning off the backlight? The tell-tale sing would be to let the unit fully boot-up (wait 3 minutes) and the press the button the apple keyboard that ejects the CD-ROM. If the CD-ROM door opens, you iMac is running with disabled or broken backlight.
The inverter circuit on the iMac G4 is known to be weak.
There could be another problem, though. The iMac G4 is also known to have weak internal power supplies. Here's how you can tell:
Hold down the CMD OPT "O" and "F" keys at the same time while pressing the power button. This will tell the iMac that you want to boot into the Open Firmware shell, bypassing the Mac OS X startup. If this works, your power supply is good, the inverter is good and you have a problem with your Open Firmware boot string. To fix the boot string, Power on the unit while holding down the keys CMD-OPT-P-R to zap the parameter RAM (PRAM) and reset everything to defaults.
If you were not able to boot into the Open Firmware shell, your problem is either a failed power supply or a failed screen backlight. The last possible culprit is your iMac could suffer from "Bulging Capacitor Syndrome", where a batch of iMac G4s, iMac G5s another electronics were fitted with a bad batch of capacitors. Eventually, the caps will rupture and cause irreparable damage to the logic board. Only way to verify this is to pull the unit apart and visually inspect. If you see little green or blue cylinders that seem to be bulging or oozing a thick oily goo, that's your problem. Only recourse is to shop around on eBay and look for a replacement logic board.

SOURCE: my imac g4 goes to white screen on start up. The

I think your system files are corrupt try to reinstall mac OS X