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User profile for user: Kashada
Kashada Author
User level: Level 1
8 points

Imac don't start after re-install Snow Leopard

Hi,


I just got re-install snow leopard on my Imac 21.5 with the install dvd, but after the instalation completed, i've got to restart it.

After that my imac don't start, i hear some noises like is powered on but the screen remains black.

Can anyone help me please



Thanks

iMac

Posted on Apr 1, 2013 6:35 AM

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User profile for user: BGreg
BGreg
User level: Level 6
17,552 points

Posted on Apr 1, 2013 8:41 AM

Ensure that no external devices, beyond possibly keyboard or mouse, are hooked up. Reset PRAM and SMC. PRAM reset:


  1. Shut down your Mac.
  2. Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
  3. Turn on the computer.
  4. Press and hold the Command-Option-P-R keys before the gray screen appears.
  5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
  6. Release the keys.

Reset SMC:


  1. Shut down the computer.
  2. Unplug the computer's power cord.
  3. Wait fifteen seconds.
  4. Attach the computer's power cord.
  5. Wait five seconds, then press the power button to turn on the computer.
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User profile for user: BGreg
BGreg
User level: Level 6
17,552 points

Apr 1, 2013 8:41 AM in response to Kashada

Ensure that no external devices, beyond possibly keyboard or mouse, are hooked up. Reset PRAM and SMC. PRAM reset:


  1. Shut down your Mac.
  2. Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
  3. Turn on the computer.
  4. Press and hold the Command-Option-P-R keys before the gray screen appears.
  5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
  6. Release the keys.

Reset SMC:


  1. Shut down the computer.
  2. Unplug the computer's power cord.
  3. Wait fifteen seconds.
  4. Attach the computer's power cord.
  5. Wait five seconds, then press the power button to turn on the computer.
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Imac don't start after re-install Snow Leopard

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