Руководство Пользователя для Apple Mac Pro

Problem, Meet Solution

The PRAM is reset to the default values and your clock settings may need to be reset.

If your computer does not start up after resetting the PRAM, restart your computer
while holding down the Option key to select your startup disk.

If this doesn’t work, restart your computer while holding down the Shift key.

If you’re unable to eject a disc
A file on the disc may be in use. Quit applications that are open, and then try again.

If that doesn’t work, choose Apple () > Restart and hold down either the mouse
button or the Media Eject (C) key on your Apple Keyboard.

If that doesn’t work:

Shut down the computer and remove the side panel (see the instructions on page 39).

Pull the optical drive carrier out of the optical drive bay (see “Replacing an Optical
Drive” on page 68).

Carefully insert the end of a straightened paper clip into the small hole on the front of
the optical drive.

Push firmly until the tray opens, remove the disc, and push the tray to close it.

Put the optical drive carrier and the side panel back in place (see “Replacing an Optical
Drive” on page 68).

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If you recently installed memory, a PCI expansion card, or another internal
component, make sure that it is correctly installed and that it is compatible with your
computer. See if removing it allows the computer to start up.