Resetting (Zapping) The Pram - Power Computing PowerTower Pro User Manual

Chapter 4, Troubleshooting
2.
SELECT ÒAll offÓ from the Sets pop-up menu. This will disable all your
extensions. To insure the desktop is rebuilt properly, it is necessary to
disable all non-essential extensions and control panels to eliminate the
possibility of interference.
3.
LOCATE the Macintosh Easy Open control panel and turn it on. The
Macintosh Easy Open control panel writes information to the desktop Þle
and will need to be active when re-building the desktop.
4.
HOLD down the Command and Option keys.
5.
SELECT restart from the Special menu while continuing to hold Command
and Option.
6.
CONTINUE holding Command and Option as the computer restarts.
7.
When the computer is Þnished starting-up you will see a dialog box which
says, ÒAre you sure you want to rebuild the desktop?Ó PRESS ÒOKÓ.

Resetting (Zapping) the PRAM

Your computer maintains settings for the various peripherals connected to it, among other
things, in the PRAM (parameter read-only memory). If the information in PRAM is not
properly updated, your peripherals may not function properly. Mysterious peripheral issues
can often be solved by resetting the PRAM and allowing it to re-build from scratch. The
process to do this is known as zapping the PRAM. To zap the PRAM:
1.
HOLD down the Command, Option, ÔPÕ, and ÔRÕ keys on the keyboard
simultaneously.
2.
As you continue to hold these keys, SELECT Restart from the Special
menu.
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PowerTower Pro UserÕs Guide
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