TITLE
    Power On Self-Test Beep Definition - Part 2
Article ID:
Created:
Modified: 		58442
9/7/99
8/16/00
TOPIC

    Products introduced after October, 1999 use a revised set of power on self-test beeps during startup. This article describes each one.

    Refer to article 58183: " Power On Self-Test Beep Definition - Part 1 " for information on earlier computers.

DISCUSSION

    The power on self-test resides in the ROM of the computer. This test runs whenever the computer is turned on after being fully shut down (the power-on self-test does not run if the computer is only restarted).

    If a fault is detected during the test, you will not hear a normal startup chime. Instead, the system will beep as explained below. If you experience one of these beeps, you should call your Apple Authorized Service Provider for additional troubleshooting assistance.

    1 beep = no RAM installed
    2 beeps = incompatible RAM types
    3 beeps = no good banks
    4 beeps = no good boot images in the boot ROM (and/or bad sys config block)
    5 beeps = processor is not usable


Document Information
Product Area: Power Mac G4
Category: Power Mac G4 Hardware
Sub Category: Troubleshooting

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