HP A7818-IE002 - Manual (Page 160)

Troubleshooting Your Workstation
Case 3: Boot Fails, Monitor Is Blank, MaxiLife Displays Error Message
Chapter 7 160
Case 3: Boot Fails, Monitor Is Blank,
MaxiLife Displays Error Message
When the power button is pressed, the hard disk drive or fan can be heard, but the
workstation does not boot. The monitor remains blank and the status LED is red.
• Monitor remains blank.
• Status LED is RED.
• Beep code is emitted.
• MaxiLife status panel displays an error message with a sad face .
NOTE Before removing the cover, always switch off the display and workstation. Disconnect the
power cord and any accessory cables. When checks have been completed, close the
workstation and reconnect the power cord and accessory cables. Verify that the
workstation boots correctly.
Pre-boot Diagnostics
When your workstation starts up, the BIOS performs a series of pre-boot checks followed
by the Power-on Self Test (POST) to test your hardware configuration for any problems.
If a problem is detected during the POST, an error is displayed on your workstation’s
monitor.
If, however, a pre-boot test fails, it will emit an audio signal. An error message is also
displayed on the MaxiLife LCD.
The Pre-Boot Diagnostics emits an audio sequence with two kinds of sounds. The first is
an unusual series of tones that indicate an anomaly has been detected. This series of
sounds also contains an electronic signal that can be sent through a telephone line to an
authorized helpdesk or HP Support, if necessary. This signal cannot be interpreted by
the human ear. However, it can be decoded by helpdesk equipment to extract the
workstation model and serial number.
The second type of sound is a series of long beeps that indicate a particular error. If you
hear a series of beeps, you should count them as this will help you detect the cause of the
problem.
If your workstation unable to display a POST error message (for example, when you
graphics controller has failed), an error message is displayed on the MaxiLife LCD.
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