Digital Equipment Prioris HX590 DP, Service Maintenance Manual

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Digital PRIORIS HX590 & HX590 DP Server Troubleshooting
58 MCS Logistics Engineering - Nijmegen
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Beep Codes
When POST finds an error and cannot display a message, the server's speaker emits a series of beeps to indicate
the error. During POST, if the video configuration fails or if an external ROM module fails a checksum test,
then the server beeps three times.
BeepCode Error
1 long - 2 shorts Video configuration fails
External ROM module fails a checksum test
The following table lists other fatal error and their associated beep codes.
Each code represents the number of short beeps that are grouped together.
Fatal errors (errors that lock up the server) are generally the result of a failed main logic board or some other
add-on component (SIMM, BIOS, server battery, etc.).
BeepCode Error
2-2-3 BIOS ROM checksum
3-1-1
Test DRAM refresh
3-1-3
Test keyboard controller
3-4-1 Test 512K base address lines
3-4-3 Test 512K base memory
2-1-2-3
Check ROM copyright notice
2-2-3-1
Test for unexpected interrupts
POST and Boot Messages
The POST displays messages to alert to errors in hardware, software, and firmware or to provide operating
information about the server.
Each time the POST displays a message on the screen, the server's speaker beeps twice. If an error occurs
before the monitor is initialized, specific beep codes sound to alert to a problem. The following table lists a
general grouping of system messages. In addition, each message is accompanied by text describing the message
and in most cases, a recommended solution to the problem.
NOTE Italics indicate variable parts of a message such as memory addresses, hexadecimal
values, and so on. These messages can differ at each occurrence.