Digital Equipment DIGITAL Server 7100 1200, Service Maintenance Manual, Page: 57 / 162

Troubleshooting
4-12
POST OCP Messages
The following table lists the messages, both normal and error, that will display on the
server’s OCP panel during POST and any beeps that might sound when an error
occurs.
NOTE:
To disable the speaker, press the appropriate button
located below the OCP once after a beep sounds. To enable it,
repress the button once.
POST Codes
POST
Code Descriptions Count
Down
Code
(1)
Normal OCP
Display OCP Error
Display Beep Codes
BIOS ROM checksum 1-2-2-3
Test DRAM refresh 1-3-1-1
Test 8742 keyboard controller 1-3-1-3
RAM failure on address line
xxxx 1-3-4-1
RAM failure on data bits xxxx
of low byte of memory bus 1-3-4-3
RAM failure on data bits xxxx
of high byte of memory bus 1-4-1-1
Check ROM copyright notice 2-1-2-3
Unexpected interrupts test 230 Unexpected int 2-2-3-1
(1)
Count down codes are displayed on the server’s monitor.
continued