DEC GTX5166M Service Quick Reference Manual page 95

Troubleshooting
Code Beeps POST Routine Description
DA Extended Block Move
DC Shutdown 10 error
The following Error Codes are related to the Boot Block in the Flash
ROM:
E2 Initialize the chipset
E3 Initialize refresh counter
E4 Check for Forced Flash
E5 Check HW status of ROM
E6 BIOS ROM is OK
E7 Do a complete RAM test
E8 Do OEM initialization
E9 Initialize interrupt controller
EA Read in the bootstrap code
EB Initialize all vectors
EC Boot the Flash program
ED Initialize the boot device
EE Boot code was read OK
If the BIOS detects error 2C, 2E, or 30 (base 64K RAM error), it displays
an additional word of information reflecting the bit or address line that
failed. For example, if "2C 0002" is displayed, address line 1
(represented by bit one) has failed. If "2E 1020" is displayed, then data
bits 12 and 5 have failed in the upper 16 bits.
The BIOS sends the same information to the port 80h LED display. The
check point code is followed by a delay, the high order byte, another
delay, and then the low order byte of the error. This is be repeated
continuously.
4-22