NEC MC2200 User Manual page 115

Code Beeps
DA 4-2-3-3 Extended Block Move
DC 4-2-4-1 Shutdown 10 error
DE 4-2-4-3 Keyboard Controller Failure
E2 4-3-1-3 Initialize the chipset
E3 4-3-1-4 Initialize refresh counter
E4 4-3-2-1 Check for Forced Flash
E5 4-3-2-2 Check HW status of ROM
E6 4-3-2-3 BIOS ROM is OK
E7 4-3-2-4 Do a complete RAM test
E8 4-3-3-1 Do OEM initialization
E9 4-3-3-2 Initialize interrupt controller
EA 4-3-3-3 Read in the bootstrap code
EB 4-3-3-4 Initialize all vectors
EC 4-3-4-1 Boot the Flash program
ED 4-3-4-2 Initialize the boot device
EE 4-3-4-3 Boot code was read OK
* If the BIOS detects error 2C, 2E, or 30 (base 512K RAM error), it displays an additional word-bitmap (xxxx) indicating the address line
or bits that failed. For example, "2E 0B10" means data bits 12 and 5 (bits 12 and 5 set) have failed in the lower 16 bits.
POST Routine Description
The following are for boot block in FLASH ROM
Problem Solving 5-19