NEC Express 5800 120Eg, User Manual

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120Eg User Guide - Problem Solving
5 - 45
Beep Codes
Table 5 - 4: POST Error Beep Codes
Number of
Beeps Description Recommended Action
1 Memory refresh timer error Reseat the memory, or replace with known good
modules.
2 Parity error in base memory (first 64KB
block)
3 Base memory read / write test error
4 Motherboard timer not operational Fatal error indicating a serious problem with the
system. Consult your system manufacturer.
Before declaring the motherboard beyond all hope,
eliminate the possibility of interference by a
malfunctioning add-in card. Remove all expansion
cards except the video adapter.
- If beep codes are generated even when all other
expansion cards are absent, consult your system
manufacturer’s technical support.
- If beep codes are not generated when all other
expansion cards are absent, one of the add-in cards
is causing the malfunction. Insert the cards back
into the system one at a time until the problem
happens again. This will reveal the malfunctioning
add-in card.
5 Processor error
6 8042 Gate A20 test error (cannot switch to
protected mode)
7 General exception error (processor
exception error)
8 Display memory error (system video
adapter)
If the system video adapter is an add-in card,
replace or reseat the video adapter. If the video
adapter is an integrated part of the system board,
the board may be faulty.
9 ROM checksum error Fatal error indicating a serious problem with the
system. Consult your system manufacturer.
Before declaring the motherboard beyond all hope,
eliminate the possibility of interference by a
malfunctioning add-in card. Remove all expansion
cards except the video adapter.
- If beep codes are generated even when all other
expansion cards are absent, consult your system
manufacturer’s technical support.
- If beep codes are not generated when all other
expansion cards are absent, one of the add-in cards
is causing the malfunction. Insert the cards back
into the system one at a time until the problem
happens again. This will reveal the malfunctioning
add-in card.
10 CMOS shutdown register read/write error
11 Cache memory test failed