Lenovo H430 Desktop User Manual download pdf (Page 32)

Hardware Maintenance Manual

30

Beep symptoms

Beep symptoms are tones or a series of tones separated by pauses

(intervals without sound) during POST.

The following tables describes beep symptoms.

Beep Symptom FRU/Action

1 beep

Memory refresh timer error

Reseat the memory, or replace with

known good modules.

2 beeps

Parity error in base memory (ﬁrst

64KB block)

3 beeps

Base memory read/write test error

4 beeps

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

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 card.

5 beeps

Processor error

6 beeps

8042 Gate A20 test error (cannot

switch to protected mode)

7 beeps

General exception error (processor

exception interrupt error)

8 beeps

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.

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