Lenovo 3000 C305 All-In-One User Manual download pdf (Page 27)

Chapter 6. Symptom-to-FRU Index

Beep Symptom FRU/Action

9 beeps

Phenix BIOS 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

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.

10 beeps

CMOS shutdown register read/write

error

11 beeps

Cache memory test failed

POST error codes

Each time you power-on the system, it performs a series of tests that

check the operation of the system and some options. This series of tests is

called the Power-On Self-Test, or POST. POST does the following operations.

• Checkssomebasicsystem-boardoperations

• Checksthememoryoperation

• Startsthevideooperation

• Veriesthatthebootdriveisworking

If the POST detects a problem, an error message appears on the screen.

A single problem can cause several error messages to appear. When you

correct the cause of the ﬁrst error message, the other error messages

probably will not appear on the screen the next time you turn on the

system.

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Lenovo 3000 C305 All-In-One User Manual Page 27