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IBM 8840 Hardware Maintenance Manual - Page 29

Power, checkout

UPC - 000435863799

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System board switch block (SW2) SW2 ON 1 2 3 4 5 6 7 8 Boot block recovery jumper (J60) 4. Move the jumper from pins 1 and 2 to pins 2 and 3 to enable the BIOS recovery mode. 5. Insert the BIOS recovery diskette into the diskette drive. 6. Reinstall the server cover; then, reconnect all power cords. 7. Restart the server. The system begins the power-on self test (POST). 8. Select 1 - Update POST/BIOS from the menu that contains various flash update options. 9. When prompted as to whether you want to save the current code to a diskette, press N. 10. When prompted to choose a language, select a language (from 0 to 7), and press Enter to accept your choice. 11. Remove the BIOS recovery diskette from the diskette drive. 12. Turn off the server, and disconnect all power cords and external cables; then, remove the server cover. 13. Remove the jumper from the flash boot block recovery jumper block, or move it to pins 1 and 2 to return to normal startup mode. 14. Reconnect all external cables and power cords, and turn on the peripheral devices; then, reinstall the server cover. 15. Restart the server. The server starts up normally. Power checkout Power problems can be difficult to solve. For example, a short circuit can exist anywhere on any of the power distribution buses. Usually, a short circuit will cause the power subsystem to shut down because of an overcurrent condition. Chapter 3. Diagnostics 19

Section	Page
Contents	5
About this document	9
Important safety information	9
Online support	10
Chapter 1. Introduction	11
Related documentation	11
Notices and statements in this book	12
Features and specifications	13
Server power, controls, and indicators	14
Front view	14
Rear view	15
Server power features	16
Turning on the server	16
Turning off the server	17
Chapter 2. Configuring the server	19
Starting the Configuration/Setup Utility program	20
Chapter 3. Diagnostics	21
General checkout	21
Diagnostic tools overview	22
POST error logs	23
Viewing error logs from the Configuration/Setup Utility program	23
Viewing error logs from diagnostic programs	23
ServerGuide error symptoms	23
Small computer system interface messages	24
Diagnostic programs and error messages	24
Diagnostic text message format	25
Starting the diagnostic programs	25
Viewing the test log	26
Viewing the system-error log or BMC log	26
Identifying problems using status LEDs	26
Power-on password override	26
Power supply LEDs	27
Light path diagnostics	27
Diagnosing problems using light path diagnostics	28
Light path diagnostics LEDs	28
Recovering the BIOS code	28
Power checkout	29
Troubleshooting the Ethernet controller	30
Network connection problems	30
Ethernet controller troubleshooting chart	31
Ethernet controller messages	31
Chapter 4. Installing options	33
Installation guidelines	33
System reliability guidelines	34
Working inside the server with the power on	34
Handling static-sensitive devices	35
Major components of the xSeries 346 Type 8640 server	36
Removing the cover	38
Removing the air baffle	39
Working with adapters	40
Installing a hot-swap drive	48
Installing memory modules	49
Installing a microprocessor	52
Installing a hot-swap power supply	57
Replacing a hot-swap fan	59
Replacing the battery	60
Completing the installation	61
Connecting the cables	62
Updating the server configuration	63
Connecting external options	64
Power-cage card internal cable connectors	64
Input/output connectors	65
Auxiliary-device (pointing device) connector	65
Ethernet connectors	66
Advanced Systems Management (ASM) connectors	66
Keyboard connector	66
Serial connector	66
Ultra320 SCSI controller system-board connectors	66
SCSI cabling requirements	67
SCSI IDs	67
SCSI connector	67
Universal Serial Bus version 1.1 or 2.0 connectors	68
Video connector	68
Chapter 5. Field replaceable units	69
Thermal grease	69
Fan bracket	70
Power cage assembly	71
Hard disk drive backplane	72
Media cage	73
Removing a microprocessor	74
System board	76
System-board option connectors	76
System-board internal cable connectors	77
System-board external connectors	77
System-board switches and jumpers	78
System-board LEDs	79
Removing the system board and shuttle	80
Chapter 6. Symptom-to-FRU index	83
Beep symptoms	84
No-beep symptoms	87
POST error codes	87
Light path diagnostics LEDs	93
Diagnostic error codes	95
Error symptoms	100
DVD-ROM drive error symptoms	101
Diskette drive error symptoms	101
General error symptoms	101
Hard disk drive error symptoms	102
Intermittent error symptoms	102
Keyboard, mouse, or pointing device error symptoms	102
Memory error symptoms	103
Microprocessor error symptoms	103
Monitor error symptoms	103
Option error symptoms	105
Power error symptoms	105
Serial port error symptoms	106
ServerGuide error symptoms	107
Software error symptoms	108
Power-supply LED errors	109
Service processor error codes	109
SCSI error codes	109
Temperature error messages	110
Fan error messages	111
Power error messages	111
System shutdown	111
Voltage related system shutdown	112
Temperature related system shutdown	112
Hard disk drive checkout	113
Host built-in self test (BIST)	113
Bus fault messages	113
Undetermined problems	113
Problem determination tips	114
Chapter 7. Parts listing xSeries 346 Types 8840 and 1880	117
System	118
System replaceable units	119
Keyboard CRUs	122
Power cords	123
Appendix A. Getting help and technical assistance	125
Before you call	125
Using the documentation	125
Getting help and information from the World Wide Web	125
Software service and support	126
Hardware service and support	126
Appendix B. Safety information	127
General safety	127
Electrical safety	128
Safety inspection guide	129
Handling electrostatic discharge-sensitive devices	130
Grounding requirements	130
Safety notices (multilingual translations)	130
Appendix C. Notices	165
Edition notice	165
Trademarks	166
Important notes	166
Product recycling and disposal	167
Battery return program	167
Electronic emission notices	168
Federal Communications Commission (FCC) statement	168
Industry Canada Class A emission compliance statement	168
Australia and New Zealand Class A statement	168
United Kingdom telecommunications safety requirement	168
European Union EMC Directive conformance statement	169
Taiwanese Class A warning statement	169
Chinese Class A warning statement	169
Japanese Voluntary Control Council for Interference (VCCI) statement	169

Match case Limit results 1 per page

Boot block

recovery jumper (J60)

System board

switch block

(SW2)

SW2

Move

the

jumper

from

pins

and

pins

and

enable

the

BIOS

recovery

mode.

Insert

the

BIOS

recovery

diskette

into

the

diskette

drive.

Reinstall

the

server

cover;

then,

reconnect

all

power

cords.

Restart

the

server.

The

system

begins

the

power-on

self

test

(POST).

Select

Update

POST/BIOS

from

the

that

contains

various

flash

update

options.

When

prompted

whether

you

want

save

the

current

code

diskette,

press

10.

When

prompted

choose

language,

select

language

(from

7),

and

press

Enter

your

choice.

11.

Remove

the

BIOS

recovery

diskette

from

the

diskette

drive.

12.

Turn

off

the

server,

and

disconnect

all

power

cords

and

external

cables;

then,

remove

the

server

cover.

13.

Remove

the

jumper

from

the

flash

boot

block

recovery

jumper

block,

move

pins

and

return

normal

startup

mode.

14.

Reconnect

all

external

cables

and

power

cords,

and

turn

the

peripheral

devices;

then,

reinstall

the

server

cover.

15.

Restart

the

server.

The

server

starts

normally.

Power

checkout

Power

problems

can

difficult

solve.

For

example,

short

circuit

can

exist

anywhere

any

the

power

distribution

buses.

Usually,

short

circuit

will

cause

the

power

subsystem

shut

down

because

overcurrent

condition.

Chapter

Diagnostics