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v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See Chapter 4, "Parts listing, System x3655, Type 7985," on page 97 to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU). v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a trained service technician. Error code Description Action 166-407-001 System Management: Failed BMC indicates failure in I2C bus test. 1. Disconnect all power cords and external cables from the server, wait 30 seconds, reconnect the power cords and cables, and retry the test. 2. Update the BMC firmware to the latest level. 3. Reseat the operator information panel cable. 4. Replace the following components one at a time, in the order shown, restarting the server each time: a. Operator information panel assembly b. (Trained service technician only) System board 166-nnn-001 System Management: Failed Note: nnn indicates the failure type. v 300 to 320: Self-test failure 1. Disconnect all power cords and external cables from the server, wait 30 seconds, reconnect the power cords and cables, and retry the test. v 400 to 420 (excluding 412, 414, and 415): 2. Update the BMC firmware to the latest level. I2C bus test failure 3. (Trained service technician only) Replace the system board. 166-412-001 System Management: Failed I2C bus failure. 1. Disconnect all power cords and external cables from the server, wait 30 seconds, reconnect the power cords and cables, and retry the test. 2. Update the BMC firmware to the latest level. 3. Reseat the power backplane. 4. Replace the following components one at a time, in the order shown, restarting the server each time: a. (Trained service technician only) Power backplane b. (Trained service technician only) System board 166-414-001 System Management: Failed I2C bus failure. 1. Disconnect all power cords and external cables from the server, wait 30 seconds, reconnect the power cords and cables, and retry the test. 2. Update the BMC firmware to the latest level. 3. Reseat the hard disk drive cable. 4. Replace the following components one at a time, in the order shown, restarting the server each time: a. (Trained service technician only) Hard disk drive backplane b. (Trained service technician only) System board 152 IBM System x3655 Type 7985: Problem Determination and Service Guide

Section	Page
Contents	5
Safety	9
Guidelines for trained service technicians	10
Inspecting for unsafe conditions	10
Guidelines for servicing electrical equipment	10
Safety statements	12
Chapter 1. Introduction	19
Related documentation	19
Notices and statements in this document	20
Features and specifications	22
Server controls, LEDs, and connectors	23
Front view	23
Rear view	25
Internal connectors, LEDs, and jumpers	26
System-board optional-device connectors	27
Riser-card optional-device connectors	28
System-board internal connectors	29
Power-backplane-card internal connectors	29
System-board external connectors	30
System-board jumpers	31
System-board LEDs	33
Riser-card assembly LEDs	33
Chapter 2. Configuration information and instructions	35
Updating the firmware	35
Configuring the server	35
Using the ServerGuide Setup and Installation CD	35
Using the Configuration/Setup Utility program	36
Using the ServeRAID configuration programs	36
Using the ServeRAID Configuration Utility program	37
Using ServeRAID Manager	37
Using the baseboard management controller	39
Enabling and configuring SOL using the OSA SMBridge management utility program	39
Installing the OSA SMBridge management utility program	48
Using the baseboard management controller utility programs	50
Updating the UUID	51
Updating the DMI/SMBIOS data	51
Chapter 3. Removing and replacing server components	53
Installation guidelines	53
System reliability guidelines	54
Working inside the server with the power on	54
Handling static-sensitive devices	55
Returning a device or component	55
Connecting the cables	55
Removing and replacing Tier 1 CRUs	57
Removing the cover	57
Installing the cover	58
Removing the air baffle	59
Installing the air baffle	60
Removing an adapter	61
Installing an adapter	62
Removing the external SAS cable	63
Installing the external SAS cable	64
Removing the Remote Supervisor Adapter II SlimLine	66
Installing the Remote Supervisor Adapter II SlimLine	67
Removing the ServeRAID SAS controller	68
Installing a ServeRAID SAS controller	69
Removing a hard disk drive	70
Installing a hard disk drive	71
Removing a CD-RW/DVD drive	73
Installing a CD-RW/DVD drive	74
Removing an optional tape drive	75
Installing an optional tape drive	75
Installing the tape drive in a 3.5-inch model server	75
Installing the tape drive in a 2.5-inch model server	77
Removing a memory module	80
Installing a memory module	80
Removing a hot-swap fan	82
Installing a hot-swap fan	83
Removing the fan-bracket assembly	84
Installing the fan-bracket assembly	85
Removing a hot-swap power supply	86
Installing a hot-swap power supply	87
Removing the battery	88
Installing the battery	90
Removing and replacing Tier 2 CRUs	91
Removing the operator information panel assembly	92
Installing the operator information panel assembly	93
Installing and removing the hard disk drive backplane	94
Removing the 3.5-inch-drive backplane	94
Installing the 3.5-inch-drive backplane	95
Removing the 2.5-inch-drive backplane	96
Installing the 2.5-inch-drive backplane	97
Removing the CD/DVD media backplane	98
Installing the CD/DVD media backplane	99
Removing the power backplane	100
Installing the power backplane	101
Removing the riser-card assembly	102
Installing the riser-card assembly	103
Removing and replacing FRUs	104
Replacing the 3.5-inch-drive center bracket	104
Removing the center bracket	104
Installing the center bracket	105
Removing a microprocessor	105
Installing a microprocessor	106
Removing a heat-sink retention module	108
Installing a heat-sink retention module	109
Removing the system board and shuttle	111
Installing the system board and shuttle	112
Chapter 4. Parts listing, System x3655, Type 7985	115
Replaceable server components	115
Power cords	121
Chapter 5. Diagnostics	125
Diagnostic tools	125
POST	125
POST beep codes	125
Beep code descriptions	126
No-beep symptoms	133
Error logs	134
Viewing error logs from the Configuration/Setup Utility program	135
Viewing the BMC system event log from the diagnostic programs	135
Clearing the error logs	135
POST error codes	136
Checkout procedure	142
About the checkout procedure	142
Performing the checkout procedure	142
Troubleshooting tables	144
CD or DVD drive problems	144
General problems	145
Hard disk drive problems	145
Intermittent problems	146
USB keyboard, mouse, or pointing-device problems	147
Memory problems	148
Microprocessor problems	149
Monitor problems	150
Optional-device problems	152
Power problems	153
Serial port problems	154
ServerGuide problems	154
Software problems	155
Universal Serial Bus (USB) port problems	156
Video problems	156
Light path diagnostics	156
Remind button	158
Light path diagnostics LEDs	159
Power-supply LEDs	160
Diagnostic programs, messages, and error codes	162
Running the diagnostic programs	162
Diagnostic text messages	163
Viewing the test log	163
Diagnostic error codes	163
Recovering the BIOS code	174
System event/error log messages	175
IPMI BMC system-error log messages	182
BIOS-logged BMC system-error log messages	191
Solving SCSI problems	193
Solving power problems	193
Solving Ethernet controller problems	194
Solving undetermined problems	195
Problem determination tips	196
Calling IBM for service	196
Appendix A. Getting help and technical assistance	199
Before you call	199
Using the documentation	199
Getting help and information from the World Wide Web	200
Software service and support	200
Hardware service and support	200
IBM Taiwan product service	200
Appendix B. Notices	201
Trademarks	201
Important notes	202
Product recycling and disposal	203
Battery return program	204
Electronic emission notices	205
Federal Communications Commission (FCC) statement	205
Industry Canada Class A emission compliance statement	205
Australia and New Zealand Class A statement	205
United Kingdom telecommunications safety requirement	205
European Union EMC Directive conformance statement	206
Taiwanese Class A warning statement	206
Chinese Class A warning statement	206
Japanese Voluntary Control Council for Interference (VCCI) statement	206

Match case Limit results 1 per page

the

suggested

actions

the

order

which

they

are

listed

the

Action

column

until

the

problem

solved.

See

Chapter

“Parts

listing,

System

x3655,

Type

7985,”

page

determine

which

components

are

customer

replaceable

units

(CRU)

and

which

components

are

field

replaceable

units

(FRU).

action

step

preceded

“(Trained

service

technician

only),”

that

step

must

performed

only

trained

service

technician.

Error

code

Description

Action

166-407-001

System

Management:

Failed

BMC

indicates

failure

bus

test.

Disconnect

all

power

cords

and

external

cables

from

the

server,

wait

seconds,

reconnect

the

power

cords

and

cables,

and

retry

the

test.

Update

the

BMC

firmware

the

latest

level.

Reseat

the

operator

information

panel

cable.

Replace

the

following

components

one

time,

the

order

shown,

restarting

the

server

each

time:

Operator

information

panel

assembly

(Trained

service

technician

only)

System

board

166-nnn-001

System

Management:

Failed

Note:

nnn

indicates

the

failure

type.

300

320:

Self-test

failure

400

420

(excluding

412,

414,

and

415):

bus

test

failure

Disconnect

all

power

cords

and

external

cables

from

the

server,

wait

seconds,

reconnect

the

power

cords

and

cables,

and

retry

the

test.

Update

the

BMC

firmware

the

latest

level.

(Trained

service

technician

only)

Replace

the

system

board.

166-412-001

System

Management:

Failed

bus

failure.

Disconnect

all

power

cords

and

external

cables

from

the

server,

wait

seconds,

reconnect

the

power

cords

and

cables,

and

retry

the

test.

Update

the

BMC

firmware

the

latest

level.

Reseat

the

power

backplane.

Replace

the

following

components

one

time,

the

order

shown,

restarting

the

server

each

time:

(Trained

service

technician

only)

Power

backplane

(Trained

service

technician

only)

System

board

166-414-001

System

Management:

Failed

bus

failure.

Disconnect

all

power

cords

and

external

cables

from

the

server,

wait

seconds,

reconnect

the

power

cords

and

cables,

and

retry

the

test.

Update

the

BMC

firmware

the

latest

level.

Reseat

the

hard

disk

drive

cable.

Replace

the

following

components

one

time,

the

order

shown,

restarting

the

server

each

time:

(Trained

service

technician

only)

Hard

disk

drive

backplane

(Trained

service

technician

only)

System

board

152

IBM

System

x3655

Type

7985:

Problem

Determination

and

Service

Guide