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Lenovo ThinkCentre M50 Hardware Maintenance Manual (HMM) - Page 118

Vital, product, levels

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Note: Your computer has Enhanced Security Mode. If Enhanced Security mode is enabled and there is no password set, the computer will act as if Enhanced Security is disabled. If Enhanced Security is Enabled and an administrator password is set, the administrator password must be entered to use the computer. If the administrator password is lost or forgotten, the system board in the computer must be replaced in order to regain access to the IBM Setup Utility program. Administrator password control The Administrator password is set in the IBM Setup Utility program. Refer to Chapter 5, "IBM Setup Utility program," on page 19. Operating system password An operating system password is very similar to a power-on password and denies access to the computer by an unauthorized user when the password is activated. The computer is unusable until the password is entered and recognized by the computer. Vital product data Each computer has a unique Vital Product Data (VPD) code stored in the nonvolatile memory on the system board. After you replace the system board, the VPD must be updated. To update the VPD, see "Flash update procedures" on page 113. BIOS levels An incorrect level of BIOS can cause false errors and unnecessary FRU replacement. Use the following information to determine the current level of BIOS installed in the computer, the latest BIOS available for the computer, and where to obtain the latest level of BIOS. v Current Level BIOS information - Run the IBM Setup Utility program to determine the level of BIOS installed. v Sources for determining the latest level BIOS available 1. IBM PC support web site http://www.ibm.com/pc/support/ 2. PC PartnerInfo-Technical Database (CTSTIPS.NSF) 3. IBM Support Center 4. Levels 1 and 2 Support 5. RETAIN® v Sources for obtaining the latest level BIOS available 1. IBM PC support web site http://www.ibm.com/pc/support/ 2. PC PartnerInfo-Technical Database (CTSTIPS.NSF) 3. IBM Support Center 4. Levels 1 and 2 Support To update (flash) the BIOS, see "Flash update procedures" on page 113. 112 Hardware Maintenance Manual

Section	Page
Contents	5
Chapter 1. About this manual	7
Important Safety Information	7
Chapter 2. General information	9
Features	9
Physical specifications	11
Types 8185, 8186, 8192, 8413, and 8430	12
Types 8128, 8187, 8188, 8193, 8414, and 8431	13
Types 8189, 8190, 8194, 8195, 8415, 8432, and 8433	14
Types 8196 and 8197	15
Chapter 3. General Checkout	17
Chapter 4. IBM Enhanced Diagnostics	21
Diagnostics program download	21
Navigating through the diagnostics programs	21
Running diagnostics tests	21
Test selection	22
Test results	22
Fixed disk advanced test (FDAT)	22
Quick and Full erase - hard drive	24
Viewing the test log	24
Chapter 5. IBM Setup Utility program	25
Starting the IBM Setup Utility program	25
Viewing and changing settings	25
Exiting from the IBM Setup Utility program	26
Using passwords	26
User password	26
Administrator password	26
Setting, changing, and deleting a password	26
Using Security Profile by Device	27
Using IDE Drives Setup	27
Selecting a startup device	28
Selecting a temporary startup device	28
Changing the startup device sequence	28
Chapter 6. Replacing FRUs	29
Locating connectors on the front	29
Types 8185, 8186, 8192, 8413, and 8430	29
Types 8128, 8187, 8188, 8193, 8414, and 8431	29
Types 8189, 8190, 8194, 8195, 8415, 8432, and 8433	31
Types 8196 and 8197	31
Locating the connectors on the rear	33
Types 8185, 8186, 8192, 8413, and 8430	33
Types 8128, 8187, 8188, 8193, 8414, and 8431	33
Types 8189, 8190, 8194, 8195, 8415, 8432, and 8433	35
Types 8196 and 8197	35
Removing the cover	36
Types 8185, 8186, 8192, 8413, and 8430	36
Types 8128, 8187, 8188, 8193, 8414, and 8431	37
Types 8189, 8190, 8194, 8195, 8415, 8432, and 8433	37
Types 8196 and 8197	38
Locating components	40
Types 8185, 8186, 8192, 8413, and 8430	40
Types 8128, 8187, 8188, 8193, 8414, and 8431	41
Types 8189, 8190, 8194, 8195, 8415, 8432, and 8433	42
Types 8196 and 8197	43
Identifying parts on the system board (all machine types)	44
Replacing memory (all machine types)	44
Replacing adapters	45
Types 8185, 8186, 8192, 8413, and 8430	45
Types 8128, 8187, 8188, 8193, 8414, and 8431	47
Types 8189, 8190, 8194, 8195, 8415, 8432, and 8433	48
Types 8196 and 8197	48
Replacing internal drives	49
Types 8185, 8186, 8192, 8413, and 8430	49
Drive bay information	49
Removing a drive	50
Installing a drive	51
Types 8128, 8187, 8188, 8193, 8414, and 8431	51
Drive bay information	51
Removing a drive	52
Installing a drive	53
Types 8189, 8190, 8194, 8195, 8415, 8432, and 8433	54
Drive bay information	54
Removing the drive	54
Installing a drive	55
Types 8196 and 8197	57
Drive bay information	57
Removing a drive	57
Installing a drive	59
Connecting the drive	60
Parallel ATA hard disk drive	60
Serial ATA hard disk drive	61
CD drive, DVD drive, CD/RW drive, or DVD/CD/RW combo drive	61
Diskette drive	61
Replacing the battery (all machine types)	62
Replacing the power supply	63
Types 8185, 8186, 8192, 8413, and 8430	63
Types 8128, 8187, 8188, 8193, 8414, and 8431	63
Types 8189, 8190, 8194, 8195, 8196, 8197, 8415, 8432, and 8433	64
Replacing a microprocessor (all machine types)	65
Replacing the system board (all machine types)	67
Replacing the cover and connecting the cables	69
Types 8185, 8186, 8192, 8413, and 8430	69
Types 8128, 8187, 8188, 8193, 8414, and 8431	70
Types 8189, 8190, 8194, 8195, 8415, 8432, and 8433	71
Types 8196 and 8197	72
Chapter 7. Symptom-to-FRU Index	75
Hard disk drive boot error	75
Power Supply Errors	76
Diagnostic error codes	76
Beep symptoms	95
No-beep symptoms	97
POST error codes	98
Miscellaneous error messages	113
Undetermined problems	115
Power supply connectors	116
Connector P1	116
Connector P2, P3, P4, and P7	116
Connector P5 (Diskette drive)	116
Connector P6	116
Connector P8 (Serial ATA)	116
Chapter 8. Additional Service Information	117
Security features	117
Passwords	117
Power-on password	117
Removing a power-on password	117
Administrator password	117
Administrator password control	118
Operating system password	118
Vital product data	118
BIOS levels	118
Erasing a lost or forgotten password (clearing CMOS)	119
Flash update procedures	119
Updating (flashing) BIOS from a diskette or CD-ROM	119
Updating (flashing) BIOS from your operating system	119
Recovering from a POST/BIOS update failure	120
Power management	121
Automatic configuration and power interface (ACPI) BIOS	121
Advanced Power Management	121
Automatic Hardware Power Management features	121
Setting Automatic Hardware Power Management features	121
Automatic Power-On features	122
Product Recovery Program	123
Chapter 9. Parts listing	125
Type 8128	125
Type 8185	127
Type 8186	136
Type 8187	140
Type 8188	155
Type 8189	164
Type 8190	178
Type 8192	184
Type 8193	186
Type 8194	194
Type 8195	208
Type 8196	217
Type 8197	221
Type 8413	224
Type 8414	229
Type 8415	235
Type 8430	238
Type 8431	242
Type 8432	247
Type 8433	250
Chapter 10. Related service information	253
Safety information	253
General safety	253
Electrical safety	254
Safety inspection guide	255
Handling electrostatic discharge-sensitive devices	256
Grounding requirements	257
Safety notices (multi-lingual translations)	257
Send us your comments!	286
Problem determination tips	287
Notices	287

Match case Limit results 1 per page

Note:

Your

computer

has

Enhanced

Security

Mode.

Enhanced

Security

mode

enabled

and

there

password

set,

the

computer

will

act

Enhanced

Security

disabled.

Enhanced

Security

Enabled

and

administrator

password

set,

the

administrator

password

must

entered

use

the

computer.

the

administrator

password

lost

forgotten,

the

system

board

the

computer

must

replaced

order

regain

access

the

IBM

Setup

Utility

program.

Administrator

password

control

The

Administrator

password

set

the

IBM

Setup

Utility

program.

Refer

Chapter

“IBM

Setup

Utility

program,”

page

19.

Operating

system

password

operating

system

password

very

similar

power-on

password

and

denies

access

the

computer

unauthorized

user

when

the

password

activated.

The

computer

unusable

until

the

password

entered

and

recognized

the

computer.

Vital

product

data

Each

computer

has

unique

Vital

Product

Data

(VPD)

code

stored

the

nonvolatile

memory

the

system

board.

After

you

replace

the

system

board,

the

VPD

must

updated.

update

the

VPD,

see

“Flash

update

procedures”

page

113.

BIOS

levels

incorrect

level

BIOS

can

cause

false

errors

and

unnecessary

FRU

replacement.

Use

the

following

information

determine

the

current

level

BIOS

installed

the

computer,

the

latest

BIOS

available

for

the

computer,

and

where

obtain

the

latest

level

BIOS.

Current

Level

BIOS

information

–

Run

the

IBM

Setup

Utility

program

determine

the

level

BIOS

installed.

Sources

for

determining

the

latest

level

BIOS

available

IBM

support

web

site

http://www.ibm.com/pc/support/

PartnerInfo-Technical

Database

(CTSTIPS.NSF)

IBM

Support

Center

Levels

and

Support

RETAIN

Sources

for

obtaining

the

latest

level

BIOS

available

IBM

support

web

site

http://www.ibm.com/pc/support/

PartnerInfo-Technical

Database

(CTSTIPS.NSF)

IBM

Support

Center

Levels

and

Support

update

(flash)

the

BIOS,

see

“Flash

update

procedures”

page

113.

112

Hardware

Maintenance

Manual