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Lenovo ThinkCentre M50 Hardware Maintenance Manual (HMM) - Page 121

Power, management, Automatic, configuration, power, interface, Advanced, Management, Hardware,

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Power management Power management reduces the power consumption of certain components of the computer such as the system power supply, processor, hard disk drives, and some monitors. Advanced Power Management and Rapid Resume™ Manager are features of some personal computers. Automatic configuration and power interface (ACPI) BIOS Being an ACPI BIOS system, the operating system is allowed to control the power management features of the computer and the setting for Advanced Power Management (APM) BIOS mode are ignored. Not all operating systems support ACPI BIOS mode. Advanced Power Management Energy-saving settings can be viewed and changed by using the Advanced Power Management menu in the IBM Setup Utility program. Attention: If a device, such as a monitor, does not have power-management capabilities, it can be damaged when exposed to a reduced-power state. Before making energy-saving selections for the monitor, check the documentation supplied with the monitor to see if it supports Display Power Management Signaling (DPMS). Automatic Hardware Power Management features Automatic Hardware Power Management can reduce the power states of the computer, processor, and monitor (if the monitor supports DPMS) if they are inactive for a predetermined length of time. Set the time for the system to enter a low-power state. You can define the amount of energy savings by specifying values for the following options. v System Power - Select On for the computer to remain on. - Select Off for the computer to shut down. v Display Set display to be disabled or to be reduced at these power states: - Standby: Screen is blank, but can be restored immediately when any activity is detected. - Suspend: Monitor uses less power than in Standby mode. Screen image is restored after a few seconds when any activity is detected. - Off: Monitor power is off. Press Monitor power button to restore power. On some monitors, you might have to depress the power button twice. Setting Automatic Hardware Power Management features 1. Start the IBM Setup Utility program (see Chapter 5, "IBM Setup Utility program," on page 19). 2. Select Power Management from the IBM Setup Utility program menu. Chapter 8. Additional Service Information 115

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

Power

management

Power

management

reduces

the

power

consumption

certain

components

the

computer

such

the

system

power

supply,

processor,

hard

disk

drives,

and

some

monitors.

Advanced

Power

Management

and

Rapid

Resume

™

Manager

are

features

some

personal

computers.

Automatic

configuration

and

power

interface

(ACPI)

BIOS

Being

ACPI

BIOS

system,

the

operating

system

allowed

control

the

power

management

features

the

computer

and

the

setting

for

Advanced

Power

Management

(APM)

BIOS

mode

are

ignored.

Not

all

operating

systems

support

ACPI

BIOS

mode.

Advanced

Power

Management

Energy-saving

settings

can

viewed

and

changed

using

the

Advanced

Power

Management

the

IBM

Setup

Utility

program.

Attention:

device,

such

monitor,

does

not

have

power-management

capabilities,

can

damaged

when

exposed

reduced-power

state.

Before

making

energy-saving

selections

for

the

monitor,

check

the

documentation

supplied

with

the

monitor

see

supports

Display

Power

Management

Signaling

(DPMS).

Automatic

Hardware

Power

Management

features

Automatic

Hardware

Power

Management

can

reduce

the

power

states

the

computer,

processor,

and

monitor

(if

the

monitor

supports

DPMS)

they

are

inactive

for

predetermined

length

time.

Set

the

time

for

the

system

enter

low-power

state.

You

can

define

the

amount

energy

savings

specifying

values

for

the

following

options.

System

Power

–

Select

for

the

computer

remain

on.

–

Select

Off

for

the

computer

shut

down.

Display

Set

display

disabled

reduced

these

power

states:

–

Standby:

Screen

blank,

but

can

restored

immediately

when

any

activity

detected.

–

Suspend:

Monitor

uses

less

power

than

Standby

mode.

Screen

image

restored

after

few

seconds

when

any

activity

detected.

–

Off:

Monitor

power

off.

Press

Monitor

power

button

restore

power.

some

monitors,

you

might

have

depress

the

power

button

twice.

Setting

Automatic

Hardware

Power

Management

features

Start

the

IBM

Setup

Utility

program

(see

Chapter

“IBM

Setup

Utility

program,”

page

19).

Select

Power

Management

from

the

IBM

Setup

Utility

program

menu.

Chapter

Additional

Service

Information

115