Lenovo ThinkCentre M90 Quick reference guide

Lenovo BIOS Windows
M a nag e m e n t Instrumentation
In t e rf a c e Deployment Guide for
Desktop
Date:April
2010

First Edition (April 2010)
© Copyright Lenovo 2010. All rights reserved.

@Copyright Lenovo 2010
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Contents
Preface....................................................................................................................................III
Chapter 1. Overview ............................................................................................................... 1
Using Windows Management Instrumentation.................................................................................................1
Key benefits.....................................................................................................................................................1
Function...................................................................................................................................................2
Environment............................................................................................................................................2
Interface................................................................................................................................................... 2
Supported computers....................................................................................................................................... 2
Chapter 2. Script Classes and Parameter............................................................................. 3
Configuring BIOS settings..............................................................................................................................3
Return types...................................................................................................................................................... 5
Password Authentication.................................................................................................................................5
Available BIOS setting names........................................................................................................................ 6
Chapter 3. Typical Usage........................................................................................................ 9
Listing current BIOS settings..........................................................................................................................9
Changing BIOS settings.................................................................................................................................. 9
Changing the boot order..................................................................................................................................9
Restoring default settings.............................................................................................................................. 10
Changing an existing hardware password ....................................................................................................10
Limitations...................................................................................................................................................... 11
Chapter 4. Security................................................................................................................ 13
Appendix A. Sample Visual Basic scripts for configuring BIOS settings......................... 15
Restore default settings...................................................................................................................................15
List all BIOS settings on the local computer ..................................................................................................16
Set a single BIOS setting on the local computer.............................................................................................16
Set a single BIOS setting on the local computer if a Administrator password exists......................................17
List all BIOS settings on a remote computer..................................................................................................18
Set a single BIOS setting on a remote computer.............................................................................................18
Set a single BIOS setting on a remote computer when a Administrator password exists ...............................19
Set a Administrator password on the local computer when a Administrator password exists ........................20
Set a Administrator password on a remote computer when a Administrator password exists........................21
Appendix B. Notices .............................................................................................................. 23
Trademarks..................................................................................................................................................... 24

@Copyright Lenovo 2010
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Preface
The purpose of this guide is to explain how to modify BIOS
settings, boot order using Windows Management Instrumentation
(WMI) through the Lenovo client-management interface. This
guide is intended for skilled IT administrators who are familiar
with configuring BIOS settings on computers in their
organizations.
This guide is provided in a ZIP file package that contains this
deployment guide as well as Visual Basic sample scripts to use
when configuring BIOS settings.
This deployment guide is developed for IT professionals to assist
with the unique challenges that they encounter. If you have
suggestions or comments, communicate with your Lenovo®
authorized representative. To learn more about the technologies that
can help you lower the total cost of ownership and to check for
periodic updates to this guide, visit the following Web site:
www.lenovo.com/support

@Copyright Lenovo 2010
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Chapter 1. Overview
IT administrators are always looking for easier ways to manage
client computer BIOS settings, which include hardware settings,
and the boot order. The Lenovo BIOS WMI interface provides a
simplified way to change these settings. Lenovo has developed a
BIOS interface that can be manipulated through Windows
Management Instrumentation (WMI). The Lenovo BIOS WMI
interface enables IT administrators to make queries on current
BIOS settings, restore settings to their factory defaults, change
single settings, reset or change passwords, and modify the boot
order either at client computers or remotely.
Using Windows Management Instrumentation
WMI is provided as a standard feature in most Windows® operating
systems. It provides a powerful set of functions, such as
query-based information retrieval and event notification, which
enables users to manage both local and remote computers. The
Lenovo BIOS WMI interface extends the capabilities of WMI to
allow management of BIOS settings.
The following illustration shows how WMI can be used to access
Lenovo BIOS settings.
WMI uses Windows Script host (WSH) to interpret scripts. You can
write your scripts in either Windows Visual Basic Scripting Edition
(VBScript) or JavaScript.
Key benefits
The Lenovo BIOS WMI interface provides the following benefits:

Lenovo BIOS Windows Management Instrumentation Interface Deployment Guide for Desktop
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Function
·Flexible BIOS configuration, including the ability to change a
single BIOS setting or all BIOS settings
·Bios password management , including update Administrator
passwords, power-on passwords(POP), hard disk
drive(HDD)passwords
·No dependency on a specific BIOS level
Environment
·Remote or local capabilities
·Support of unattended operations
·No software installation, including managed object format (MOF),
required
·Replaces DOS-based BIOS configuration tools
Interface
·Easy to adopt for various management servers
·Replaces current SMI interface
·Common interface for different products
Supported computers
BIOS setup through WMI descripted in this document is
supported on the following new Thinkcentre products only:
·Thinkcentre M90/M90p

@Copyright Lenovo 2010
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Chapter 2. Script Classes and Parameter
This chapter contains WMI implementation details for configuring
BIOS settings.
Configuring BIOS settings
The following interface details can be used to access Lenovo BIOS
settings.
·Namespace: "\root\WMI"
·Base Class: "Lenovo_BIOSElement"
·Interface details (see Table 1)
Table 1. Interface Details

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Class Name Type Parameter/Return Example
Lenovo_BiosSetting Query CurrentSetting:”Item,Value”“Wake Up on LAN,
Eanbled”
Lenovo_SetBiosSetting Method “Item,Value;”“Wake Up on
LAN,Disabled;”
Lenovo_SaveBiosSettings Method “Password,Encoding,KbdLa
ng;”
“pswd,ascii,us;“
Lenovo_DiscardBiosSettings Method “;” “;”
Lenovo_LoadDefaultSettings Method “;” “;”
Lenovo_BiosPasswordSettings Query
PasswordMode:”Value”
-0:Legacy Mode
-Others: Reserved
PasswordState:”Value”
-BIT0=1: User password is
installed
-BIT1=1:Admin password is
installed
-BIT2=1:Hard disk
passwords are installed
MinLength:”Value”
-1:always one byte
MaxLength:”Value”
-64:always 64 byte
SupportedKeyboard:”Value
”
-BIT0=1:Support US
keyboard
-BIT1=1:Support French
keyboard
-BIT2=1:Support German
keyboard
SupportedEncodings:”Value
”
-BIT0=1: support ASCII
password input
-BIT1=1:support scancode
password input
Port0HardDiskPasswordStat
e:”Value”
-BIT0=1:User hard disk
password is installed
-BIT1=1:Master hard disk
password is installed
Port1HardDiskPasswordStat
e:”Value”
Port2HardDiskPasswordStat
e:”Value”
Port3HardDiskPasswordStat
e:”Value”
Port4HardDiskPasswordStat
e:”Value”
Port5HardDiskPasswordStat
e:”Value”
PasswordMode:1
PasswordState:0
MinLength:1
MaxLength:64
SuportedKeyboard:7
SupportedEncodings:3
Port0HardDiskPasswordS
tate:00
Port1HardDiskPasswordS
tate:00
Port2HardDiskPasswordS
tate:00
Port3HardDiskPasswordS
tate:00
Port4HardDiskPasswordS
tate:00
Port5HardDiskPasswordS
tate:00
Lenovo_SetBiosPassword Method “PasswordType,CurrentPass
word,
NewPassword,Encoding,Kb
“pop,oldpop,
newpop,ascii,us;”

@Copyright Lenovo 2010
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Notes:
1. See Appendix A, “Sample Visual Basic scripts for configuring
BIOS settings,”on page 15 for Visual Basic sample scripts.
2. See Table 4 on page 6 for a listing of acceptable setting names.
Return types
You will receive one of the following return types after making
changes to BIOS settings:
Table 2. Return Types
Return Type
Description
Success
Operation completed successfully.
Not
Supported The feature is not supported on this system.
Invalid
Parameter The item or value provided is not valid.
Access
Denied The change could not be made due to an authentication problem. If a supervisor password exists, the correct supervisor
password must be provided.
System Busy BIOS changes have already been made that need to be
committed. Reboot the system and try again
Password Authentication
If an Administrator password is already set, you must specify that
administrator password before you can change any BIOS settings.
The format for password parameters is "abc,ascii,us" with
descriptions in Table 3.
Table 3. Password parameters format, password authentication
Parameter
Description
Possible selections
Parameter 1
Current password ·“abc” - raw ascii character
·“1e302e” – scancode
Parameter 2
Password encoding ·“ascii”
·“scancode”
Parameter 3
Keyboard languages
(valid only if encoding is ″ascii″)
·
″us″- English US, English,
French-Canadian, Italian, Japanese,
Korean, Norwegian, Polish,
Portuguese,
Spanish-European, Spanish-Latin
American, Swiss, Turkish
·″fr″- French-European, Belgian
·″gr″- German, Czech, Slovak, Slovenian
dLang;”

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Available BIOS setting names
Some BIOS settings are dependent on the presence of certain
hardware features. Settings might vary on different computers.
Notes:
1. BIOS settings and values are case sensitive.
2. The security-related options are not changed even if the
“load default” is requested.
Table 4. List of available BIOS settings
Item Name Option Value Related item
Floppy Driver A "Disabled","Enabled" N
Serial Port1 Address
"3F8/IRQ4","2F8/IRQ3","3E8/IRQ4","2E8/I
RQ3","Disabled"
N
Serial Port2 Address
"3F8/IRQ4","2F8/IRQ3","3E8/IRQ4","2E8/I
RQ3","Disabled"
N
Parallel Port Address "378","278","3BC","Disabled" N
Parallel Port Mode "ECP+EPP","ECP","EPP"
Parallel Port
Address
EPP Version "1.9","1.7"
Parallel Port
Address
ECP Mode DMA Channel "DMA3","DMA1"
Parallel Port
Address
Parallel Port IRQ "IRQ7","IRQ5"
Parallel Port
Address
USB Support "Disabled","Enabled" N
USB Legacy Support "Enabled","Disabled" USB Support
Front USB Ports "Disabled","Enabled" USB Support
Rear USB Ports "Disabled","Enabled" USB Support
USB Port 1 "Disabled","Enabled"
USB Support
&Front USB
Ports
USB Port 2 "Disabled","Enabled"
USB Support
&Front USB
Ports
USB Port 3 "Disabled","Enabled"
USB Support
&Rear USB
Ports
USB Port 4 "Disabled","Enabled"
USB Support
&Rear USB
Ports
USB Port 5 "Disabled","Enabled"
USB Support
&Rear USB
Ports
USB Port 6 "Disabled","Enabled"
USB Support
&Rear USB
Ports
USB Port 7 "Disabled","Enabled"
USB Support
&Rear USB
Ports
USB Port 8 "Disabled","Enabled"
USB Support
&Rear USB
Ports
EHCI Controller 1 "Disabled","Enabled" USB Support

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&Rear USB
Ports
EHCI Controller 2 "Disabled","Enabled"
USB Support
&Rear USB
Ports
External SATA Port "Disabled","Enabled" N
SATA Controller "Disabled","Enabled" N
Configure SATA as "IDE","AHCI","RAID"
SATA
Controller
Hard Disk Pre-delay
"Disabled","3 Seconds","6 Seconds","9
Seconds",
"12 Seconds","15 Seconds","21
Seconds","30 Seconds"
N
Select Active Video "IGD","PCI","PEG","Auto" N
Pre-Allocated Memory
Size
"32MB","64MB","128MB"
Select Active
Video
Total Graphics Memory "128MB","256MB","Maximum"
Select Active
Video
PAVP "Disabled","Enabled"
Select Active
Video
Onboard Audio
Controller
"Disabled","Enabled" N
Onboard Ethernet
Controller
"Disabled","Enabled" N
Boot Agent "PXE","SMC","Disable"
Onboard
Ethernet
Controller
Plug & Play OS "No","Yes" N
Legacy Free "Disabled","Enabled" N
Intel(R) SpeedStep(TM)
Technology
"Disabled","Enabled" N
Core Multi-Processing "Enabled","Disabled" N
Hyper Threading
Technology
"Disabled","Enabled" N
Execute Disable Bit "Disabled","Enabled" N
Intel (R)Virtualization
Technology
"Disabled","Enabled" N
VT-d "Disabled","Enabled" N
TxT "Disabled","Enabled" N
C State Supported "C1","C1C3","C1C3C6" N
Turbo Mode "Disabled","Enabled" N
Intel(R) AMT Control "Disabled","Enabled" N
Intel(R) AMT Reset "Disabled","Enabled" N
Press <CTRL-P> to enter
MEBx
"Disabled","Enabled" N
Console Type "VT100","VT100-8bit","PC-ANSI-7bit","P
C-ANSI","VT100+", "VT-UTF8","ASCII" N
Continue C.R. after POST "On","Off" N
After Power Loss "Power Off","Power On","Last State" N
Wake Up on LAN "Primary","Automatic","Disabled" N

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Wake from PCI Modem "Primary","Automatic","Disabled" N
Wake from Serial Port
Ring
"Primary","Automatic","Disabled" N
Wake from PCI Device "Primary","Automatic","Disabled" N
Wake Up on Alarm
"Single Event","Daily Event","Weekly
Event","Disabled"
N
Startup Sequence "Primary","Automatic"
Wake Up on
Alarm
Alarm Day of Week
"Sunday","Monday","Tuesday","Wednes
day","Thursday",
"Friday","Saturday"
Wake Up on
Alarm
Hardware Password
Manager
"Disabled","Enabled" N
Require Admin.
Password when Flash
"No","Yes" N
Require POP On Restart "No","Yes" N
Preboot Authentication "Disabled","Enabled" N
Erase Fingerprint Data "No","Yes" N
Require HDP On Restart "Yes","No" N
TCG Security Feature "Disable","Inactive","Active" N
Clear TCG Security
Feature
"No","Yes" N
Configuration Change
Detection
"Disabled","Enabled" N
Primary Boot Sequence
"Floppy Drive", "Hard Drive", "CD/DVD
Drive", "Network Card", "USB Floppy",
"USB Hard Disk", "USB CD/DVD", "USB
Key"
N
Automatic Boot
Sequence
N
Error Boot Sequence N
Manufacturing Boot
Sequence
N
Quick Boot "Disabled","Enabled" N
Boot Up Num-Lock
Status
"Off","On" N
Keyboardless Operation "Disabled","Enabled" N
Option Keys Display "Disabled","Enabled" N
Option Keys Display
Style
"Normal","Legacy" N
Startup Device Menu
Prompt
"Disabled","Enabled" N
Serial Number Style
"Legacy
Style","MTM&SN-1","MTM&SN-2","1S-M
TM-SN"
N
Note：
for “Serial Number Style”:
Legacy Style means display the legacy seven digit serial number
MTM&SN-1 means concatenation of Machine Type with Serial Number
(mmmmsssssss)
MTM&SN-2 means concatenation of Machine Type/Model and Serial Number
(mmmmmmmsssssss)
1S-MTM-SN means concatenation of "1S", Machine Type/Model and Serial Number
(1Smmmmmmmsssssss)

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Chapter 3. Typical Usage
Through WMI, you can configure BIOS settings in the
following ways:
·List BIOS settings
·Change BIOS settings
·Change the boot order (sometimes referred to as the startup
sequence)
·Load default BIOS settings
Listing current BIOS settings
For a list of all available BIOS settings that can be changed
through WMI on a specific computer, use the
Lenovo_BiosSetting class (see “List all BIOS settings on the
local computer” on page 16 and “List all BIOS settings on a
remote computer” on page 18 for sample scripts).
See Table 3 on page 4 for a list of available BIOS settings.
Changing BIOS settings
To change a BIOS setting, complete the following steps:
1. Identify the BIOS setting you want to change using the
Lenovo_BiosSetting class (see “List all BIOS settings on the local
computer” on page 16 and “List all BIOS settings on a remote
computer” on page 18 for sample scripts).
2. Identify the value to which the setting will be changed.
Note: See Table 4 on page 4 for a list of available values for a
particular setting.
3. Change the BIOS setting to the desired value using the
Lenovo_SetBiosSetting class, then use the Lenovo_SaveBiosSetting
class to save the settings (see “Set a single BIOS setting on the local
computer” on page 16 and “Set a single BIOS setting on a remote
computer” on page 17 for sample scripts).
Note: BIOS settings and values are case sensitive.
After making changes to the BIOS settings, you must reboot the
computer before the changes will take effect.
Changing the boot order
To change the boot order, complete the following steps:
1. Determine the current setting for “BootOrder” by using the

Lenovo BIOS Windows Management Instrumentation Interface Deployment Guide for Desktop
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Lenovo_BiosSetting class (see “List all BIOS settings on the local
computer” on page 16 and “List all BIOS settings on the remote
computer” on page 18for sample scripts).
2. To set a new boot order, use the Lenovo_SetBiosSetting class,
then use the Lenovo_SaveBiosSetting class to save the settings
(see “Set a single BIOS setting on the local computer” on page 16
and “Set a single BIOS setting on a remote computer” on page 17
for sample scripts). Specify a new boot order by listing the boot
devices in order, separated by colons. Devices that are not
specified are excluded from the boot order. In the following
example, the CD/DVD drive is the first boot device and hard
disk drive is the second boot device and so on.
Example: Change primary boot sequence,
Primary Boot Sequence,CD/DVD Drive:Hard Drive:Network
Card:USB Key:USB Floppy:USB Hard Disk
Restoring default settings
To restore default BIOS settings, use the Lenovo_LoadDefaultSettings class,
and then use the Lenovo_SaveBiosSettings class to save the BIOS changes
(see sample scripts).
Changing an existing hardware password
To update a password, specify a password type and format the
password. The format for password parameters is ″pap,abc,def,ascii,us″
with descriptions
in Table 5 (see “Set a Administrator password on the
local computer when a Administrator password exists” on page 20 and
“Set a Administrator password on a remote computer when a
Administrator password exists” on page 21 for sample scripts).
Table5.Passwordparametersformat,changingexistinghardwarepassword
Parameter Description Possible seletctions
Parameter 1 Password type
string
“pap”:Administrator password
“pop”:Power-on password
“uhdp0”: User password of HDD0
“mhdp0”:Master pasword of HDD0
“uhdp1”:User password of HDD1
“mhdp1”:Master password of HDD1
“uhdp2”:User password of HDD2
“mhdp2”:Mater password of HDD2
“uhdp3”:User password of HDD3
“mhdp3”:Master password of HDD3
“uhdp4”:User password of HDD4
“mhdp4”:Master password of HDD4
“uhdp5”:User password of HDD5
“mhdp5”:Master password of HDD5
Parameter 2
Current
password
string
“abc”:raw ascii character
“1e302e”:scancode
Parameter 3
New password
string
“def”:raw ascii character
“201221”:scancode
Parameter 4
Password
encoding
“ascii”
“Scancode”
Parameter 5
Keyboard ·“us″- English US, English UK,

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Languages
Chinese-Traditional, Danish, Dutch,
French-Canadian, Italian, Japanese,
Korean, Norwegian, Polish,
Portuguese,
Spanish-European, Spanish-Latin
American, Swiss, Turkish
·
″fr″ - French-European, Belgian
·
″gr″ - German, Czech, Slovak,
Slovenian
Limitations
The following WMI limitations exist for BIOS setup:
·Administrator password, POP,HDP and the item”Hardware Password
Manager” cannot be changed simutaneously during one power cycle. If
you want to change these settings, you must reboot the system after
changing one of them.
·A password cannot be set using this method when one does not already
exist. Passwords can only be updated or cleared.
·When user try to batch update BIOS settings, make sure that the related
item of each item is in correct state, because once one item’s related item is
Disabled or with special setting, this item will be hidden and can not be
updated through WMI. Please reference Table 4 for detail relationship
between items.