Lenovo ThinkCentre M55 User Manual

v Client Security Solutions
v Factory Recovery
v System Updates
v Service and support
Note:
ThinkVantage Technologies are only available on select Lenovo computers.
To access the ThinkVantage Productivity Center program, click Start, select All
Programs, select ThinkVantage, and click Productivity Center.
Access Help
The Access Help online help system provides information about getting started,
doing basic tasks, customizing settings for your personal preference, protecting
data, expanding and upgrading, and troubleshooting.
To open Access Help, click Start, select All Programs, select ThinkVantage, and
click Access Help. After you have opened Access Help, use the left panel to make
a selection from the Contents or Index tab, or use the Search tab to find a
particular word or phrase.
Warranty and safety
The warranty and safety information that is provided with your computer contains
information on safety, warranty, notices, and Customer Replacement Units (CRUs).
For more information on CRUs, see “Service” on page vi.
www.lenovo.com
The Lenovo Web site (www.lenovo.com) provides an extensive amount of
information and services to help you buy, upgrade, and maintain your computer.
You can access the most up-to-date information for your computer on the Lenovo
Web site. From the www.lenovo.com Web site, you can also:
v Shop for desktop and notebook computers, monitors, projectors, upgrades and
accessories for your computer, and special offers.
v Purchase additional services, such as support for hardware, operating systems,
application programs, network setup and configuration, and custom
installations.
v Purchase upgrades and extended hardware repair services.
v Download the latest device drivers and software updates for your computer
model.
v Access the online manuals for your products.
v Access the Lenovo Statement of Limited Warranty.
v Access troubleshooting and support information for your computer model and
other supported products.
v Find the service and support phone number for your country or region.
v Find a service provider located near you.
Help and service
If you need help and service for your computer, you will find a wide variety of
sources available to help you.
62 User Guide

Lenovo ThinkCentre M55 Specifications

General

Tcase	61.4 °C
Bus type	FSB
Stepping	R0
Processor cache	2 MB
Processor cores	2
Processor model	E6300
System bus rate	- GT/s
Processor family	Intel® Core™2 Duo
Processor socket	LGA 775 (Socket T)
Processor codename	Conroe
Processing Die size	111 mm²
Processor frequency	1.86 GHz
Processor cache type	L2
Processor lithography	65 nm
Processor manufacturer	Intel
Processor front side bus	1066 MHz
Processor operating modes	64-bit
ECC supported by processor	No
Thermal Design Power (TDP)	65 W
Number of processors installed	1
CPU multiplier (bus/core ratio)	7
Number of Processing Die Transistors	167 M
Audio system	High Definition Audio
Product type	PC
Motherboard chipset	Intel® Q963 Express
Memory slots	2x DIMM
Internal memory	1 GB
Memory clock speed	667 MHz
Internal memory type	DDR2-SDRAM
Maximum internal memory	4 GB
Memory layout (slots x size)	2 x 0.5 GB
HDD speed	7200 RPM
HDD interface	SATA
Optical drive type	DVD-ROM
Total storage capacity	80 GB
Power supply type	AC
Power requirements	120 - 230 V
External drive bays	1 x 5.25\
Internal drive bays	1 x 3.5\
Networking features	Gigabit Ethernet
Intel segment tagging	Enterprise, Professional
Compliance industry standards	IEEE802.3, IEEE802.3u, IEEE802.3ab
On-board graphics card	Yes
Discrete graphics card model	Intel® GMA 3000
Maximum graphics card memory	- GB
Operating system installed	Windows Vista Business
USB 2.0 ports quantity	8
Firewire (IEEE 1394) ports	0
Cabling technology	10/100/1000Base-T(X)
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Power supply	225 W
Chassis type	SFF
Product color	Black
Processor code	SLGW2
Processor ARK ID	27248
Processor package size	37.5 x 37.5 mm

Weight and Dimensions

Depth	358 mm
Width	310 mm
Height	88 mm
Weight	8500 g