Lenovo ThinkCentre M55 User Manual

PC-Doctor for Windows
PC-Doctor for Windows is a diagnostic program that works through the Windows
operating system. The PC-Doctor for Windows diagnostic program enables you to
view symptoms and solutions for computer problems, access the Lenovo
troubleshooting center, update system drivers, and review system information.
To open PC-Doctor for Windows, click Start from the Windows desktop, select All
Programs, select PC-Doctor for Windows, and click PC-Doctor for Windows.
Follow the instructions on the screen. For additional information about running the
diagnostic program, refer to the PC-Doctor for Windows help system.
If you still suspect a problem after PC-Doctor for Windows runs successfully, run
PC-Doctor for DOS to help you diagnose your computer problem.
PC-Doctor for DOS
The PC-Doctor for DOS diagnostic program is part of the Rescue and Recovery
workspace and runs independently of the Windows operating system. Use
PC-Doctor for DOS, if you are unable to start the Windows operating system or if
PC-Doctor for Windows has not been successful in isolating a possible problem.
You can run PC-Doctor for DOS from a diagnostic CD image or diagnostic
diskettes that you create. You can also run PC-Doctor for DOS from the Rescue and
Recovery workspace.
Note: Be sure to create a diagnostic CD image or diagnostic diskettes in case you
are unable to run PC-Doctor for DOS from the Rescue and Recovery
workspace.
Creating a diagnostic CD image
To create a diagnostic CD image, download a self-starting bootable CD image
(known as an .iso image) of the diagnostic program from http://
www.lenovo.com/support/.
After you download the image, you can create the CD
using any CD burning software.
If your computer does not have a CD burner or you do not have Internet access,
see “Creating diagnostic diskettes.”
Creating diagnostic diskettes
To create diagnostic diskettes, download the PC-Doctor for DOS diagnostic
program from http://www.lenovo.com/support/ onto two blank, formatted
diskettes.
If you do not have Internet access, create the diagnostic diskettes using the
following procedure:
Note: You will need a diskette drive on your computer or a USB diskette drive to
complete this procedure.
1. Shut down the operating system and turn off the computer.
2. If you are using a USB diskette drive, plug it into the computer.
3. Repeatedly press and release the F11 key as you turn on the computer.
4. When you hear beeps or see a logo screen, stop pressing the F11 key. The
Rescue and Recovery workspace opens.
Note: For some models, press the Esc key to enter Rescue and Recovery.
5. From the Rescue and Recovery workspace, select Create diagnostic disks.
Chapter 7. Troubleshooting and diagnostics 57

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