Lenovo 4156 Personal Computer User Manual


 
Specications
This section lists the physical specications for your computer.
Dimensions
Width: 179 mm (7.05 inches)
Height: 34.5 mm (1.36 inches)
Depth: 182 mm (7.17 inches)
Weight
Maximum conguration as shipped: 4.86 kg (10.71 lb) (with package)
Maximum conguration as shipped: 4.14 kg (9.13 lb) (without package)
Environment
Air temperature:
Operating: 10°C to 35°C (50°F to 95°F)
Storage: -40°C to 60°C (-40°F to 140°F) in original shipping package
Storage: -10°C to 60°C (14°F to 140°F) without package
Humidity:
Operating: 20% to 80% (non-condensing)
Storage: 20% to 90% (non-condensing)
Altitude:
Operating: -50 to 10 000 ft (-15.2 to 3048 m)
Storage: -50 to 35 000 ft (-15.2 to 10 668 m)
Electrical input
The ac power adapter input voltage: 100 to 240 V ac
Input frequency range: 50 to 60 Hz
Lenovo programs
Your computer comes with Lenovo programs to help you work more easily and securely. Depending on
the Windows operating system preinstalled, the programs might vary.
Accessing Lenovo programs on the Windows 7 operating system
On the Windows 7 operating system, you can access Lenovo programs from either the Lenovo
ThinkVantage
®
Tools program or from Control Panel.
Accessing Lenovo programs from the Lenovo ThinkVantage Tools program
To access Lenovo programs from the Lenovo ThinkVantage Tools program, click Start All Programs
Lenovo ThinkVantage Tools. Then double-click a program icon to access the program.
Note: If a program icon in the Lenovo ThinkVantage Tools program navigation window is dimmed, it
indicates that you need to install the program manually. To install the program manually, double-click the
program icon. Then, follow the instructions on the screen. When the installation process completes, the
program icon will be activated.
4 ThinkCentre User Guide