Lenovo 4004 Personal Computer User Manual


 
WiFi with Bluetooth module (optional)
System management features
Ability to store power-on self-test (POST) hardware test results
Desktop Management Interface (DMI)
Desktop Management Interface provides a common path for users to access information about all
aspects of a computer, including processor type, installation date, attached printers and other peripherals,
power sources, and maintenance history.
ErP compliance mode
The energy-related products directive (ErP) compliance mode reduces the consumption of electricity
when your computer is in standby or off mode. For more information, see “Enabling ErP compliance
mode” on page 90
.
Preboot Execution Environment (PXE)
The Preboot Execution Environment is an environment to start computers using a network interface
independent of data storage devices (such as the hard disk drive) or installed operating systems.
System Management (SM) Basic Input/Output System (BIOS) and SM software
The SM BIOS specication denes data structures and access methods in a BIOS that allows a user or
application to store and retrieve information specic about the computer in question.
Wake on LAN
Wake on LAN is an Ethernet computer networking standard that allows a computer to be turned on
or woken up by a network message. The message is usually sent by a program running on another
computer on the same local area network.
Input/Output (I/O) features
Five Universal Serial Bus (USB) 2.0 connectors (two on the front panel and three on the rear panel)
One DisplayPort connector
One Ethernet connector
One optional port (for installing a serial port, a USB 2.0 connector, or an optional WiFi card module
antenna)
One VGA monitor connector
Two audio connectors on the front panel (microphone connector and headphone connector)
For more information, see “Locating connectors, controls, and indicators on the front of your computer” on
page 9 and “Locating connectors on the rear of your computer” on page 10.
Expansion
One hard disk drive bay
One mini PCI Express card slot
Power adapter
Your computer comes with a 65-watt ac power adapter.
Security features
Computrace Agent software embedded in rmware
Cover presence switch (also called intrusion switch)
Ability to enable or disable a device
2 ThinkCentre User Guide