Lenovo 7844B4U User Manual page 10

Audio subsystem
v Integrated high-definition (HD) audio
v Headphone connector and microphone connector on the front panel
v Audio line-in connector, audio line-out connector, and microphone connector on
Connectivity
v 10/100/1000 Mbps integrated Ethernet controller
System management features
v Ability to store the power-on self-test (POST) hardware test results
v Advanced Configuration and Power Interface (ACPI)
v Automatic power-on startup
v Desktop Management Interface (DMI)
v Intel Trusted Execution Technology (Intel TXT)
v Preboot Execution Environment (PXE)
v System Management (SM) Basic Input/Output System (BIOS) and SM software
v Wake on LAN (WOL)
v Windows Management Instrumentation (WMI)
Input/Output (I/O) features
v Ethernet connector
v One 9-pin serial port
v Six Universal Serial Bus (USB) connectors
v Two audio connectors on the front panel
v Three audio connectors on the rear panel
v VGA monitor connector on the rear panel
For more information, refer to "Locating connectors, controls, and indicators on the
front of your computer" on page 7 and "Locating connectors and parts on the rear
of your computer" on page 8.
Expansion
v One hard disk drive bay
v One optical drive bay
v One slim card reader drive bay
v One PCI card slot
v One PCI Express x16 graphics card slot
v Two PCI Express x1 card slots
Power supply
v 180-watt power supply with a manual voltage-selection switch
2
User Guide
the rear panel
(WMI is the infrastructure for management data and operations on Windows
operating systems.)
(two USB connectors on the front panel and four USB connectors on the rear
panel)
(headphone connector and microphone connector)
(audio line-in connector, audio line-out connector, and microphone connector)