Lenovo 4271 Personal Computer User Manual


 
Video subsystem
v Two Peripheral Component Interconnect (PCI) Express x16 card slots on the
system board for discrete graphics cards (varies by model type)
Audio subsystem
v Integrated high-definition (HD) audio
v Microphone connector and headphone connector on the front panel
v Eight audio connectors on the rear panel
Audio line-in connector
Audio line-out front speaker connector
Audio line-out rear speaker connector
Audio line-out side speaker connector
Audio line-out subwoofer/center speaker connector
Microphone connector
Optical Sony Philips Digital Interconnect Format (SPDIF) in connector
Optical SPDIF out connector
v Internal speakers
Connectivity
v One or two 10/100/1000 Mbps Ethernet controller(s)
System management features
v Ability to store the power-on self-test (POST) hardware test results
v Advanced Configuration and Power Interface (ACPI) support
v Alert Standard Format (ASF) 2.0
v Automatic power-on startup
v Preboot Execution Environment (PXE)
v System Management (SM) Basic Input/Output System (BIOS) and SM software
v Wake on LAN
v Wake on Ring (in the Setup Utility program, this feature is called Serial Port
Ring Detect for an external modem)
v Windows Management Instrumentation (WMI)
Input/Output (I/O) features
v 9-pin serial port (available on some models)
v 10 USB (Universal Serial Bus) connectors
v Eight audio connectors on the rear panel
v One external Serial Advanced Technology Attachment (eSATA) connector
v One or two Ethernet connector(s)
v Two audio connectors on the front panel (microphone connector and headphone
connector)
v Two IEEE 1394 connectors (available on some models)
For more information about I/O features, see “Locating connectors on the rear of
your computer” on page 7.
2 User Guide