Lenovo 5057 Personal Computer User Manual


 
Audio line-in connector, audio line-out connector, and microphone connector on the rear panel
Internal speaker (available in some models)
Connectivity
10/100/1000 Mbps integrated Ethernet controller
System management features
Ability to store the power-on self-test (POST) hardware test results
Advanced Conguration and Power Interface (ACPI)
Automatic power-on startup
Desktop Management Interface (DMI)
Preboot Execution Environment (PXE)
System Management (SM) Basic Input/Output System (BIOS) and SM software
Wake on LAN (WOL)
Windows Management Instrumentation (WMI) (WMI is the infrastructure for management data and
operations on Windows operating systems.)
Input/Output (I/O) features
9-pin serial port (one standard and one optional)
25-pin parallel port (optional through your PCI card in some models)
Ethernet connector
PS/2 keyboard connector
PS/2 mouse connector
Six Universal Serial Bus (USB) 2.0 connectors (two on the front panel and four on the rear panel; there
might also be two optional USB connectors on the rear panel)
Two audio connectors on the front panel (headphone connector and microphone connector)
Three audio connectors on the rear panel (audio line-in connector, audio line-out connector, and
microphone connector)
VGA monitor connector and DVI monitor connector
For more information, refer to “Locating connectors, controls, and indicators on the front of your computer”
on page 6
and “Locating connectors and parts on the rear of your computer” on page 7.
Expansion
One optical drive bay
One slim card reader drive bay
One PCI card slot
One PCI Express x16 graphics card slot
Two hard disk drive bays (one standard and one optional)
Two PCI Express x1 card slots
Power supply
Your computer comes with one of the following power supplies:
280-watt power supply with manual voltage-selection switch
2 ThinkCentre User Guide