Lenovo 4105 Personal Computer User Manual


 
the microprocessor model and the type, speed, size (capacity), and number of DIMMs installed. Refer to
Appendix B “System memory speed” on page 49 for the information on the supported system memory
speed for your own computer model.
Internal drives
3.5-inch standard half-high diskette drive (optional)
Card reader (optional)
Serial Advanced Technology Attachment (SATA) internal hard disk drive or Serial attached SCSI (SAS)
internal hard disk drive
Optical drive
Video subsystem
Graphics card (varies by model type)
Audio subsystem
Integrated high-denition (HD) audio
Headphone connector and microphone connector on the front panel
Eight audio connectors on the rear panel (audio line-in connector, audio line-out front speaker connector,
microphone connector, audio line-out subwoofer/center speaker connector, audio line-out rear speaker
connector, audio line-out side speaker connector, optical SPDIF in connector, and optical SPDIF out
connector)
Internal speaker
Connectivity
Two 10/100/1000 Mbps integrated Ethernet connectors
Peripheral Component Interconnect (PCI) V.90 Data/Fax modem (some models)
System management features
Ability to store POST hardware test results
Alert Standard Format (ASF) 2.0
Automatic power-on startup
Preboot Execution Environment (PXE)
Remote Administration
System Management (SM) Basic Input/Output System (BIOS) and SM software
Wake on LAN
Wake on Ring (in the Setup Utility program, this feature is called Serial Port Ring Detect for an external
modem)
Input/Output (I/O) features
9-pin serial port
Eight audio connectors on the rear panel (audio line-in connector, audio line-out front speaker connector,
microphone connector, audio line-out subwoofer/center speaker connector, audio line-out rear speaker
connector, audio line-out side speaker connector, optical SPDIF in connector, and optical SPDIF out
connector)
Eight rear and two front USB connectors
eSATA connector
12 ThinkStation User Guide