Lenovo THINKSTATION 4105 - Manual (Page 18)

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-definition (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