Lenovo 4157, 4105, 4217 manual Internal drives, Video subsystem, Audio subsystem, Connectivity

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

12ThinkStation User Guide