Lenovo ThinkCentre A52 8157 User Manual page 19

Expansion
v Four drive bays (five bays some models)
v Two standard peripheral component interconnect (PCI) adapter connectors
v One PCI Express (x1) adapter connector
v One PCI Express (x16) graphics adapter connector
Power
v 310 W power supply with manual voltage selection switch (some models)
v Automatic 50/60 Hz input frequency switching
v Advanced Power Management support
v Advanced Configuration and Power Interface (ACPI) support
Security features
v Keyboard with fingerprint reader (some models, use the ThinkVantage
v User and administrator passwords for BIOS access
v User and master passwords for hard disk drive (some models)
v Support for the addition of a padlock to secure the cover
v Support for the addition of an integrated cable lock to secure the cover
v Cover present switch
v Startup sequence control
v Startup without diskette drive, keyboard, or mouse
v Unattended start mode
v Diskette and hard disk I/O control
v Serial and parallel port I/O control
v Security profile by device
Preinstalled software
Your computer might come with preinstalled software. If it does, an operating
system, device drivers to support built-in features, and other support programs are
included.
Operating systems preinstalled (varies by model type)
Note: Not all countries or regions will have these operating systems.
v Microsoft
v Microsoft Windows XP Professional
Operating systems certified or tested for compatibility
v Microsoft Windows 2000
v Linux
1. The operating systems listed here are being certified or tested for compatibility at the time this publication goes to press.
Additional operating systems might be identified by Lenovo as compatible with your computer following the publication of this
booklet. Corrections and additions to this list are subject to change. To determine if an operating system has been certified or
tested for compatibility, check the Web site of the operating system vendor.
Productivity Center program to find more information)
® ®
Windows XP Home
®
1
Chapter 1. Installing options
3