Lenovo ThinkCentre M81 (English) User Guide - Page 15

Input/Output I/O features, Expansion, Power supply, Security features, Preinstalled software programs - graphics card

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Input/Output (I/O) features • 9-pin serial port (one standard and one optional) • Eight Universal Serial Bus (USB) connectors (two on the front panel and six on the rear panel) • One Ethernet connector • One DisplayPort connector • One VGA monitor connector • One Personal System/2 (PS/2) keyboard connector (optional) • One PS/2 mouse connector (optional) • Three audio connectors on the rear panel (audio line-in connector, audio line-out connector, and microphone connector) • Two audio connectors on the front panel (microphone connector and headphone connector) For more information, see "Locating connectors, controls, and indicators on the front of your computer" on page 9 and "Locating connectors on the rear of your computer" on page 10. Expansion • Two hard disk drive bays (one standard and one optional) • Two optical drive bays • Two PCI card slots • One PCI Express x1 card slot • One PCI Express x16 graphics card slot Power supply Your computer comes with 280-watt automatic voltage-sensing power supply. Security features • Computrace Agent software embedded in firmware • Cover presence switch (also called intrusion switch) • Ability to enable or disable a device • Ability to enable and disable USB connectors individually • Keyboard with fingerprint reader (shipped with some models) • Power-on password (POP), administrator password, and hard disk drive password to deter unauthorized use of your computer • Startup sequence control • Startup without keyboard or mouse • Support for an integrated cable lock (Kensington lock) • Support for a padlock • Trusted Platform Module (TPM) For more information, see Chapter 4 "Security" on page 27. Preinstalled software programs Your computer is preinstalled with software programs to help you work more easily and securely. For more information, see "Software overview" on page 5. Chapter 1. Product overview 3

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Input/Output (I/O) features
•
9-pin serial port (one standard and one optional)
•
Eight Universal Serial Bus (USB) connectors (two on the front panel and six on the rear panel)
•
One Ethernet connector
•
One DisplayPort connector
•
One VGA monitor connector
•
One Personal System/2 (PS/2) keyboard connector (optional)
•
One PS/2 mouse connector (optional)
•
Three audio connectors on the rear panel (audio line-in connector, audio line-out connector, and
microphone connector)
•
Two audio connectors on the front panel (microphone connector and headphone connector)
For more information, see “Locating connectors, controls, and indicators on the front of your computer” on
page 9 and “Locating connectors on the rear of your computer” on page 10.
Expansion
•
Two hard disk drive bays (one standard and one optional)
•
Two optical drive bays
•
Two PCI card slots
•
One PCI Express x1 card slot
•
One PCI Express x16 graphics card slot
Power supply
Your computer comes with 280-watt automatic voltage-sensing power supply.
Security features
•
Computrace Agent software embedded in firmware
•
Cover presence switch (also called intrusion switch)
•
Ability to enable or disable a device
•
Ability to enable and disable USB connectors individually
•
Keyboard with fingerprint reader (shipped with some models)
•
Power-on password (POP), administrator password, and hard disk drive password to deter unauthorized
use of your computer
•
Startup sequence control
•
Startup without keyboard or mouse
•
Support for an integrated cable lock (Kensington lock)
•
Support for a padlock
•
Trusted Platform Module (TPM)
For more information, see Chapter 4 “Security” on page 27.
Preinstalled software programs
Your computer is preinstalled with software programs to help you work more easily and securely. For more
information, see “Software overview” on page 5.
Chapter 1
.
Product overview
3