Lenovo ThinkCentre M79 Hardware Maintenance Manual page 46

• Optical drive bay
• PCI card slot
• PCI Express x1 card slots
• PCI Express x16 graphics card slot
For more information, see "Locating internal drives" on page 35 and "Locating parts on the system board"
on page 34.
Power supply
• 180-watt automatic voltage-sensing power supply
• 240-watt automatic voltage-sensing power supply
Wireless features
Depending on your computer model, the following wireless features are supported:
• Wireless local area network (LAN)
• Bluetooth
System management features
• Ability to store power-on self-test (POST) hardware test results
• Desktop Management Interface (DMI)
Desktop Management Interface provides a common path for users to access information about all
aspects of a computer. The information includes processor type, installation date, attached printers and
other peripherals, power sources, maintenance history, and so on.
• ErP LPS compliance mode
The energy-related products directive (ErP) lowest power state (LPS) compliance mode reduces the
consumption of electricity when your computer is in sleep or off mode. For more information, see
"Enabling ErP LPS compliance mode" on page 66.
• Intelligent Cooling Engine (ICE)
The Intelligent Cooling Engine is a system thermal management solution that enables your computer
to run with better thermal and acoustic performance. The ICE function also monitors the thermal
performance of your computer to identify thermal problems. For more information, see "ICE performance
mode" on page 67 and "ICE thermal alert" on page 67.
• Preboot Execution Environment (PXE)
Preboot Execution Environment enables computers to start through a network interface independent of
data storage devices (such as the hard disk drive) or installed operating systems.
• System Management (SM) Basic Input/Output System (BIOS) and SM software
The SMBIOS specification defines data structures and access methods that can be used to read
management data stored in the BIOS of a computer.
• Wake on LAN
Wake on LAN is an Ethernet computer networking standard that allows a computer to be turned on
or woken up by a network message. The message is usually sent by a program running on another
computer on the same local area network.
• Windows Management Instrumentation (WMI)
Windows Management Instrumentation is a set of extensions to the Windows Driver Model. It provides an
operating system interface through which instrumented components provide information and notification.
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ThinkCentre M79 Hardware Maintenance Manual