Lenovo H50-50 Desktop - Manual (Page 31)

Hardware components
The following illustration shows the components that make up your computer.
1. Microprocessor fan and heatsink 5. System fan
2. Memory modules 6. Optical drive
3. PCI express adapter card 7. Hard disk drive
4. PCI express adapter connectors
Identifying parts on the motherboard
The motherboard (sometimes called the planar or system board) is the main circuit board in your computer.
It provides basic computing functions and supports a variety of devices that are factory-installed or that
you can install later. The following illustration shows the location of connectors and components on the
front of the motherboard.
Chapter 7 . Locating connectors, controls and components 25