Identifying Parts On The System Board - Lenovo H405 Hardware Maintenance Manual

Hardware Maintenance Manual

Identifying parts on the system board

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Voltage selection switch (selected models only)
Power connector
PS/2 keyboard connector
PS/2 mouse connector
HDMI connector (selected models only)
On-board VGA connector (selected models only)
USB connectors (4)
Ethernet connector
Microphone connector
Audio line-out connector
Audio line-in connector
PCI Express x16 graphics adapter connector (Some models are
equipped with a graphics card)
PCI Express x1 adapter connector (Some models are equipped with a
WIFI card or TV tuner card)
The system board (sometimes called the motherboard) is the main
circuit board in your computer. It provides basic computer functions and
supports a variety of devices that are factory-installed or that you can
install later.
The following illustrations show the locations of parts on the system board
(Only one of below system boards was preinstalled on your computer.).