Maintenance and Service Guide HP ProDesk 400 G1 Microtower HP ProDesk 480 G1 Microtower HP ProDesk 490 G1 Microtower HP ProDesk 400 G1 Small Form Factor

Rear panel components
Microtower (model 400)
1 Power Cord Connector 7 Line-Out Connector for powered audio
devices (green)
2 Power Indicator Light 8 Voltage Select Switch
3
PS/2 Keyboard Connector (purple) 9 PS/2 Mouse Connector (green)
4
Serial Connector 10 RJ-45 Network Connector
5
USB 2.0 Ports (black) 11 VGA Monitor Connector
6
DVI-D Monitor Connector 12 Line-In Audio Connector (blue)
NOTE: An optional second serial port and an optional parallel port are available from HP.
When a graphics card is installed in one of the system board slots, the video connectors on the graphics card and
the integrated graphics on the system board may be used at the same time. However, for such a configuration, only
the display connected to the discrete graphics card will display POST messages.
The system board graphics can be disabled by changing settings in Computer Setup.
Rear panel components
5