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

Front panel components

Microtower (model 400/490)

Drive configuration may vary by model. Some models have a bezel blank covering one or more drive

bays.

1 5.25-inch Optical Drive (optional) 6 Microphone Connector

2 5.25-inch Half-Height Drive Bay (behind bezel) 7 Hard Drive Activity Light

3 3.5-inch Media Card Reader (optional) 8 USB 3.0 Ports (blue)

4 Dual-State Power Button 9 Headphone Connector

5 USB 2.0 Ports (black)

NOTE: The Power On Light is normally white when the power is on. If it is flashing red, there is a problem with the

computer and it is displaying a diagnostic code.

Front panel components