ProDesk 490
Front panel components
Drive conguration may vary by model. Some models have a bezel blank covering the optical drive bay.
1 Slim Optical Drive (optional) 5 Hard Drive Activity Light
2 Dual-State Power Button 6 USB 3.0 Ports (blue)
3 Microphone Connector 7 Headphone Connector
4 SD Card Reader (optional)
NOTE: The Power On Light is normally white when the power is on. If it is ashing red, there is a problem with the
computer and it is displaying a diagnostic code. Refer to Interpreting system validation diagnostic front panel LEDs and
audible codes on page 116 to interpret the code.
6 Chapter 1 Product features
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