Microtower (MT) Front Panel Components
Drive configuration may vary by model. Some models have a bezel blank covering one or more drive
bays.
Table 1-2 Front Panel Components
1 5.25-inch Optical Drives 5 3.5-inch Media Card Reader (optional)
2 Hard Drive Activity Light 6 Dual-State Power Button
3 Microphone/Headphone Connector 7 Power On Light
4 USB (Universal Serial Bus) 2.0 Ports 8 Headphone Connector
NOTE: When a device is plugged into the Microphone/Headphone Connector, a dialog box will pop up asking if
you want to use the connector for a microphone Line-In device or a headphone. You can reconfigure the
connector at any time by double-clicking the Realtek HD Audio Manager icon in the Windows taskbar.
NOTE: The Power On Light is normally green when the power is on. If it is flashing red, there is a problem with
the computer and it is displaying a diagnostic code. Refer to
Interpreting POST Diagnostic Front Panel LEDs and
Audible Codes on page 301 to interpret the code.
4 Chapter 1 Product Features
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