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12 About Your System
Front-Panel Features and Indicators
Figure 1-1. Front Panel Features and Indicators
Item Indicator, Button, or
1 Optical drive
Optional internal SATA DVD-ROM
NOTE: DVD devices are data only.
2 Front bezel lock Secures the front bezel to the system.
3 Front bezel Covers the system's front-loading hard drives.
4 USB connectors (2) Connects USB devices to the system. The ports
are USB 2.0-compliant.
5 NMI button Used to troubleshoot software and device driver
errors when using certain operating systems.
This button can be pressed using the end of a
Use this button only if directed to do so by
qualified support personnel or by the operating
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