
System Overview
HP x4000 Control Panel
Chapter 122
• Diag LEDs: These four LEDs can be off, green, yellow, or red. The
color pattern lets you diagnose problems with your Workstation. For
more information, see “Understanding the Diag LEDs” on page 212.
Figure 1-4 Control Panel
Power On/Off
and Power LED
Hard Disk
Activity LED
Reset Button
Network
Activity LED
Diag LEDs
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