Removing The Display Board - HP Integrity rx6600 User's & Service Manual

The display board contains the power switch and the following status LEDs:
• Power LED
• System health LED
• Internal health LED
• External health LED
• Locator LED
For more detailed information about front panel LED behavior, see Chapter 5, "Troubleshooting," on
page 149.
The display board includes a USB connector that supports USB 2.0 (480 Mbps).
The diagnostic panel provides failure identification for each component that has a detectable error associated
with it. For more information on the diagnostic panel LEDs, see Chapter 5, "Troubleshooting," on page 149.
WARNING Ensure that the system is powered off and all power sources have been disconnected
from the server prior to performing this procedure.
Voltages are present at various locations within the server whenever an ac power
source is connected. This voltage is present even when the main power switch is in
the off position.
Failure to observe this warning can result in personal injury or damage to
equipment.
CAUTION Observe all ESD safety precautions before attempting this procedure. Failure to follow ESD
safety precautions can result in damage to the server.

Removing the Display Board

To remove the display board, follow these steps:
Step 1. Power off the server and disconnect the power cables. See "Powering Off the Server" on page 50.
Step 2. If rack installed, slide the server completely out from the rack. See "Extending the Server from the
Rack" on page 57.
Step 3. Remove the top cover. See "Removing the Top Cover" on page 58.
Step 4. Remove the air baffle.
Step 5. Disconnect the USB cable from the connector on the display board.
NOTE
Step 6. Remove the DVD drive. See "Removing the DVD Drive" on page 83.
Step 7. Locate the knurled thumbscrew behind the DVD drive that holds the display board in place.
Step 8. Turn the thumbscrew counterclockwise until the board releases from the chassis.
Chapter 4
The USB cable connector is an RJ45 connector; it is not a typical USB connector.
Removal and Replacement
Removing and Replacing the Display Board
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