Table 76 (page 236) lists the LAN core I/O card location based on the number of installed SAS
core I/O cards.
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: PCI/PCI-X slots 1 and 2 are dedicated for use by core I/O cards. Do not place any
other PCI/PCI-X expansion cards in slots 1 and 2. Slots 1 and 2 are not hot-plug capable.
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 LAN Core I/O Card
To remove the LAN core I/O card, follow these steps:
1. Power off the server and disconnect the power cables. See “Powering Off the Server”
(page 90).
2. Disconnect all external cables attached to the card.
3. If rack installed, slide the server completely out from the rack. See “Extending the Server from
the Rack” (page 176).
4. Remove the top cover. See “Removing the Top Cover” (page 178).
5. Remove the slotted T15 screw that attaches the card bulkhead to the chassis; use a T15
screwdriver to turn the screw counterclockwise until it is free from the chassis.
6. Grasp the card by the edges and lift it out of the chassis.
Replacing the LAN Core I/O Card
To replace the LAN core I/O card, follow these steps:
1. Insert the replacement card into the dedicated LAN core I/O slot.
a. Insert the tab at the base of the card bulkhead into the slot in the chassis.
b. Align the card connectors with the slots on the I/O board.
c. Apply firm, even pressure to both sides of the card until it fully seats into the slot.
2. Replace the slotted T15 screw that attaches the card bulkhead to the chassis; use a T15
screwdriver to turn the screw clockwise until it tightens to the chassis.
3. Replace the top cover. See “Replacing the Top Cover” (page 179).
4. If rack installed, slide the server completely into the rack. See “Inserting the Server into the
Rack” (page 177).
5. Reconnect all external cables to the card.
6. Reconnect the power cables and power on the server. See “Powering On the Server” (page 90).
Removing and Replacing the Display Board
The display board is a combination board that supports the following server components:
• Power switch and status LEDs
• DVD drive
• Front panel USB port
• Diagnostic panel
238 Removing and Replacing Server Components
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