4-10 Sun Fire X4450 Server Service Manual • November 2009
4.1.5 Installing Additional FB-DIMMs
Before you begin, see Section 4.1.2, “FB-DIMM Guidelines” on page 4-4, for
information about FB-DIMM configuration guidelines.
Caution – Ensure that all power is removed from the server before installing
FB-DIMMs or damage to the FB-DIMMs might occur. You must disconnect all power
cables from the system before performing this procedure.
1. Unpackage the replacement FB-DIMMs and place them on an antistatic mat.
2. Ensure that the ejector tabs are in the open position.
3. Line up the FB-DIMM with the connector (
FIGURE 4-5).
Align the FB-DIMM notch with the key in the connector. This ensures that the
FB-DIMM is oriented correctly.
4. Push the FB-DIMM into the connector until the ejector tabs lock the FB-DIMM
in place.
If the FB-DIMM does not easily seat into the connector, verify that the orientation
of the FB-DIMM is as shown in
FIGURE 4-4. If the orientation is reversed, damage
to the FB-DIMM might occur.
5. Repeat Step 2 through Step 4 until all FB-DIMMs are installed.
6. Install the top cover.
See Section 6.1, “Installing the Top Cover” on page 6-2.
7. Slide the server into the rack.
See Section 6.3, “Returning the Server to the Normal Rack Position” on page 6-4.
8. Reconnect the power cord (or cords) to the power supply (or supplies).
Verify that the AC Present LED is lit.
See Section 6.4, “Powering On the Server” on page 6-5.
9. Power on the server.
See Section 6.4, “Powering On the Server” on page 6-5.
4.2 Servicing the Memory Tray
You must remove the memory tray when removing and installing the motherboard.
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