Oracle Sun Fire X4240, Service Manual

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Chapter 4 Servicing Motherboard Components 4-7
4.1.3 Removing DDR2 DIMMs
Caution – Ensure that all power is removed from the server before removing or
installing DDR2 DIMMs. You must disconnect the power cables before performing
this procedure.
1. Review Section 4.1.2, “DDR2 DIMM Guidelines” on page 4-4 for memory
configuration information.
2. Prepare the server for service.
a. Power off the server.
See Section 2.5, “Powering Off the Server” on page 2-4 .
b. Disconnect the power cord (or cords) from the power supply (or supplies).
See Section 2.5, “Powering Off the Server” on page 2-4 .
c. Slide the server out of the rack.
See Section 2.6, “Extending the Server to the Maintenance Position” on
page 2-6 .
d. Attach an antistatic wrist strap.
See Section 2.8, “Performing Electrostatic Discharge and Antistatic Prevention
Measures” on page 2-10 .
e. Remove the top cover.
See Section 2.9, “Removing the Top Cover” on page 2-12 .
3. Lift up the air duct. (
FIGURE 4-4
[1])
4. If you are replacing a faulty DDR2 DIMM, press the Remind button on the
motherboard to locate the DDR2 DIMMS that you want to replace.
The faulty DDR2 DIMM LED flashes when the Fault Remind button is pressed
and held. All faulty DDR2 DIMMs are indicated with an amber LED, so that you
can install the replacement DDR2 DIMM in the same location.
Tip – Make a note of the faulty DDR2 DIMM location.
5. Push down on the ejector tabs on each side of the DDR2 DIMM until the
FB-DIMM is released. [2]
6. Grasp the top corners of the faulty DDR2 DIMM and remove it from the server.