Sun Microsystems Sun Fire X4140, Руководство по обслуживанию

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4-2 Sun Fire X4140 Server Service Manual • September 2010
4.1 Servicing DDR2 DIMMs
This section describes how to diagnose and replace faulty DDR2 DIMMs (DDR2
DIMMs). The following topics are covered:
■
Section 4.1.1, “Identifying Faulty DDR2 DIMMs” on page 4-2
■
Section 4.1.2, “DDR2 DIMM Guidelines” on page 4-3
■
Includes additional DDR2 DIMM information.
■
Section 4.1.3, “Removing DDR2 DIMMs” on page 4-6
■
Section 4.1.4, “Installing DDR2 DIMMs” on page 4-7
■
Section 4.1.5, “Installing Additional DDR2 DIMMs” on page 4-9
■
How to upgrade the server with additional DDR2 DIMMs.
Note – CRU : This customer-replaceable unit can be replaced by anyone.
Caution – This procedure requires that you handle components that are sensitive to
static discharge. This sensitivity can cause the component to fail. To avoid damage,
ensure that you follow antistatic practices as described in
Section 2.7, “Performing
Electrostatic Discharge and Antistatic Prevention Measures” on page 2-9 .
4.1.1 Identifying Faulty DDR2 DIMMs
The Sun Fire X4140 Server Service Required LED is lit if the system detects a DDR2
DIMM fault.
To use the rear panel Locator button to identify faulty DDR2 DIMMs:
1. Unplug all power cords from the rear panel.
2. Press the remind button (
FIGURE 4-1
).
3. Note the location of faulty DDR2 DIMMs.
Faulty DDR2 DIMMs are identified with a corresponding amber LED on the
motherboard.
4. Ensure that all DDR2 DIMMs are seated correctly in their slots. If re-seating the
DIMM does not fix the problem, remove and replace the faulty DIMM.