The following table shows the installation sequence for memory rank sparing
mode:
Table 7. Memory rank sparing mode DIMM population sequence
Number of DIMMs
Number of installed
microprocessor
DIMM connector
First pair of DIMMs
1
1, 2
Second pair of DIMMs
1
4, 5
Third pair of DIMMs
1
8, 9
Fourth pair of DIMMs
1
11, 12
Fifth pair of DIMMs
1
7, 10
Sixth pair of DIMMs
1
3, 6
Seventh pair of DIMMs
2
13, 14
Eighth pair of DIMMs
2
16, 17
Ninth pair of DIMMs
2
20, 21
Tenth pair of DIMMs
2
23, 24
Eleventh pair of DIMMs
2
19, 22
Twelfth pair of DIMMs
2
15, 18
Note:
DIMM connectors 3, 6, 7, 10, 15, 18, 19, and 22 are not used in memory rank sparing mode when UDIMMs
are installed in the server.
Installing a DIMM
Use this information to install a DIMM.
Before you begin
Read the safety information in “Safety” on page vii and “Installation guidelines”
on page 34.
If you are replacing a component or installing an optional device in the server, you
need to turn off the server and peripheral devices, and disconnect the power cords
and all external cables.
About this task
To install a DIMM, complete the following steps.
Procedure
1.
Unlock and remove the left-side cover (see “Removing the left-side cover” on
page 39).
2.
Remove the air baffle if installed (see “Removing the air baffle” on page 210).
3.
Open the retaining clip on each end of the DIMM connector.
Attention:
To avoid breaking the retaining clips or damaging the DIMM
connectors, open and close the clips gently.
Chapter 2. Installing optional devices
65
Summary of Contents for 7383
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