Replacing A Memory Module - Lenovo HX3510-G Installation And Service Manual

• Install at least two single-rank or dual-rank DIMMs in a channel.
Table 14. Memory rank sparing mode DIMM population sequence
Number of DIMMs
First pair of DIMMs
Second pair of DIMMs
Third pair of DIMMs
Fourth pair of DIMMs
Fifth pair of DIMMs
Sixth pair of DIMMs
Seventh pair of DIMMs
Eighth pair of DIMMs
Ninth pair of DIMMs
Tenth pair of DIMMs
Eleventh pair of DIMMs
Twelfth pair of DIMMs

Replacing a memory module

Use this information to replace a memory module.
Step 1. Read the safety information that begins on "Safety" on page v and "Removing and replacing
guidelines" on page 101.
Step 2. Turn off the server and peripheral devices and disconnect the power cords and all external cables,
if necessary.
Step 3. Remove the top cover (see "Removing the top cover" on page 116).
Step 4. Remove the air baffle (see "Removing the air baffle" on page 119).
Step 5. Carefully open the retaining clips on each end of the DIMM connector and remove the DIMM.
Attention: To avoid breaking the retaining clips or damaging the DIMM connectors, open and
close the clips gently.
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HX3510-G, HX5510, HX5510-C, HX7510 Installation and Service Guide
Number of installed
microprocessor
1
1
1
1
1
1
1
1
1
1
1
1
DIMM connector
1, 2
4, 5
8, 9
11, 12
3, 6
7, 10
13, 14
16, 17
20, 21
23, 24
15, 18
19, 22