Lenovo Lenovo 3000 J Series, Руководство по техническому обслуживанию аппаратной части

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Replacing a memory module
This procedure describes how to remove and replace a memory module.
Installing memory
This computer either has two or four connectors for installing double data rate 2 dual
inline memory modules (DDR2 DIMMs). System boards with two connectors can
accommodate a maximum of 2.0 GB of system memory. System boards with four
connectors can accommodate a maximum of 4.0 GB of system memory.
When installing memory modules, the following rules apply:
v If you are replacing a memory module on a system board with four memory connectors,
at least one memory module must be installed in the first memory channel (in either
memory connector 1 or memory connector 2). See “Locating parts on the system board”
on page 87for more information.
v
Use 1.8 V, 240-pin, double data rate 2 synchronous dynamic random access memory
(DDR2 SDRAM).
v
Use 256 MB, 512 MB, or 1 GB memory modules in any combination.
Note: Only DDR2 SDRAM DIMMs can be used.
See “Identifying parts on the system board” on page 8 for more information. .
Note: Only DDR2 SDRAM DIMMs can be used.
1. Remove the cover. See “Removing the cover” on page 85.
2.
You might have to remove the drive bay assembly to access the memory
connectors. See “Accessing system board components and drives” on page 90.
3. Remove the memory module being replaced by opening the retaining clips as
shown.
4. Position the replacement memory module over the memory connector. Make
sure that the notch
1
on the memory module aligns correctly with the
connector key
2
on the system board. Push the memory module straight
down into the memory connector until the retaining clips close.
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Hardware Maintenance Manual