Lenovo ThinkStation P910, Hardware Maintenance Manual

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What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to “Completing the parts replacement” on page 213.
Memory module
Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 “Read this first: Important safety information” on page 1.
Your computer has 16 slots for installing or replacing DDR4 DIMMs that provide up to a maximum of 1024
GB system memory. When installing or replacing a memory module, use the following guidelines:
• Use any of DDR4 ECC RDIMMs or DDR4 ECC LRDIMMs for your computer. Do not install the RDIMMs
and LRDIMMs into the same computer.
• Use 4 GB, 8 GB, 16 GB, or 32 GB RDIMMs in any combination up to a maximum of 512 GB.
• Use 64 GB LRDIMMs up to a maximum of 1024 GB.
To install or replace a memory module, do the following:
1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 101.
2. Remove the direct cooling air baffle. See “Direct cooling air baffle” on page 105.
3. Lay the computer on its side for easier access to the memory slots.
4. Locate the memory slot in which you want to install or replace a memory module.
Note: If your computer is installed with only one microprocessor, refer to the order of installing memory
modules shown on the left figure. If your computer is installed with two microprocessors, refer to the
order of installing memory modules shown on the right figure.
1
5
2
6
8
4
7
3
6
8
4
2
14
16
12
10
1
9
3
7
5
11
15
13
Figure 146. The order of installing memory modules
5. Depending on whether you are installing or replacing a memory module, do one of the following:
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P910 Hardware Maintenance Manual