Memory module

Attention: Do not open your computer or attempt any repair before reading and understanding the Read this first: Important safety information.

Your computer has eight slots for installing DDR4 RDIMMs that provide up to a maximum of 256 GB system memory. When removing or installing a memory module, use the following guidelines:

Use 8 GB, 16 GB, or 32 GB DDR4 ECC RDIMMs in any combination up to a maximum of 256 GB.
Always install DIMMs in the following order as illustrated:
Figure 1. Memory module installation order

To remove or install a memory module, do the following:

Prepare your computer. See Preparing your computer and removing the computer cover.
Lay the computer on its side for easier access to the system board.
Locate the memory module slot. See Parts on the system board.
To remove the memory module, open the retaining clips and gently pull the memory module out of the memory slot.
Figure 2. Removing a memory module
To install a memory module, do the following:
1. Open the retaining clips of the memory slot into which you want to install the memory module.
  Figure 3. Opening the retaining clips
2. Position the new memory module over the memory slot. Ensure that the notch 1 on the memory module aligns correctly with the slot key 2 on the system board. Push the memory module straight down into the slot until the retaining clips close.
  Figure 4. Installing a memory module

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.