Lenovo ThinkStation P410 Hardware Maintenance Manual page 117

Install memory modules in the numerical order as shown. The numbers 1, 2, 3, and 4 indicate the installation
sequence.
Figure 31. Memory module installation–order
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 95.
2. Lay the computer on its side for easier access to the system board.
3. Locate the memory slots. See "Parts on the system board" on page 34.
4. Remove any parts that might prevent your access to the memory slots. Depending on your computer
model, you might need to remove the PCI Express x16 graphics card for easier access to the memory
slots. See "PCI card" on page 99.
5. Depending on whether you are installing or replacing a memory module, do one of the following:
.
Chapter 9 Installing or replacing hardware
109