1040 Keyboard And Keyboard Sub Board - Lenovo ThinkPad P15 Gen 2 Hardware Maintenance Manual

Important notice about memory module installation
Your computer comes with four memory module slots, and supports up to 128 GB memory module in total.
a b
Slot and slot are under the bottom door, and slot
or replacing a memory module, use the following guidelines for better performance:
Important: It is recommended that you follow below installation rules. Otherwise, the computer might either
not start or not perform well.
• To install one or two memory modules in total, install it/them in the slots under the bottom cover. Do not
install it/them in the slots under the keyboard.
• To install three or four memory modules in total, install two memory modules in the slots under the bottom
cover first. Then install the third and fourth memory modules in the slots under the keyboard.
• Your computer supports up to 128 GB memory module in total, and it is recommended that you use
memory modules with the same capacity and speed for best dual-channel memory performance.
• Replace only with a memory module of the type recommended by Lenovo.

1040 Keyboard and keyboard sub board

For access, remove these FRUs:
• "1010 Bottom door" on page 75
Notes:
• You might be instructed to slide the keyboard frame forward or backward in some of the following steps.
In this case, ensure that you do not press or hold the keys while sliding the keyboard frame. Otherwise,
the keyboard frame cannot be moved.
Removal steps of the keyboard
Notes:
• Depending on the model, your computer might look different from the illustrations in this topic.
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P15 Gen 2, T15g Gen 2, and P17 Gen 2 Hardware Maintenance Manual
c d
and slot are under the keyboard. When installing