Lenovo ThinkCentre M90q, Hardware Maintenance Manual

Page: 57 / 98

Chapter 6. Hardware removal and installation
This chapter provides instructions on how to remove and install hardware for your computer.
Handling static-sensitive devices
Do not open the static-protective package containing the new part until the defective part has been removed
and you are ready to install the new part. Static electricity, although harmless to you, can seriously damage
computer components and options.
When you handle options and other computer components, take these precautions to avoid static-electricity
damage:
• Limit your movement. Movement can cause static electricity to build up around you.
• Always handle options and other computer components carefully. Handle PCI/PCIe cards, memory
modules, system boards, and microprocessors by the edges. Never touch any exposed circuitry.
• Prevent others from touching the options and other computer components.
• Touch the static-protective package containing the part to a metal expansion-slot cover or other
unpainted metal surface on the computer for at least two seconds. This reduces static electricity from the
package and your body before you install or replace a new part.
• When possible, remove the new part from the static-protective package, and install it directly in the
computer without setting the part down. When this is not possible, place the static-protective package on
a smooth, level surface and place the part on the package.
• Do not place the part on the computer cover or other metal surface.
Service tool kit
Ensure that the following common service tool kit is prepared before you service the computer.
No. Tool name Tool type
1 Phillips-head screwdriver Common tool
2
Torx-head screwdriver (for new Intel Xeon CPUs) Common tool
3 Pry tools Common tool
4 Conductive tweezers Common tool
5 Isolated tweezers Common tool
6 Hexagonal socket Common tool
7
Silicone grease Consumable tool
8 Polyamide tape Consumable tool
9 Mylar tape
Consumable tool
10 Eraser Consumable tool
11 Electrical tape Consumable tool
12 Double-sided tape Consumable tool
13 Conductive tape Consumable tool
© Copyright Lenovo 2020
51