Removing And Installing Hardware; External Options; Vertical Stand - Lenovo ThinkCentre M90s Gen 2 Hardware Maintenance Manual

27
Serial (COM2) connector
29
PCI Express card slot (physical link width x16;
negotiable link width x4, x1)
31
PCI Express x16 Gen 4 graphics card slot
33
System fan connector

Removing and installing hardware

This section provides instructions on how to remove and install hardware for your computer. You can expand
the capabilities of your computer and maintain your computer by removing or installing hardware.
Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 "Important safety information" on page 1.

External options

You can connect external options to your computer, such as external speakers, a printer, or a scanner. For
some external options, you must install additional software in addition to making the physical connection.
When installing an external option, see Chapter 3 "Product overview" on page 29 to identify the required
connector. Then, use the instructions that come with the option to help you make the connection and install
any required software or device drivers.

Vertical stand

Prerequisite
Before you start, read Generic Safety and Compliance Notices, and print the following instructions.
For access, do the following:
1. Remove any media from the drives and turn off all connected devices and the computer.
2. Disconnect all power cords from electrical outlets and disconnect all cables from the computer.
60
M70s Gen 2 and M90s Gen 2 Hardware Maintenance Manual
28
M.2 solid-state drive Gen 4 slot
30
PCI Express x1 card slot
32
E-lock connector
34
Cover presence switch connector (intrusion switch
connector)