Replacing The Diagnostic Module - Lenovo ThinkServer RD440 User Manual And Hardware Maintenance Manual

What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the replacement, go to "Completing the parts replacement" on page 206.

Replacing the diagnostic module

This topic provides instructions on how to replace the diagnostic module. For detailed information about the
diagnostic module, see "Diagnostic module" on page 24.
This topic contains the following items:
• "Replacing the diagnostic module for server models with eight 3.5-inch hard-disk-drive bays" on page 191
• "Replacing the diagnostic module for server models with 2.5-inch hard-disk-drive bays" on page 193
Before you begin, print all the related instructions or ensure that you can view the PDF version on another
computer for reference.
Note: Depending on the model, your server and diagnostic module might look different from the illustrations
in this topic.
Replacing the diagnostic module for server models with eight 3.5-inch
hard-disk-drive bays
Attention: Do not open your server or attempt any repair before reading and understanding "Safety information"
on page iii and "Guidelines" on page 87.
To replace the diagnostic module for server models with eight 3.5-inch hard-disk-drive bays, do the following:
1. Remove all media from the drives and turn off all attached devices and the server. Then, disconnect all
power cords from electrical outlets and disconnect all cables that are connected to the server.
2. If the server is installed in a rack cabinet, remove the server from the rack cabinet and place it on a flat,
clean, and static-protective surface. See the Rack Installation Instructions that comes with the server.
3. Remove the server cover. See "Removing the server cover" on page 89.
4. Locate the diagnostic module. See "Components of server models with eight 3.5-inch hard-disk-drive
bays" on page 35.
5. Disconnect the cable from the rear of the diagnostic module.
.
Chapter 6 Installing, removing, or replacing hardware
191