For Service Technician Only: Replacing The System Board - Lenovo ThinkServer RD650 User Manual And Hardware Maintenance Manual

1. Connect one end of the Y cable to the USB 3.0 connector on the rear of the external tape drive. Then,
connect the other end of the Y cable to two available USB connectors on the server.
Figure 186. Connecting the external tape drive
2. Verify if the tape drive works correctly.

For service technician only: replacing the system board

Attention: This procedure must be performed only by trained service personnel of Lenovo. Do not open your server or
attempt any repair before reading and understanding "Safety information" on page iii and "Guidelines" on page 67.
CAUTION:
Hazardous moving parts. Keep fingers and other body parts away.
CAUTION:
The heat sinks and microprocessors might be very hot. Turn off the server and wait several minutes
to let the server cool before removing the server cover.
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 might look slightly different from the illustrations in this topic.
To replace the system board, do the following:
1. Remove all external 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. Prepare your server. See "Removing or extending the server from the rack cabinet" on page 69.
.
Chapter 6 Replacing hardware
185