Lenovo ThinkServer RD440 - Manual (Page 201)

5. Position the new system fan above the place for the removed failing system fan so that the system fan
connector on the bottom of the new system fan is facing the rear of the chassis. Then, press the new
system fan straight down until it is seated into place.
Note: Install a new system fan as soon as you remove the failing one.
ID
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
PSU
Mem CPU
Figure 153. Installing the system fan
6. If you are instructed to return the old system fan, follow all packaging instructions and use any
packaging materials that are supplied to you for shipping.
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 199.
Replacing the coin-cell battery
Attention: Do not open your server or attempt any repair before reading and understanding “Safety information”
on page iii and “Guidelines” on page 85.
This topic provides instructions on how to replace the coin-cell battery.
Your server has a special type of memory that maintains the date, time, and configuration information for
built-in features. The coin-cell battery keeps the information active when you turn off the server. The
coin-cell battery normally requires no charging or maintenance throughout its life; however, no battery lasts
forever. If the coin-cell battery fails, the date, time, and configuration information, including passwords, are
lost and an error message is displayed when you turn on the server.
Chapter 6 . Installing, removing, or replacing hardware 189