Lenovo ThinkServer TD340 - Manual (Page 208)

10. Install the four screws to secure the new heat sink and fan assembly 1 on the system board. It is
recommended that you carefully install the four screws using the following method to avoid any possible
damage to the system board.
a. Partially tighten screw 1 , then firmly tighten screw 3 , and then return to screw 1 and firmly tighten
it. Do not over-tighten the screws.
b. Partially tighten screw 2 , then firmly tighten screw 4 , and then return to screw 2 and firmly tighten
it. Do not over-tighten the screws.
Figure 136. Installing the screws to secure the heat sink and fan assembly 1
11. Connect the heat sink and fan assembly 1 cable to the microprocessor 1 fan connector on the system
board. See “System board components” on page 48.
Note: If the heat sink and fan assembly 1 cable is long, loosely wrap it.
12. If you are instructed to return the old heat sink and fan assembly 1, 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 205.
Replacing the system board battery
Attention: Do not open your server or attempt any repair before reading and understanding “Safety information”
on page iii and “Guidelines” on page 83.
This topic provides instructions on how to replace the system board battery.
Your server has a special type of memory that maintains the date, time, and configuration information for
built-in features. The system board battery keeps the information active when you turn off the server. The
system board battery normally requires no charging nor maintenance throughout its life; however, no battery
196 ThinkServer TD340 User Guide and Hardware Maintenance Manual