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Replacing The Coin-cell Battery - Lenovo ThinkServer TD350 70DG User Manual And Hardware Maintenance Manual

Machine types: 70dg, 70dh, 70dj, 70dk, 70dl, 70dm, 70dn, and 70dq user guide.
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9. Install the four screws to secure the new heat sink 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
it. Do not over-tighten the screws.
b. Partially tighten screw
it. Do not over-tighten the screws.
Figure 121. Installing the screws to secure the heat sink
10. If you are instructed to return the old heat sink, 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 164.

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 63.
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 nor 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.
156
ThinkServer TD350 User Guide and Hardware Maintenance Manual
1
, then firmly tighten screw
2
, then firmly tighten screw
3
, and then return to screw
4
, and then return to screw
1
and firmly tighten
2
and firmly tighten

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