TX140 S1 Upgrade and Maintenance Manual 451
System board and components
Ê If BitLocker functionality is used and has been disabled before starting the
maintenance task, re-enable BitLocker as described in section "Enabling
BitLocker functionality" on page 116.
14.4 Replacing the system board
Note on network settings recovery
I The following note is required for TX140 S1p (PYT14Pxxx for Japanese
market).
When replacing network controllers or the system board, network
configuration settings in the operating system will be lost and replaced
by default values. This applies to all static IP address and LAN teaming
configurations.
Ensure to note down your current network settings before replacing a
network controller or the system board.
Note on TPM
I The system board can be equipped with an optional TPM (Trusted
Platform Module). This module enables third party programs to store key
information (e. g. drive encryption using Windows Bitlocker Drive
Encryption).
If the customer is using TPM functionality, the TPM has to be removed
from the defective system board and connected to the new system
board. For a detailed description, please refer to section "Replacing the
TPM board" on page 448. The TPM is activated in the system BIOS.
Field Replaceable Units (FRU)
Average hardware task duration: 50 minutes
Average software task duration: 10 minutes
I Please note that manual save or restore of BIOS settings
might take more time (up to 25 minutes).