TX100 S1 Service Supplement 41
Replacement routines Replacing the system board
V CAUTION!
Advise the customer that he must provide you with TPM backup copies. 
For security reasons, the TPM must be restored/re-saved by the 
customer. If the customer DOES NOT have a backup copy available, 
inform him that replacing the TPM will cause him to lose all his data.
Ê Open the server and remove the air duct as described in section “Prepa-
ration” on page 17.
Ê Lay the server on its left side (as seen from the front).
Ê Remove all external cables.
Ê Remove the system fan 2 as described in section “Replacing the system 
fan 2” on page 29
Ê Remove all controllers from their slots (for a description see the Operating 
Manual and the Options Guide). Take note of the slots of the controllers and 
the cabling.
Ê Remove the heat sink and the processor as described in “Replacing the 
processor” on page 35.
Ê Remove the memory modules (for a description see the Options Guide).
Ê Remove all cables which may be connected to the system board.