Siemens Nixdorf D970, Technical Manual

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Extensions on the system board
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Replacing the processor
The system board can be upgraded with a faster standard processor, with a second
processor or with an OverDrive processor.
!
The second processor must have the same clock rate as the first. A
suitable multiprocessor operating system must be used if dual operation is
required. On the processor modules you may use only processors of the
same type.
The second processor is installed in the free socket provided (socket type 8).
The OverDrive processor is installed in the socket for the first processor after
removing the old processor (socket type 8). The old processor must be removed
for this. The OverDrive processor cannot be operated with a second processor
(dual mode). A second processor must therefore be removed before using the
OverDrive processor.
5
5
7
5
1
2
6
4
3
Ê
Push the lever in the direction of the arrow (1) and lift it as far as it will go
(2).
Ê
Pull the connector of the processor's temperature sensor (3) and lift the
processor out of the slot (4).
Ê
Insert the new processor in the slot. Because of the arrangement of the rows of
pins on the bottom of the processor, the processor is inserted correctly when it
clicks into the socket softly (5).