Device maintenance and repair
7.3 Removing and installing hardware
SIMATIC IPC647E
Operating Instructions, 11/2018, A5E45589180-AA
135
7.3.8 Replacing the processor
Requirement
● The device is fully disconnected from the line voltage, see "Switching off the device
(Page 58)".
● The device is open, see important information in "Open the device (Page 85)".
● The bus frame has been removed, see "Removing/installing the bus frame (Page 87)".
● An original spare part, i.e. a processor of the same type.
Only an approved processor is permitted to be installed on the motherboard.
If the processor is operated with a higher clock frequency than permitted, it can be
destroyed or cause loss of data.
• Operate the processor only at a clock frequency that is equal to or less than the
permitted clock frequency.
Procedure
1. Remove the heat sink of the processor.
2. Unlock the socket and lift the socket cover.
3. Remove the processor.
Note: The contact springs of the socket are highly sensitive to mechanical damage, e.g.
caused by an incorrectly inserted CPU or foreign objects, and their entire surface may
only touch the contact side of the processor flat.
4. Place the new processor in the socket.
During positioning, make sure to take the highlighted arrow on the processor into
consideration.
5. Lock the processor in place.
6. Install the heat sink of the processor again.
7. Reinstall the bus frame.
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