Service and maintenance
11.8 Removing and installing hardware components
SIMATIC HMI IPC677C
Operating Instructions, 04/2013, A5E02722710-04
141
Reconfiguring the BIOS setup
If the battery replacement took longer than 30 seconds, the CMOS configuration data of the
device will have been deleted and you will need to reconfigure this in the BIOS Setup. If you
use the BIOS profile "User", you do not need to make any new settings.
11.8.4 Removing/Installing the Power Supply
WARNING
Only authorized trained personnel are allowed to replace the power supply unit.
Preparations
1. Isolate the device from mains and disconnect all connection cables.
2. Open the device (Page 121).
Removing the power supply unit
How to remove the power supply module
1 Remove the drive bay module for the hard disk and DVD burner.
2
Loosen the screws â‘ and remove
the power supply cover.

3
Remove the screws
â‘
(Torx T10).

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