Beckhoff CB1052 Manuel d'utilisateur télécharger pdf (Page 46)

Chapter: Connectors Jumper Settings

page 46 Beckhoff New Automation Technology CB1052

3.5 Jumper Settings

3.5.1 Clear CMOS

In case the board doesn't start up anymore and BIOS setup is inaccessible there is a "last resort": You

can use the "Clear CMOS" jumpers to reset all CMOS settings to factory defaults. In order to do so you

need to shut down the computer, change the jumper setting from normal (pins 1 & 2 short) to "Clear

CMOS" (pins 2 & 3 short) for both jumpers, wait a few seconds, put the jumpers back into normal position

and reboot.

CAUTION

If you reset the CMOS this does not only bring all settings made in BIOS setup back to default values, it

also clears the date and time information stored in CMOS. So don't forget that, after the Clear CMOS

procedure, you will have to set the clock again.

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Beckhoff CB1052 Manuel d'utilisateur Page 46