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Mitsubishi Electric apricot MS660 Owner's Handbook Manual Page 80

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Clear BIOS settings, PL8
BIOS re-program, PL10, PL11
Floppy disk control mode, PL22
System Fan
Soundblaster enable, PL100
Moving the link to pins 2-3, from the default position 1-2,
disconnects the battery from the CMOS and will erase all the
system settings. This should only be used as a last resort in the event
of a password being totally lost and the link should be immediately
returned to its original position. All the BIOS settings will need to
be re-entered, see the chapter 'System BIOS and setup'.
Clearing CMOS
CMOS battery connected (default)
CMOS erase, >1 second to discharge
These links are for an official upgrade to the motherboard BIOS.
They must not be moved for any other reason. Special software is
required and the task should be carried out by authorised engineers.
Recovery, PL10
1-2, normal
2-3, recovery
Floppy disk mode, PL22
Full 3-mode operation
3rd mode, 1.2 Mb operation available in Japan only
Pins
CPU Fansink PL37
1
Ground
2
+12 volt supply
3
Fan Fail
Normal link 1-2, remove to disable sound.
S y s t e m m o t h e r b o a r d
Re-program, PL11
1-2, enable
2-3, normal
Pins
1
2
3
MS660 OWNER'S HANDBOOK
PL8
1-2
2-3
Link pins
1-3
Main fan PL36
Ground
Controlled supply
Ground
8/3

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