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Recovering System BIOS - switch 2 / pinpair 2 Switch 2 enables recovery of the old system BIOS after an attempt to update has failed. To restore the old system BIOS you need a Flash BIOS Diskette (see "BIOS update" chapter). On The System BIOS executes from floppy drive A: and the inserted "Flash-BIOS- Diskette" restores the System BIOS on the mainboard. Off Normal operation (default setting). Reserved - switch 3 and switch 4 Switch 3 and 4 are reserved. A26361-D1522-Z120-3-6319 English - 15 Add