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Connectors, switches, and LEDs 120
System configuration switch
SW4 is an eight-position switch on the system board used to implement the various protections and
override functions. All eight switches will have the off position as the default setting.
Position Function Default Description
1 BIOS CMOS reset Off Off: Normal
On: Clears the BIOS CMOS data, including the
BIOS admin password.
2 BIOS recovery Off Off: Normal BIOS boot block
On: Recovery BIOS boot block
3 RAID key (reserved) Off Off: Disable RAID key
On: Enable RAID key
4 Reserved Off —
5 Reserved Off —
8 Reserved for chassis ID 0, 1, and 2 Off —