Chapter 2: Installation
2-33CMOS Clear (JBT1)
JBT1 is used to clear the saved system setup conguration stored in the CMOS
chip. To clear the contents of the CMOS, completely shut down the system, remove
the AC power cord and then short JBT1 with a jumper. Remove the jumper before
powering on the system again. This will erase all user settings and revert everything
to their factory-set defaults.
A. Clear CMOS
B. JI2C1
C. JI2C2
PCI Slot_SMB Enable
Jumper Settings
Jumper Setting Denition
Short Enabled
Open (Default) Disabled
PCI Slot SMB Enable (I2C1/I2C2)
Use Jumpers I2C1/I2C2 to enable PCI
SMB (System Management Bus) support
to improve system management for the
PCI slots. See the table on the right for
jumper settings.
C
A
B