Chapter 2: Installation
2-33
CMOS Clear (JBT1)
JBT1 is used to clear the saved system setup conguration 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 Denition
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