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F
Jumpers
Clear CMOS Setting (JP1)
JP1 is used to clear CMOS data. Clearing CMOS will result in permanently
erasing previous system configuration settings and the original factory-set
system settings.
Pin 1-2 (Default)
Pin 2-3 (Clear CMOS)
Step 1.
Turn off the system power (PC-->Off).
Step 2.
Remove the ATX power cable from the ATX power connector.
Step 3.
Remove the jumper cap from pins 1-2.
Step 4.
Place the jumper cap on pins 2-3 for a few seconds.
Step 5.
Restore the jumper cap to pins 1-2.
Step 6.
Plug the ATX power cable into the ATX power connector.
Step 7.
Turn on the system power (PC-->On).
FSB Speed Configuration Setting (JP2)
MB48/N or MB50/N provides JP2 to set front side bus at 400/533MHz. Insert
the mini-jumper cap on pins 1-2 to set FSB at 400MHz. Removing the cap
will set FSB at 533MHz.
Open: 533MHz
Pin 1-2: 400MHz
Pin 2-3: Auto
A1
A2
1
1
1
J P1
1
1
1
