Asus A7V133-VM User Manual page 18

2) CPU / FSB Frequency Selection (JF)
The JF jumper is set to a default that operates with AMD 133 FSB
capacity processors. The factory default is set to run the FSB at 133
MHz and the JF jumper is preset to [2-3] and all DSW (SW1) switches
are preset to OFF. If AMD 100 MHz capacity processors are used, then
reset the JF jumper to [1-2] and change the DSW (SW1) switches to the
100 MHz setting shown below. If the JF and switch settings do not
match the capacity of the processor, the motherboard may not boot up.
A7V133-VM
®
A7V133-VM CPU/FSB Setting (JF)
18
ASUS A7V133-VM User's Manual
JF
1
2
2
3
133MHz 100MHz
ON ON
1 2 3 4 1 2 3 4
CPU 133MHz CPU 100MHz
(Default)