Installing and Configuring Motherboard Options
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CPU / Bus Speed / Clock Ratio Jumpers
These jumpers set the CPU, PCI, and ISA bus frequencies and the clock ratio. The
jumpers should be changed only when you upgrade the CPU.
CPU / BUS Spees / Clock Ratio Jumpers
CPU SPEED
J2
J3
J4
J5
JB1
PENTIUM 75 MHz
1 2 3
ON
ON
OFF
1 2
3 4
5 6
PENTIUM 90 MHz
1 2 3
ON
OFF
ON
1 2
3 4
5 6
PENTIUM 100 MHz
1 2 3
OFF
ON
ON
1 2
3 4
5 6
PENTIUM 120 MHz
1 2 3
ON
OFF
ON
1 2
3 4
5 6
PENTIUM 133 MHz
1 2 3
OFF
ON
ON
1 2
3 4
5 6
PENTIUM 150 MHz
1 2 3
ON
OFF
ON
1 2
3 4
5 6