WARNING: This information is provided "as is" with no warranty. Use at your own risk!
This site is NOT affiliated with PB.

850 Common Jumpers - Intel CPU

CPU Speed (MHz) Bus Speed (MHz)
& Multiplier
Multiplier I/O Voltage* Core Voltage Bus Speed Linear Mode PCI/ CPU Bus Synchronization
75 50 x 1.5 JP1
JP2
JP3
Off
Off
Off
JP5
JP6
1-2
1-2
JP8
JP9
JP10
JP11
Closed
Closed
Closed
Closed
JP14
JP15
JP16
On
On
On
JP17 Open JP18 2-3
90 60 x 1.5 JP1
JP2
JP3
Off
Off
Off
JP5
JP6
1-2
1-2
JP8
JP9
JP10
JP11
Closed
Closed
Closed
Closed
JP14
JP15
JP16
Off
On
On
JP17 Open JP18 2-3
100 66 x 1.5 JP1
JP2
JP3
Off
Off
Off
JP5
JP6
1-2
1-2
JP8
JP9
JP10
JP11
Closed
Closed
Closed
Closed
JP14
JP15
JP16
On
Off
On
JP17 Open JP18 2-3
120 60 x 2 JP1
JP2
JP3
On
Off
Off
JP5
JP6
1-2
1-2
JP8
JP9
JP10
JP11
Closed
Closed
Closed
Closed
JP14
JP15
JP16
Off
On
On
JP17 Open JP18 2-3
133 66 x 2 JP1
JP2
JP3
On
Off
Off
JP5
JP6
1-2
1-2
JP8
JP9
JP10
JP11
Closed
Closed
Closed
Closed
JP14
JP15
JP16
On
Off
On
JP17 Open JP18 2-3
150 60 x 2.5 JP1
JP2
JP3
On
Off
On
JP5
JP6
1-2
1-2
JP8
JP9
JP10
JP11
Closed
Closed
Closed
Closed
JP14
JP15
JP16
Off
On
On
JP17 Open JP18 2-3
166 66 x 2.5 JP1
JP2
JP3
On
Off
On
JP5
JP6
1-2
1-2
JP8
JP9
JP10
JP11
Closed
Closed
Closed
Closed
JP14
JP15
JP16
On
Off
On
JP17 Open JP18 2-3
166 MMX 66 x 2.5 JP1
JP2
JP3
On
Off
On
JP5
JP6
2-3
2-3
JP8
JP9
JP10
JP11
Open
Open
Open
Closed
JP14
JP15
JP16
On
Off
On
JP17 Open JP18 2-3
200 66 x 3 JP1
JP2
JP3
Off
Off
On
JP5
JP6
1-2
1-2
JP8
JP9
JP10
JP11
Closed
Closed
Closed
Closed
JP14
JP15
JP16
On
Off
On
JP17 Open JP18 2-3
200 MMX 66 x 3 JP1
JP2
JP3
Off
Off
On
JP5
JP6
2-3
2-3
JP8
JP9
JP10
JP11
Open
Open
Open
Closed
JP14
JP15
JP16
On
Off
On
JP17 Open JP18 2-3
233 MMX 66 x 3.5 JP1
JP2
JP3
Off
Off
Off
JP5
JP6
2-3
2-3
JP8
JP9
JP10
JP11
Open
Open
Open
Closed
JP14
JP15
JP16
On
Off
On
JP17 Open JP18 2-3
* The "I/O Voltage" jumpers (JP5 & JP6) are only on revision B motherboard. Not on revision D.