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JP11, JP12: CPU Dual/Single Voltage Select
JP11/JP12
3
Single
Votage
1
3
Dual
Votage
1
Note:
Wrong setting of JP11/JP12 will damage the CPU.
Please double check before powering on the
system.
SW1: 4~6: Bus Ratio Select
SW1: 1~3: CPU Clock Setting
Set the SW1 jumper according to your CPU Bus Ratio and
CPU Clock. (SW1 must work with JP6/JP7.)
1.5x or
SW1: 4~6
3.5x
4
Off
5
CPU Bus
Off
Ratio Setting
6
Off
ON
SW1: 4~6
4.0x
4
On
5
CPU Bus
Off
Ratio Setting
6
On
ON
SW1: 1~3
66MHz
1
Off
2
On
3
On
ON
CPU Bus
100MHz
Ratio Setting
1
Off
2
Off
3
Off
ON
14
CPU Type
Pentium P54C, K5,
6x86, IDT
MMX, 6x86L/6x86MX,
K6, K6-2, MII
2.0x
2.5x
3.0x
4
4
4
On
On
Off
5
5
5
Off
On
On
6
6
6
Off
Off
Off
ON
ON
ON
4.5x
5.0x
5.5x
4
4
4
On
Off
Off
5
5
5
On
On
Off
6
6
6
On
On
On
ON
ON
ON
75MHz
83MHz
95MHz
1
1
1
Off
Off
On
2
2
2
Off
On
Off
3
3
3
On
Off
Off
ON
ON
ON
112MHz
124MHz
133MHz
1
1
On
On
On
2
2
On
Off
On
3
3
On
On
Off
ON
ON
ON
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