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MS-5145 version 1.0A
1. CPU Voltage Setting: JV1-JV5, J14
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Single Voltage
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Dual Voltage
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V I/O
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3.3V
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3.5V
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3.3V
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3.3V
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3.3V
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Vcore
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3.3V
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3.5V
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3.2V
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2.9V
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2.8V
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JV1
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Short
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Open
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Short
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Open
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Short
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JV2
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Short
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Short
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Short
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Open
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Open
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JV3
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Short (2,3)
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Short (2,3)
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Short (2,3)
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Short (2,3)
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Short (2,3)
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JV4
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Short
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Short
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Open
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Open
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Open
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JV5
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Short
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Short
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Open
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Open
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Open
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J14
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All Short
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All Short
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All Open
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All Open
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All Open
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2. CPU Speed and Voltage Setting: SW1 & JV1-JV5, J14
To adjust the speed and voltage of the CPU, you must know the specification
of your CPU (always ask the vendor for CPU specification) then look
at Table 3 (Intel P54C/P55C-MMX), Table 4 (Cyrix 6x86/6x86L) and
Table 5 (AMD 5k86/k6) for proper setting.
3. Intel P54C (Pentium), P55C (MMX) CPU
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CPU Type
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CPU Voltage
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CPU Speed
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V I/O
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V core
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JV1~JV5, J14
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SW1
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JV1
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JV2
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JV3
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JV4
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JV5
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J14
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1
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2
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3
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4
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5
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6
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P54C-75
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3.3
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Short
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Short
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Short 2,3
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Short
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Short
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Short
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ON
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ON
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OFF
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OFF
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OFF
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OFF
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P54C-90
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3.3
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ON
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OFF
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OFF
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OFF
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OFF
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OFF
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3.5
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Open
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Short
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Short 2,3
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Short
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Short
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Short
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P54C-100
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3.3
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Short
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Short
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Short 2,3
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Short
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Short
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Short
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OFF
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OFF
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OFF
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OFF
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OFF
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OFF
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P54C-120
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3.3
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ON
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OFF
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OFF
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ON
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OFF
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OFF
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P54C-133
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3.5
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Open
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Short
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Short 2,3
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Short
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Short
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Short
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OFF
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OFF
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OFF
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ON
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OFF
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OFF
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P54C-150
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3.5
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ON
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OFF
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OFF
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ON
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ON
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OFF
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P54C-166
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3.5
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OFF
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OFF
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OFF
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ON
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ON
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OFF
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P55C-166
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3.3
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2.8
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Short
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Open
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Short 2,3
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Open
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Open
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Open
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P55C-180
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ON
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OFF
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OFF
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OFF
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ON
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OFF
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P54C-200
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3.5
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Open
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Short
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Short 2,3
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Short
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Short
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Short
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OFF
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OFF
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OFF
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OFF
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ON
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OFF
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P55C-200
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3.3
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2.8
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Short
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Open
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Short 2,3
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Open
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Open
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Open
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| P55C-233 |
OFF |
OFF |
OFF |
OFF |
OFF |
OFF |
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4. Cyrix 6x86 CPU
Cyrix 6x86 CPU uses P to rate the speed of their processor based
on Intel CPU core speed, for example P120+ (100Mhz) has 120 Mhz
core speed of Intel but has 100 Mhz core speed in Cyrix. Cyrix 6x86CPU
should always uses a more powerful fan (ask vendor for proper cooling
fan)
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CPU Type
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CPU Voltage
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CPU Speed
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V I/O
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V core
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JV1~JV5, J14
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SW1
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JV1
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JV2
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JV3
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JV4
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JV5
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J14
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1
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2
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3
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4
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5
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6
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3.5
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Open
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Short
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Short 2,3
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Short
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Short
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Short
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ON
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ON
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OFF
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ON
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OFF
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OFF
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P133+ (110MHz)
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OFF
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ON
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OFF
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ON
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OFF
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OFF
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P150+ (120MHz)
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ON
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OFF
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OFF
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ON
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OFF
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OFF
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P166+ (133MHz)
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3.3
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2.8 |
Short |
Open |
Short 2,3
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Open |
Open |
Open |
OFF
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OFF
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OFF
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ON
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OFF
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OFF
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Cyrix 6x86L CPU
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CPU Type
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CPU Voltage
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CPU Speed
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V I/O
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V core
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JV1~JV5, J14
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SW1
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JV1
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JV2
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JV3
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JV4
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JV5
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J14
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1
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2
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3
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4
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5
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6
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3.3
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2.8 |
Short |
Open |
Short 2,3
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Open |
Open |
Open |
OFF
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OFF
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OFF
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ON
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OFF
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OFF
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Note: If you encounter a CPU with different Voltage, just go to section
1 and look for the proper voltage settings.
5. AMD 5K86 CPU
AMD 5K86CPU uses PR to rate the speed of their processor based on
Intel CPU core speed, for example PR133+ (100MHz) has 133Mhz core
speed of Intel but has 100MHz core speed in AMD 5K86 CPU.
|
CPU Type
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CPU Voltage
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CPU Speed
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V I/O
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V core
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JV1~JV5, J14
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SW1
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JV1
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JV2
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JV3
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JV4
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JV5
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J14
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1
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2
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3
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4
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5
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6
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| PR75 |
3.52
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Open
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Short
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Short 2,3
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Short
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Short
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Short
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ON
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ON
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OFF
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OFF
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OFF
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OFF
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| PR90 |
ON
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OFF
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OFF
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OFF
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OFF
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OFF
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| PR100 |
OFF
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OFF
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OFF
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OFF
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OFF
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OFF
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| PR133 |
OFF
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OFF
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OFF
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ON
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OFF
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OFF
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| PR166 |
OFF |
OFF |
OFF |
ON |
ON |
OFF |
AMD K6(MMX) CPU
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CPU Type
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CPU Voltage
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CPU Speed
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V I/O
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V core
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JV1~JV5, J14
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SW1
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JV1
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JV2
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JV3
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JV4
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JV5
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J14
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1
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2
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3
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4
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5
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6
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| PR166 (166MHz) |
3.3
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2.9 |
Open
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Open
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Short 2,3
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Open |
Open |
Open |
OFF
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OFF
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OFF
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ON
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ON
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OFF
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| PR200 (200MHz) |
OFF
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OFF
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OFF
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OFF
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ON
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OFF
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| PR233 (233MHz) |
3.2 |
Short |
Short |
Short 2,3
|
Open |
Open |
Open |
OFF
|
OFF
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OFF
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OFF
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OFF
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OFF
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Note: If you encounter a CPU with different Voltage, just go to section
1 and look for the proper voltage settings.
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