Jumper Table Summary of MX58 Plus
Setting the CPU Voltage

Jumper Settings

CPU

Type

Vcore

S4

S5

S6

S7

S8

INTEL P54C

Single Voltage

3.45V

OFF

ON

ON

ON

OFF

INTEL P55C

Dual Voltage

2.8V

OFF

OFF

OFF

ON

OFF

AMD K5

Single Voltage

3.52V

ON

ON

ON

ON

OFF

AMD K6-166/200

Dual Voltage

2.9V

ON

OFF

OFF

ON

OFF

AMD K6-233

Dual Voltage

3.2V

OFF

OFF

ON

ON

OFF

AMD K6-266/300

Dual Voltage

2.2V

OFF

ON

OFF

OFF

OFF

AMD K6-II

Dual Voltage

2.2V

OFF

ON

OFF

OFF

OFF

Cyrix 6x86

Single Voltage

3.52V

ON

ON

ON

ON

OFF

Cyrix 6x86L

Dual Voltage

2.8V

OFF

OFF

OFF

ON

OFF

Cyrix M2

Dual Voltage

2.9V

ON

OFF

OFF

ON

OFF

IDT C6

Single Voltage

3.52V
3.3V

ON
ON

ON
OFF

ON
ON

ON
ON

OFF
OFF

Warning: Make sure that you have installed CPU fan properly if Intel PP/MT-233 or AMD K6 is being selected to use. It may cause your system unstable if you can not meet the heat dissipation requirement from above CPU. It is recommended to adopt larger fan on these CPU for better air flow in the system.

Tip: Normally, for single voltage CPU, Vcpuio (CPU I/O Voltage) is equal to Vcore, but for CPU that needs dual voltage such as PP/MT (P55C) or Cyrix 6x86L, Vcpuio is different from Vcore and must be set to Vio (PBSRAM and Chipset Voltage). The single or dual voltage CPU is automatically detected by hardware circuit.

 

Selecting the CPU Frequency

S1

S2

S3

CPU FrequencyRatio

OFF

ON

ON

OFF

ON

ON

OFF

OFF

OFF

OFF

ON

ON

OFF

ON

ON

OFF

OFF

OFF

OFF

OFF

ON

ON

ON

ON

1.5x (3.5x)

2x (6x)

2.5x (1.75x)

3x

4x

4.5x

5x

5.5x

JP4

JP5

JP6

CPU External Clock

2-3

2-3

1-2

2-3

1-2

2-3

2-3

2-3

2-3

1-2

2-3

1-2

1-2

2-3

1-2

1-2

2-3

2-3

50MHz

55MHz

60MHz

66MHz

75MHz

83MHz

Warning: SIS 5598 chipset supports maximum 75 MHz external CPU bus clock, the 83MHz settings are for internal test only, set to 83MHz exceeds the specification of the chipset, which may cause serious system damage.

INTEL Pentium

CPU Core Frequency

Ratio

External Bus Clock

S1

S2

S3

JP4 & JP5 & JP6

P54C 75

75MHz =

1.5x

50MHz

OFF

OFF

OFF

2-3 & 2-3 & 1-2

P54C 90

90MHz =

1.5x

60MHz

OFF

OFF

OFF

1-2 & 2-3 & 1-2

P54C 100

100MHz =

1.5x

66MHz

OFF

OFF

OFF

2-3 & 1-2 & 1-2

P54C 120

120MHz =

2x

60MHz

ON

OFF

OFF

1-2 & 2-3 & 1-2

P54C 133

133MHz =

2x

66MHz

ON

OFF

OFF

2-3 & 1-2 & 1-2

P54C 150

150MHz =

2.5x

60MHz

ON

ON

OFF

1-2 & 2-3 & 1-2

P54C 166

166MHz =

2.5x

66MHz

ON

ON

OFF

2-3 & 1-2 & 1-2

P54C 200

200MHz =

3x

66MHz

OFF

ON

OFF

2-3 & 1-2 & 1-2

INTEL Pentium MMX

CPU Core Frequency

Ratio

External Bus Clock

S1

S2

S3

JP4 & JP5 & JP6

PP/MT 150

150MHz =

2.5x

60MHz

ON

ON

OFF

1-2 & 2-3 & 1-2

PP/MT 166

166MHz =

2.5x

66MHz

ON

ON

OFF

2-3 & 1-2 & 1-2

PP/MT 200

200MHz =

3x

66MHz

OFF

ON

OFF

2-3 & 1-2 & 1-2

PP/MT 233

233MHz =

3.5x

66MHz

OFF

OFF

OFF

2-3 & 1-2 & 1-2

Cyrix 6x86 & 6x86L

CPU Core Frequency

Ratio

External Bus Clock

S1

S2

S3

JP4 & JP5 & JP6

P120+

100MHz =

2x

50MHz

ON

OFF

OFF

2-3 & 2-3 & 1-2

P133+

110MHz =

2x

55MHz

ON

OFF

OFF

2-3 & 2-3 & 2-3

P150+

120MHz =

2x

60MHz

ON

OFF

OFF

1-2 & 2-3 & 1-2

P166+

133MHz =

2x

66MHz

ON

OFF

OFF

2-3 & 1-2 & 1-2

P200+

150MHz =

2x

75MHz

ON

OFF

OFF

1-2 & 2-3 & 2-3

Cyrix M2

CPU Core Frequency

Ratio

External Bus Clock

S1

S2

S3

JP4 & JP5 & JP6

MX-PR166

150MHz =

2.5x

60MHz

ON

ON

OFF

1-2 & 2-3 & 1-2

MX-PR200

166MHz =

150MHz=

2.5x

2x

66MHz

75MHz

ON

ON

ON

OFF

OFF

OFF

2-3 & 1-2 & 1-2

1-2 & 2-3 & 2-3

MX-PR233

200MHz =

166MHz=

3x

2x

66MHz

83MHz

OFF

ON

ON

OFF

OFF

OFF

2-3 & 1-2 & 1-2

2-3 & 1-2 & 2-3

MX-PR266

233MHz =

3.5x

66MHz

OFF

OFF

OFF

2-3 & 1-2 & 1-2

MX-PR300

225MHz=

233MHz=

240MHz

3x

3.5x

4x

75MHz

66MHz

60MHz

OFF

OFF

ON

ON

OFF

OFF

OFF

OFF

ON

1-2 & 2-3 & 2-3

2-3 & 1-2 & 1-2

1-2 & 2-3 & 1-2

AMD K5

CPU Core Frequency

Ratio

External Bus Clock

S1

S2

S3

JP4 & JP5 & JP6

PR75

75MHz=

1.5x

50MHz

OFF

OFF

OFF

2-3 & 2-3 & 1-2

PR90

90MHz =

1.5x

60MHz

OFF

OFF

OFF

1-2 & 2-3 & 1-2

PR100

100MHz =

1.5x

66MHz

OFF

OFF

OFF

2-3 & 1-2 & 1-2

PR120

90MHz =

1.5x

60MHz

OFF

OFF

OFF

1-2 & 2-3 & 1-2

PR133

100MHz =

1.5x

66MHz

OFF

OFF

OFF

2-3 & 1-2 & 1-2

PR166

116MHz =

1.75x

66MHz

ON

ON

OFF

2-3 & 1-2 & 1-2

AMD K6

CPU Core Frequency

Ratio

External Bus Clock

S1

S2

S3

JP4 & JP5 & JP6

K6-166

166MHz =

2.5x

66MHz

ON

ON

OFF

2-3 & 1-2 & 1-2

K6-200

200MHz =

3x

66MHz

OFF

ON

OFF

2-3 & 1-2 & 1-2

K6-233

233MHz =

3.5x

66MHz

OFF

OFF

OFF

2-3 & 1-2 & 1-2

K6-266

266MHz=

4x

66MHz

ON

OFF

ON

2-3 & 1-2 & 1-2

K6-300

300MHz=

4.5x

66MHz

ON

ON

ON

2-3 & 1-2 & 1-2

K6-2 300

300MHz=

4.5x

66MHz

ON

ON

ON

2-3 & 1-2 & 1-2

K6-2 333

333MHz=

5x

66MHz

OFF

ON

ON

2-3 & 1-2 & 1-2

K6-2 366

366MHz=

5.5x

66MHz

OFF

OFF

ON

2-3 & 1-2 & 1-2

K6-2 400

400MHz=

6x

66MHz

ON

OFF

OFF

2-3 & 1-2 & 1-2

IDT C6

CPU Core Frequency

Ratio

External Bus Clock

S1

S2

S3

JP4 & JP5 & JP6

C6-150

150MHz =

2x

75MHz

ON

OFF

OFF

1-2 & 2-3 & 2-3

C6-180

180MHz =

3x

60MHz

OFF

ON

OFF

1-2 & 2-3 & 1-2

C6-200

200MHz =

3x

66MHz

OFF

ON

OFF

2-3 & 1-2 & 1-2

Note: Cyrix 6x86, 6x86MX (M2) and AMD K5 CPU use P-rating for the reference of CPU benchmark compared with INTEL P54C, their internal core frequency is not exactly equal to P-rating marked on the CPU. For example, Cyrix P166+ is 133MHz but performance is almost equal to P54C 166MHz and AMD PR133 is 100MHz but performance is almost equal to INTEL P54C 133MHz.

 

Clear CMOS

JP14

Clear CMOS

1-2
2-3

Normal operation (default)
Clear CMOS

 

Setting PCI Clock

JP8

Setting PCI Clock

1-2
2-3

Sync (default)
Async

 

Disable Onboard VGA

JP11

Disable Onboard VGA

1-2
2-3

Enabled (default)
Disabled

 

Disable Onboard Audio

JS1

Disable Onboard Audio

1-2
2-3

Enabled (default)
Disabled