Tomcat IV  (S1564S/D)  Jumper Settings

J13,19-20: CPU Speed

J13

J19

J20

J21

VIO

CPU Speed

BUS Speed

1-2, 3-4

OFF

OFF

OFF

OFF

75 MHz

50MHz - PCI=25MHz

3-4

OFF

OFF

OFF

OFF

90MHz

60MHz - PCI=30MHz

1-2

OFF

OFF

OFF

OFF

100MHz

66.67MHz - PCI=33MHz

3-4

ON

OFF

OFF

OFF

120MHz

60MHz - PCI=30MHz

1-2

ON

OFF

OFF

OFF

133MHz

66.67MHz - PCI=33MHz

3-4

ON

ON

OFF

OFF

150MHz

60MHz - PCI=30MHz

1-2

ON

ON

OFF

OFF

166MHz

66.67MHz - PCI=33MHz

1-2

OFF

ON

OFF

OFF

200MHz

66MHz - PCI=33MHz

1-2

ON

ON

OFF

ON

AMD K6 166

~

1-2

OFF

ON

OFF

ON

AMD K6 200

~

1-2

OFF

OFF

OFF

ON

AMD K6 233

66.67MHz - PCI=33MHz

1-2, 3-4

ON

OFF

OFF

ON

Cyrix P120+

50MHz - PCI=25MHz

3-4

ON

OFF

OFF

ON

Cyrix P150+

60MHz - PCI=30MHz

1-2

ON

OFF

OFF

ON

Cyrix P166+

66.67MHz - PCI=33MHz

1-2

ON

ON

OFF

ON

P-MMX 166

~

1-2

OFF

ON

OFF

ON

P-MMX 200

~

1-2

OFF

OFF

OFF

ON

P-MMX 233

66.67MHz - PCI=33MHz

CPU Voltage Select

 

VD0

VD1

VD2

VD3

2.8V

OFF

OFF

OFF

ON

2.9V

ON

OFF

OFF

ON

3.2V

OFF

OFF

ON

ON

3.3V

ON

OFF

ON

ON

3.4V

OFF

ON

ON

ON

3.5V

ON

ON

ON

ON

Pentium P54C & AMD K5 (3.5V)
Pentium MMX P55C (2.8V)
AMD K6-166 & AMD K6-200 (2.9V)
AMD K6-233 (3.2V)
Cyrix 6x86Mx-166 (2.9V)
Cyrix 6x86L-166 (2.8V)

J1-2, 8-9, 10-12: Memory Voltage Settings (Bold=DEFAULT)

VOLTS

J1

J2

J11

J12

J8*

J9

J10

5V

ON

ON

ON

ON

OFF

OFF

OFF

3.3

OFF

OFF

OFF

OFF

ON

ON

ON

Contact your memory vendor for proper voltage selection. Damage to your system and memory will result if voltage is set improperly! *J8 is located just below the secondary IDE controller.  It will be labled as J8 but it will appear like it's J3.  If you refer to your manul, it will be just above and to the right of  J9.

J27: Reset Connector

Pin

Assignment

1

Power Good

2

Ground

J23: Speaker Connector

Pin

Assignment

1

Speaker Out

2

Ground

3

Ground

4

+5 Volts

J46: Cmos Reset

Pin 1-2

Assignment

Open

Default

Closed

Clear

Con 7, 9: Infrared interface

Pin

Assignment

1

Signal In

2

Ground

3

Signal Out

4

VCC

J25: Turbo LED Connector

Pin

Assignment

1

Cathode -

2

Anode +

J24: HDD LED Connector

Pin

Assignment

1

Cathode - IDE1

2

Anode + - IDE1

3

Cathode - IDE1

4

Anode + - IDE2

J50:  APIC for Dual Processing

Pin #

Assignment

2-3

Dual / Single

1-2

Single

J22: Keylock & Power LED connector

Pin

Assignment

1

LED Output

2

No Connection

3

Ground

4

Keylock

5

Ground

Connect your Power LED from your case across pins 1 and 3.  Keylock should be connected across pins 4 and 5.

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