Tomcat III  (S1563S / S1563D)  Jumper Settings

J13,19-20: CPU Speed

J13

J19

J20

CPU Speed

BUS Speed

1-2, 3-4

OFF

OFF

75 MHz

50MHz - PCI=25MHz

3-4

OFF

OFF

90MHz

60MHz - PCI=30MHz

1-2

OFF

OFF

100MHz

66.67MHz - PCI=33MHz

3-4

ON

OFF

120MHz

60MHz - PCI=30MHz

1-2

ON

OFF

133MHz

66.67MHz - PCI=33MHz

3-4

ON

ON

150MHz

60MHz - PCI=30MHz

1-2

ON

ON

166MHz

66.67MHz - PCI=33MHz

1-2

OFF

ON

200MHz

66MHz - PCI=33MHz

1-2, 3-4

ON

OFF

Cyrix P120+

50MHz - PCI=25MHz

3-4

ON

OFF

Cyrix P150+

60MHz - PCI=30MHz

1-2

ON

OFF

Cyrix P166+

66.67MHz - PCI=33MHz

J37-44, 52-54: Voltage Regulator Settings for P54C

BOLD = DEFAULT

3.3V

3.5V

3.6V

J37

ON

OFF

OFF

J38

OFF

OFF

ON

J39

OFF

ON

OFF

J40

ON

ON

ON

J41

ON

ON

ON

J42

OFF

OFF

OFF

J43

OFF

OFF

OFF

J44

OFF

OFF

OFF

J52

ON

ON

ON

J53

OFF

OFF

OFF

J54

OFF

OFF

OFF

Default values are for the Intel Pentium P54C.

J40-44,  J52-54: Voltage Regulator Settings for P55C

Jumper/ Voltage

3.0V

2.85V

2.65V

J42

ON

OFF

OFF

J43

OFF

OFF

ON

J44

OFF

ON

OFF

J40

OFF

OFF

OFF

J41

OFF

OFF

OFF

J52

OFF

OFF

OFF

J53

ON

ON

ON

J54

ON

ON

ON

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

J42: Turbo Switch

Pin 1-2

Assignment

Open

Turbo On

Closed

Turbo Off

J46: Cmos Reset

Pin 1-2

Assignment

Open

Default

Closed

Clear

J14-15:  I/O Port Settings

BOLD = Default

J14

J15

Serial Port Enable

1-2

1-2

LR Port Enable

2-3

2-3

PS2 Connector Pinouts

This illustration corrects two reversed pins in the manual.  The two pins which have changed are 3 and 4 for GND and VCC.

You should purchase this connector from your dealer.  Making your own cable is not advisable and may damage your system and/or peripherals.

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 and 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.

Con 7, 9: Infrared interface

Pin

Assignment

1

Signal In

2

Ground

3

Signal Out

4

VCC

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