Trinity 100AT  (S1590)  Jumper Settings

CPU Bus Speed Settings

Bus Speed

JP3

JP4

JP5

60MHz

2-3

2-3

2-3

66MHz

1-2

2-3

2-3

75MHz

1-2

1-2

2-3

83MHz

1-2

2-3

1-2

95MHz

2-3

1-2

1-2

100MHz

1-2

1-2

1-2

CPU Clock Multiplier

Multiplier

JP8

JP9

JP10

x1.5

OFF

OFF

OFF

x2.0

OFF

ON

OFF

x2.5

ON

ON

OFF

x3.0

ON

OFF

OFF

x3.5

OFF

OFF

OFF

x4.0

OFF

ON

ON

x4.5

ON

ON

ON

x5.0

ON

OFF

ON

x5.5

OFF

OFF

ON

CPU Core Voltage Settings - For S1590 boards Rev 4.0 and earlier

JPW1

2.0V

2.1V

2.2V

2.3V

2.4V

2.7V

2.8V*

2.9V

3.2V

3.3V

1-2

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

3-4

OFF

OFF

ON

ON

OFF

ON

OFF

OFF

OFF

OFF

5-6

OFF

OFF

OFF

OFF

ON

ON

OFF

OFF

ON

ON

7-8

OFF

OFF

OFF

OFF

OFF

OFF

ON

ON

ON

ON

*Note:  Revision 4.0 or earlier boards have only 8 pins for Jumper JPW1.  Boards that are Revision 5.0 and above have 10 pins for Jumper JPW1.  Go here to see correction.

CPU Core Voltage Settings - For S1590 boards Rev 5.0 and above

JPW1

2.0V

2.1V

2.2V

2.3V

2.4V

2.7V

2.8V

2.9V

3.2V

3.3V

1-2

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

3-4

ON

OFF

ON

ON

OFF

ON

OFF

OFF

OFF

OFF

5-6

ON

OFF

OFF

OFF

ON

ON

OFF

OFF

ON

ON

7-8

ON

OFF

OFF

OFF

OFF

OFF

ON

ON

ON

ON

9-10

ON

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

SIMM Voltage Settings

 SIMM Voltage

JP1, JP12

JP2, JP13

5V

ON

OFF

3V

OFF

ON

Memory (DIMM) Clock Speed

 Same As:

JP6

CPU Clock

1-2

AGP Clock

2-3

Hardware CMOS / Password Reset

 

Default

Reset

JVBAT1

1-2

2-3

Power Supply Type

 

JP7, JP14

AT Power Supply

ON

ATX Power Supply

OFF

Split Voltage Setting (JP11)

 

MMX (Default)

Single Voltage

JP11

OFF

ON

NOTE:  JP11 is a split-voltage setting.  Setting the jumper OFF (open) allows for separate core and I/O voltages.  New P55C type CPUs such as AMD K6/K6-2 require the setting to be OFF.  Setting the jumper ON (closed) gives the CPU only a single voltage control typically for older P54C type CPUs.

© Copyright 2001, Tyan Computer Corporation. All Rights Reserved.