Chaintech 5IGM1.1 5IGM1 quick guide

1997.01

J4: PS/2 mouse connector

J5: IDE activity LED header

IR1: IR connector

PANEL1:

JP4: Password bypass control jumper

1~2 short: Normal (default)
2~3 short: Password bypass

JP8: CPU cooling fan header

JP9: CMOS clear data jumper

1~2 short: Normal (default)
2~3 short: Clear CMOS data

Don't mix and match 3.3V DIMM
with 5V SIMM at the same time.

JP5: External cache size jumper setting

Cache

Cache

size

on Board

256KB 32K*32 x 2 --

32K*32 x 2 32K*32 x 2

512KB

64K*32 x 2 -- --

Int. CPU Speed = Freq. ratio x System freq. BF1 BF2

75/90/100 = 1.5 x system clock 1~2 1~2
110/120/133 = 2 x system clock 2~3 1~2

150/166 = 2.5 x system clock 2~3 2~3

180/200 = 3 x system clock 1~2 2~3

Cache

Module

JP5

1

1

Jumper Setting Quick ReferenceJumper Setting Quick Reference

Jumper Setting Quick Reference

Jumper Setting Quick ReferenceJumper Setting Quick Reference

For VRT (Voltage Reduction Technology)
processor (such as Intel P55C), the split
power plan (CPU's core voltage = CPU's
I/O voltage) design is required.

CPU

Core

I/O

Type

Normal
(P54C,

6x86,

K5-ABQ)

VRT
(P55C,
6x86L,

K5-AHQ)

Vcc

2.5

2.7

2.8

2.9

JP6 JP7 JP10

Vcc

3.3

1

3.4

2

3.5

1

1

1

1

3

4

1

3.3

2

1

5

6

CPU-type S-spce

P54C-75 3.3 50 x1.5

QO653
QO655
SZ978
SX957
SX959

P54C-90

QO654
SX958

K5-PR75

K5-PR90

@90MHz

QO708

QO656 3.3

QO657 3.4

+

+

028 3.5

+

+

ABQ 3.5

P54C-120

P54C-150 x2.5

Intel

P54C-100

P54C-133 x2

P54C-166 x2.5

P54C-200 x3

P55C-166

P55C-200 x3

6x86-P120
@100MHz

6x86-P133
@110MHz

Cyrix

6x86-P150

@120MHz

6x86-P166
@133MHz

AMD

K5-PR100

K5-PR120

K5-PR133
@100MHz

CPU Power Voltage System freq. Freq. ratio

I/O

Core

Vcc

JP10 JP6 JP7 MHz CLK1, CLK2, CLK3 Speed rate BF1, BF2

Vcc

JP10

CLK1,CLK2,CLK3

1

1

JP10

3.3

1

JP10

3.4

1

JP10

3.5

1

JP10

3.3

1

JP10

3.5

1

JP10

JP7

JP6

1

1
2

CLK1,CLK2,CLK3

1

60

1

JP10

1

3.5

3.3 2.8

JP10

1

JP10

1

JP10

JP7

1

JP6

1
2

1

JP7

JP6

1

1

2

JP10

1

66

50

55

60

66

50

60

66

60

66

CLK1,CLK2,CLK3

1

CLK1,CLK2,CLK3

1

CLK1,CLK2,CLK3

1

CLK1,CLK2,CLK3

1

CLK1,CLK2,CLK3

1

CLK1,CLK2,CLK3

1

CLK1,CLK2,CLK3

1

CLK1,CLK2,CLK3

1

CLK1,CLK2,CLK3

1

CLK1,CLK2,CLK3

1

x1.5

x2

x1.5

x2.5

x2

x1.5

BF1 BF2

1

BF1 BF2

1

BF1 BF2

1

BF1 BF2

1

BF1 BF2

1

BF1 BF2

1

BF1 BF2

1

BF1 BF2

1

BF1 BF2

1

BF1 BF2

1

BF1 BF2

1

BF1 BF2

1

V.1

30-A

586IGM1.1586IGM1.1

586IGM1.1

586IGM1.1586IGM1.1