GIGA-BYTE TECHNOLOGY CO., LTD.

GA-586MS

Processor

CX M1/AM K5/Pentium

Processor Speed

75/90/100/120/125/133/150/166/180/200MHz

Chip Set

SIS

Video Chip Set

Unidentified

Maximum Onboard Memory

512MB (EDO supported)

Maximum Video Memory

Unidentified

Cache

256/512KB

BIOS

Award

Dimensions

305mm x 244mm

I/O Options

32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA port, IR connector, ATX power connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

Reset switch

J14

VGA port

CN1

Speaker

J17

Parallel port

CN2

Chassis fan power

JP2

PS/2 mouse port

CN3

Turbo switch

J20

Serial port 1

CN4

Turbo LED

J21

Serial port 2

CN5

Keylock

J26

IDE interface 1

CN6

Green PC LED

JP6

IDE interface 2

CN7

Soft off power supply

JP11

Floppy drive interface

CN8

IDE interface LED

JP14

IR connector

J11

Green PC connector

JP37

Power LED

J12

32-bit PCI slots

PC1 – PC3

Note: The location of J26 is unidentified.

USER CONFIGURABLE SETTINGS

Function

Label

Position

?

Factory configured - do not alter

JP19

Unidentified

DRAM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 36

None

16MB

(2) 2M x 36

None

16MB

(2) 1M x 36

(2) 1M x 36

24MB

(2) 2M x 36

(2) 1M x 36

32MB

(2) 4M x 36

None

32MB

(2) 2M x 36

(2) 2M x 36

40MB

(2) 4M x 36

(2) 1M x 36

48MB

(2) 4M x 36

(2) 2M x 36

64MB

(2) 8M x 36

None

64MB

(2) 4M x 36

(2) 4M x 36

72MB

(2) 8M x 36

(2) 1M x 36

80MB

(2) 8M x 36

(2) 2M x 36

96MB

(2) 8M x 36

(2) 4M x 36

128MB

(2) 8M x 36

(2) 8M x 36

128MB

(2) 16M x 36

None

136MB

(2) 16M x 36

(2) 1M x 36

144MB

(2) 16M x 36

(2) 2M x 36

160MB

(2) 16M x 36

(2) 4M x 36

192MB

(2) 16M x 36

(2) 8M x 36

256MB

(2) 16M x 36

(2) 16M x 36

256MB

(2) 32M x 36

None

264MB

(2) 32M x 36

(2) 1M x 36

272MB

(2) 32M x 36

(2) 2M x 36

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

288MB

(2) 32M x 36

(2) 4M x 36

320MB

(2) 32M x 36

(2) 8M x 36

384MB

(2) 32M x 36

(2) 16M x 36

512MB

(2) 32M x 36

(2) 32M x 36

Note: Board accepts EDO memory.

CACHE CONFIGURATION

Size

Bank 0

256KB

(2) 32K x 32

512KB

(2) 64K x 32

Note: The size of the TAG is unidentified.

VIDEO MEMORY CONFIGURATION

Note: The size and location of the video memory is unidentified.

CPU SPEED SELECTION (CYRIX)

CPU speed

Clock speed

Multiplier

JP1

JP5

120MHz

50MHz

2x

4 & 7, 5 & 8, 6 & 9

3 & 4

133MHz

55MHz

2x

4 & 7, 5 & 8, 6 & 9

3 & 4

150MHz

60MHz

2x

4 & 7, 5 & 8, 6 & 9

3 & 4

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CYRIX, CON’T)

CPU speed

Clock speed

Multiplier

JP7

JP8

JP35

120MHz

50MHz

2x

1 & 2

1 & 2

1 & 2

133MHz

55MHz

2x

2 & 3

2 & 3

1 & 2

150MHz

60MHz

2x

2 & 3

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AMD)

CPU speed

Clock speed

Multiplier

JP1

JP5

75MHz

50MHz

1.5x

4 & 7, 5 & 8, 6 & 9

Open

90MHz

60MHz

1.5x

4 & 7, 5 & 8, 6 & 9

Open

100MHz

66MHz

1.5x

4 & 7, 5 & 8, 6 & 9

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AMD, CON’T)

CPU speed

Clock speed

Multiplier

JP7

JP8

JP35

75MHz

50MHz

1.5x

1 & 2

1 & 2

1 & 2

90MHz

60MHz

1.5x

2 & 3

1 & 2

1 & 2

100MHz

66MHz

1.5x

1 & 2

2 & 3

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

JP1

JP5

75MHz

50MHz

1.5x

4 & 7, 5 & 8, 6 & 9

Open

90MHz

60MHz

1.5x

4 & 7, 5 & 8, 6 & 9

Open

100MHz

66MHz

1.5x

4 & 7, 5 & 8, 6 & 9

Open

120MHz

60MHz

2x

4 & 7, 5 & 8, 6 & 9

3 & 4

125MHz

50MHz

2.5x

4 & 7, 5 & 8, 6 & 9

1 & 2, 3 & 4

133MHz

66MHz

2x

4 & 7, 5 & 8, 6 & 9

3 & 4

150MHz

60MHz

2.5x

4 & 7, 5 & 8, 6 & 9

1 & 2, 3 & 4

150MHz (P55C)

60MHz

2.5x

1 & 4, 2 & 5, 3 & 6

1 & 2, 3 & 4

166MHz

66MHz

2.5x

4 & 7, 5 & 8, 6 & 9

1 & 2, 3 & 4

166MHz (P55C)

66MHz

2.5x

1 & 4, 2 & 5, 3 & 6

1 & 2, 3 & 4

180MHz

60MHz

3x

4 & 7, 5 & 8, 6 & 9

1 & 2

200MHz

66MHz

3x

4 & 7, 5 & 8, 6 & 9

1 & 2

200MHz (P55C)

66MHz

3x

1 & 4, 2 & 5, 3 & 6

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL, CON’T)

CPU speed

Clock speed

Multiplier

JP7

JP8

JP35

75MHz

50MHz

1.5x

1 & 2

1 & 2

1 & 2

90MHz

60MHz

1.5x

2 & 3

1 & 2

1 & 2

100MHz

66MHz

1.5x

1 & 2

2 & 3

1 & 2

120MHz

60MHz

2x

2 & 3

1 & 2

1 & 2

125MHz

50MHz

2.5x

1 & 2

1 & 2

1 & 2

133MHz

66MHz

2x

1 & 2

2 & 3

1 & 2

150MHz

60MHz

2.5x

2 & 3

1 & 2

1 & 2

150MHz (P55C)

60MHz

2.5x

2 & 3

1 & 2

1 & 2

166MHz

66MHz

2.5x

1 & 2

2 & 3

1 & 2

166MHz (P55C)

66MHz

2.5x

1 & 2

2 & 3

1 & 2

180MHz

60MHz

3x

2 & 3

1 & 2

1 & 2

200MHz

66MHz

3x

1 & 2

2 & 3

1 & 2

200MHz (P55C)

66MHz

3x

1 & 2

2 & 3

1 & 2

Note: Pins designated should be in the closed position.