SKYWELL TECHNOLOGY CORPORATION, LTD.

VT586TX

Device Type

Mainboard

Processor

CX 6X86/CX 6X86L/AM K5/AM K6/Pentium

Processor Speed

75/90/100/120/133/150/166/200/233MHz

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

256MB (EDO supported)

Maximum Video Memory

None

Cache

256/512KB (located on Pentium II CPU)

BIOS

Award

Dimensions

241mm x 221mm

I/O Options

32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), IR connector, USB connectors (2), ATX power connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

Reset switch

J17

Floppy drive interface

J3

IDE interface LED

J18

IDE interface 2

J4

IR connector

J19

PS/2 mouse interface

J5

Chassis fan power

J20

Serial port 2

J6

Turbo LED

JP11

IDE interface 1

J7

Power LED & keylock

JP12

Serial port 1

J8

Green PC connector

JP13

Parallel port

J9

Turbo switch

JP14

USB connector

J14

Soft off power supply

JP15

USB connector

J15

32-bit PCI slots

PC1 - PC4

Speaker

J16

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

CMOS memory normal operation

JP1

Pins 1 & 2 closed

 

CMOS memory clear

JP1

Pins 2 & 3 closed

 

Flash BIOS voltage select 12v

JP2

Pins 2 & 3 closed

 

Flash BIOS voltage select 5v

JP2

Pins 1 & 2 closed

SIMM 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

Note: Board accepts EDO memory.

DIMM CONFIGURATION

Size

Bank 2

Bank 3

8MB

(1) 1M x 64

None

16MB

(1) 2M x 64

None

16MB

(1) 1M x 64

(1) 1M x 64

24MB

(1) 2M x 64

(1) 1M x 64

32MB

(1) 4M x 64

None

32MB

(1) 2M x 64

(1) 2M x 64

40MB

(1) 4M x 64

(1) 1M x 64

48MB

(1) 4M x 64

(1) 2M x 64

64MB

(1) 8M x 64

None

64MB

(1) 4M x 64

(1) 4M x 64

72MB

(1) 8M x 64

(1) 1M x 64

80MB

(1) 8M x 64

(1) 2M x 64

96MB

(1) 8M x 64

(1) 4M x 64

128MB

(1) 16M x 64

None

128MB

(1) 8M x 64

(1) 8M x 64

136MB

(1) 16M x 64

(1) 1M x 64

144MB

(1) 16M x 64

(1) 2M x 64

160MB

(1) 16M x 64

(1) 4M x 64

192MB

(1) 16M x 64

(1) 8M x 64

256MB

(1) 16M x 64

(1) 16M x 64

CACHE CONFIGURATION

Size

Bank 0

256KB

(2) 32K x 32

512KB

(2) 64K x 32

CPU SPEED SELECTION (CX 6X86)

CPU speed

Clock speed

Multiplier

FS0

FS1

FS2

JP3

JP4

120MHz

50MHz

2x

1 & 2

1 & 2

1 & 2

Open

Closed

133MHz

55MHz

2x

2 & 3

1 & 2

1 & 2

Open

Closed

150MHz

60MHz

2x

1 & 2

1 & 2

2 & 3

Open

Closed

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86L)

CPU speed

Clock speed

Multiplier

FS0

FS1

FS2

JP3

JP4

166MHz

66MHz

2x

1 & 2

2 & 3

1 & 2

Open

Closed

200MHz

75MHz

2x

2 & 3

1 & 2

2 & 3

Open

Closed

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

FS0

FS1

FS2

JP3

JP4

75MHz

50MHz

1.5x

1 & 2

1 & 2

1 & 2

Open

Open

90MHz

60MHz

1.5x

1 & 2

1 & 2

2 & 3

Open

Open

100MHz

66MHz

1.5x

1 & 2

2 & 3

1 & 2

Open

Open

133MHz

66MHz

2x

1 & 2

2 & 3

1 & 2

Open

Closed

166MHz

66MHz

2.5x

1 & 2

2 & 3

1 & 2

Closed

Closed

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)

CPU speed

Clock speed

Multiplier

FS0

FS1

FS2

JP3

JP4

166MHz

66MHz

2.5x

1 & 2

2 & 3

1 & 2

Closed

Closed

200MHz

66MHz

3x

1 & 2

2 & 3

1 & 2

Closed

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

FS0

FS1

FS2

JP3

JP4

75MHz

50MHz

1.5x

1 & 2

1 & 2

1 & 2

Open

Open

90MHz

60MHz

1.5x

1 & 2

1 & 2

2 & 3

Open

Open

100MHz

66MHz

1.5x

1 & 2

2 & 3

1 & 2

Open

Open

120MHz

60MHz

2x

1 & 2

1 & 2

2 & 3

Open

Closed

133MHz

66MHz

2x

1 & 2

2 & 3

1 & 2

Open

Closed

150MHz

60MHz

2.5x

1 & 2

1 & 2

2 & 3

Closed

Closed

166MHz

66MHz

2.5x

1 & 2

2 & 3

1 & 2

Closed

Closed

200MHz

66MHz

3x

1 & 2

2 & 3

1 & 2

Closed

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX)

CPU speed

Clock speed

Multiplier

FS0

FS1

FS2

JP3

JP4

166MHz

66MHz

2.5x

1 & 2

2 & 3

1 & 2

Closed

Closed

200MHz

66MHz

3x

1 & 2

2 & 3

1 & 2

Closed

Open

233MHz

66MHz

3.5x

1 & 2

2 & 3

1 & 2

Open

Open

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION

Voltage

JP5

JP6

JP7

JP8

JP9

JP10

2.8v

Open

Open

Open

Open

Closed

3 & 4

2.9v

Open

Open

Open

Closed

Open

3 & 4

3.2v

Open

Open

Closed

Open

Open

3 & 4

3.4v

Open

Closed

Open

Open

Open

1 & 2

3.5v

Closed

Open

Open

Open

Open

1 & 2

Note: Pins designated should be in the closed position.