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VLB S14 (SIS486)

COMPUTREND SYSTEMS, INC.

VLB S14 (SIS486)

Processor

80486SX/SL80486SX/CX486DX/AM486DX/80486DX/SL80486DX/CX486DX2/ AM486DX2/80486DX2/SL80486DX2

Processor Speed

25/33/40/50(internal)/50/66(internal)MHz

Chip Set

SIS

Max. Onboard DRAM

128MB

Cache

128/256KB

BIOS

AMI/Phoenix

Dimensions

260mm x 221mm

I/O Options

Floppy drive interface, game interface, green PC connector, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Game interface

CN1

Power LED & keylock

JFP pins 1 - 5

PS/2 mouse port

CN2

Speaker

JFP pins 7 - 10

Serial port 1

CN3

Turbo LED

JFP pins 12 & 13

Serial port 2

CN4

Turbo switch

JFP pins 15 - 17

Parallel port

CN5

Reset switch

JFP pins 19 & 20

VGA port

CN6

IDE interface LED

JFPA

Floppy drive interface

CN7

Green PC connector (monitor)

JG1

VGA feature connector

CN8

Green PC LED

JG2

IDE interface

CN9

Green PC connector

JG3

External battery

JB

Riser slot

SL1

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

 

Battery type select internal

JB

Pins 2 & 3 closed

 

Battery type select external

JB

Closed

 

Serial port 1 select COM1

JCOM1

Pins 1 & 2 closed

 

Serial port 1 select COM3

JCOM1

Pins 2 & 3 closed

 

Serial port 2 select COM2

JCOM2

Pins 1 & 2 closed

 

Serial port 2 select COM4

JCOM2

Pins 2 & 3 closed

 

Floppy drive interface enabled

JFDD

Pins 1 & 2 closed

 

Floppy drive interface disabled

JFDD

Pins 2 & 3 closed

 

Game port enabled

JGAME

Pins 1 & 2 closed

 

Game port disabled

JGAME

Pins 2 & 3 closed

 

IDE interface enabled

JHDD

Pins 1 & 2 closed

 

IDE interface disabled

JHDD

Pins 2 & 3 closed

 

Parallel port select LPT1

JPP1

Pins 1 & 2 closed

 

Parallel port select LPT2

JPP1

Pins 2 & 3 closed

 

Parallel port select IRQ7

JPP2

Pins 1 & 2 closed

 

Parallel port select IRQ5

JPP2

Pins 2 & 3 closed

 

On board VGA enabled

JVGA

Pins 1 & 2 closed

 

On board VGA disabled

JVGA

Pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

None

None

None

2MB

(1) 512K x 36

None

None

None

2MB

(1) 256K x 36

(1) 256K x 36

None

None

4MB

(1) 1M x 36

None

None

None

4MB

(1) 512K x 36

(1) 256K x 36

(1) 256K x 36

None

4MB

(1) 512K x 36

(1) 512K x 36

None

None

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

5MB

(1) 1M x 36

(1) 256K x 36

None

None

5MB

(1) 256K x 36

(1) 512K x 36

(1) 512K x 36

None

5MB

(1) 256K x 36

(1) 1M x 36

None

None

DRAM CONFIGURATION (CONíT)

Size

Bank 0

Bank 1

Bank 2

Bank 3

6MB

(1) 1M x 36

(1) 512K x 36

None

None

8MB

(1) 2M x 36

None

None

None

8MB

(1) 1M x 36

(1) 512K x 36

(1) 512K x 36

None

8MB

(1) 1M x 36

(1) 1M x 36

None

None

9MB

(1) 2M x 36

(1) 256K x 36

None

None

9MB

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

None

9MB

(1) 256K x 36

(1) 2M x 36

None

None

10MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

12MB

(1) 2M x 36

(1) 512K x 36

(1) 512K x 36

None

12MB

(1) 2M x 36

(1) 1M x 36

None

None

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

None

12MB

(1) 1M x 36

(1) 2M x 36

None

None

16MB

(1) 4M x 36

None

None

None

16MB

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

None

16MB

(1) 2M x 36

(1) 2M x 36

None

None

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

17MB

(1) 4M x 36

(1) 256K x 36

None

None

18MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

None

20MB

(1) 4M x 36

(1) 512K x 36

(1) 512K x 36

None

20MB

(1) 4M x 36

(1) 1M x 36

None

None

20MB

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

20MB

(1) 1M x 36

(1) 2M x 36

(1) 2M x 36

None

20MB

(1) 1M x 36

(1) 4M x 36

None

None

32MB

(1) 8M x 36

None

None

None

32MB

(1) 4M x 36

(1) 2M x 36

(1) 2M x 36

None

32MB

(1) 4M x 36

(1) 4M x 36

None

None

32MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

35MB

(1) 8M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

36MB

(1) 8M x 36

(1) 512K x 36

(1) 512K x 36

None

36MB

(1) 8M x 36

(1) 1M x 36

None

None

36MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

None

36MB

(1) 1M x 36

(1) 8M x 36

None

None

40MB

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

None

40MB

(1) 8M x 36

(1) 2M x 36

None

None

40MB

(1) 4M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

40MB

(1) 2M x 36

(1) 4M x 36

(1) 4M x 36

None

40MB

(1) 2M x 36

(1) 8M x 36

None

None

44MB

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

48MB

(1) 8M x 36

(1) 2M x 36

(1) 2M x 36

None

48MB

(1) 8M x 36

(1) 4M x 36

None

None

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

None

48MB

(1) 4M x 36

(1) 8M x 36

None

None

49MB

(1) 256K x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

DRAM CONFIGURATION (CONíT)

Size

Bank 0

Bank 1

Bank 2

Bank 3

50MB

(1) 512K x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

52MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

56MB

(1) 8M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

56MB

(1) 2M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 8M x 36

(1) 4M x 36

(1) 4M x 36

None

64MB

(1) 8M x 36

(1) 8M x 36

None

None

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

72MB

(1) 2M x 36

(1) 8M x 36

(1) 8M x 36

None

80MB

(1) 8M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

80MB

(1) 4M x 36

(1) 8M x 36

(1) 8M x 36

None

96MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

None

98MB

(1) 512K x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

128MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

128KB

(4) 32K x 8

None

(1) 8K/16K/32K x 8

256KB (A)

(4) 32K x 8

(4) 32K x 8

(1) 16K/32K x 8

256KB (B)

(4) 64K x 8

None

(1) 16K/32K x 8

CACHE JUMPER CONFIGURATION

Size

JS1

JS2

JS3

128KB

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

256KB (A)

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

256KB (B)

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

CPU TYPE CONFIGURATION

Type

JC2

JC3

JC4

JC5

Cyrix

2 & 3, 5 & 6

2 & 3, 5 & 6

2 & 3, 5 & 6

2 & 3, 5 & 6

AMD

6 & 7

6 & 7

6 & 7

6 & 7

Intel

6 & 7

6 & 7

6 & 7

6 & 7

Intel SL-series

1 & 2, 6 & 7

1 & 2, 6 & 7

1 & 2, 6 & 7

1 & 2, 6 & 7

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

JC6

JC7

Cyrix

Pins 1 & 2 closed

Pins 2 & 3 closed

AMD

Pins 2 & 3 closed

Pins 1 & 2 closed

Intel

Pins 2 & 3 closed

Pins 1 & 2 closed

CPU TYPE CONFIGURATION

Type

JC1

SX

Pins 2 & 3, 5 & 6, 7 & 8 closed

DX

Pins 4 & 7, 2 & 5, 6 & 9 closed

DX2

Pins 1 & 4, 2 & 5, 6 & 9 closed

CPU SPEED CONFIGURATION

Speed

JK1

JK2

JK3

JK4

25MHz

Pins 2 & 3 closed

Closed

Closed

Closed

33MHz

Pins 1 & 2 closed

Closed

Open

Closed

40MHz

Pins 1 & 2 closed

Closed

Closed

Open

50iMHz

Pins 2 & 3 closed

Closed

Closed

Closed

50MHz

Pins 1 & 2 closed

Open

Closed

Closed

66iMHz

Pins 1 & 2 closed

Closed

Open

Closed

CPU VOLTAGE CONFIGURATION

Voltage

JP24

3.3v

Pins 7 & 8, 9 & 10 closed

5v

Pins 1 & 2, 3 & 4 closed

VIDEO MEMORY CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

512KB

(1) 256K x 16

None

None

1MB

(1) 256K x 16

(1) 256K x 16

None

2MB

(1) 256K x 16

(1) 256K x 16

(2) 256K x 16