STB SYSTEMS, INC.

MVP-4

Card Type

Video card

Video Chip Set

Tseng Labs ET4000

Highest Resolution Supported

1280 x 1024

Maximum Video Memory

4MB DRAM

Data Bus

8/16-bit ISA

Video Types Supported

XVGA

CONNECTIONS

Function

Label

Function

Label

Video port

CN1

Video port

CN3

Video port

CN2

Video port

CN4

Note:Each video port acts as a separate adapter, with separately configurable memory. The exact location of port 1 is unidentified. All indications of "Port 1" are only for the purposes of this document.

USER CONFIGURABLE SETTINGS

Setting

Label

Position

 

Video BIOS uses 16-bit data transfer

J1

Pins 2 & 3 closed

 

Video BIOS uses 8-bit data transfer

J1

Pins 1 & 2 closed

 

Card uses 16-bit data transfer

J2

Pins 1 & 2 closed

 

Card uses 8-bit data transfer

J2

Pins 2 & 3 closed

Factory configured - do not alter

J5

Unidentified

DRAM, PORT 1

Size

Bank 0

Bank 1

512KB

(4) 128KB

NONE

1MB

(4) 128KB

(4) 128KB

DRAM, PORT 2

Size

Bank 2

Bank 3

512KB

(4) 128KB

NONE

1MB

(4) 128KB

(4) 128KB

DRAM, PORT 3

Size

Bank 4

Bank 5

512KB

(4) 128KB

NONE

1MB

(4) 128KB

(4) 128KB

DRAM, PORT 4

Size

Bank 6

Bank 7

512KB

(4) 128KB

NONE

1MB

(4) 128KB

(4) 128KB

BOARD NUMBER

Setting

J3

J4

Board 1

Pins 2 & 3 closed

Pins 2 & 3 closed

Board 2

Pins 2 & 3 closed

Pins 1 & 2 closed

Board 3

Pins 1 & 2 closed

Pins 2 & 3 closed

Board 4

Pins 1 & 2 closed

Pins 1 & 2 closed

VERTICAL REFRESH RATE

Resolution

Refresh Rate

J6

640 x 480

60Hz

Pins 2 & 3 closed

800 x 600

56Hz

Pins 2 & 3 closed

1024 x 768

43Hz (interlaced)

Pins 2 & 3 closed

640 x 480

72Hz

Pins 1 & 2 closed

800 x 600

72Hz

Pins 1 & 2 closed

1024 x 768

60Hz

Pins 1 & 2 closed