Western Digital WD90C33

Jumper Settings

Card Type

Video card

Video Chip Set

Western Digital

Maximum Video Memory

2MB DRAM

Video Types Supported

VGA

Highest Resolution Supported

1280 x 1024

Data Bus

32-bit VESA Local Bus

 

CONNECTIONS

Function

Label

Function

Label

15-pin analog video port

CN1

Feature connector

CN2

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

80486 CPU

JP11

Pins 2&3

 

80386 CPU

JP11

Pins 1&2

»

Date or code status - disconnected from the VL bus

JP12

Pins 1&2

 

Data or code status - connected to the VL bus

JP12

Pins 2&3

»

VESA local bus

JP45

Closed

 

ISA bus

JP45

Open

»

Configuration option

JP46

Closed

»

Local bus timing is 2 clocks

JP47

Closed

 

Local bus timing is 4 clocks

JP47

Open

»

Refresh setting - 60Hz in mode 3, 12, 5E, 5F

JP48

Closed

 

Refresh setting - 72Hz in mode 3, 12, 5E, 5F

JP48

Open

RESOLUTION AND REFRESH SETTINGS - 800 X 600, 16 OR 256 COLOR

Function

JP41

JP42

»

Vert: 56Hz, non-interlaced; Horiz: 35.3-KHz

Open

Open

 

Vert: 72Hz, non-interlaced; Horiz: 48.2+KHz

Closed

Open

 

Vert: 60Hz, non-interlaced; Horiz: 38.0+KHz

Open

Closed

 

Vert: 56Hz, non-interlaced; Horiz: 35.3-KHz

Closed

Closed

RESOLUTION AND REFRESH SETTINGS - 1024 X 768

Function

JP43

JP44

»

Vert: 86.7Hz, interlaced; Horiz: 35.4+KHz

Open

Open

 

Vert: 70Hz, non-interlaced; Horiz: 56.6-KHz

Closed

Open

 

Vert: 60Hz, non-interlaced; Horiz: 48.5-KHz

Open

Closed

 

Vert: 72Hz, non-interlaced; Horiz: 59.7-KHz

Closed

Closed

VIDEO MEMORY CONFIGURATION (DRAM)

Size

Bank 0

Bank 1

1MB

(8) 128KB x 8

None

2MB

(8) 128KB x 8

(8) 128KB x 8

See Also