STB SYSTEMS, INC.

POWERGRAPH C33

Card Type

Video card

Video Chip Set

Western Digital

Maximum Video Memory

2MB DRAM

Video Types Supported

XVGA

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

»

Standard fonts

JP1/5

Open

 

TUV fonts

JP1/5

Closed

»

Vesa bus enabled for 80486 systems

W1

Pin 2-3

 

Vesa bus enabled for 80386 systems

W1

Pin 1-2

 

B/C Disconnect

W2

Pin 1-2

 

B/C Connect

W2

Pin 2-3

Note: TUV is the German standard for character spacing. May not be compatible with some DOS applications

DRAM CONFIGURATION

Note: Location of upgradable DRAM ports unavailable.

REFRESH RATE (800X600, 16 COLORS)

Vertical

Horizontal

Setting

JP1/1

JP1/2

56 Hz

35.3 kHz

Interlaced

Open

Open

56 Hz

35.3 kHz

Noninterlaced

Closed

Closed

60 Hz

38.0 kHz

Noninterlaced

Open

Closed

72 Hz

48.2 kHz

Noninterlaced

Closed

Open

REFRESH RATE (1024X768)

Vertical

Horizontal

Setting

JP1/3

JP1/4

60 Hz

48.5 kHz

Noninterlaced

Open

Closed

70 Hz

56.0 kHz

Noninterlaced

Closed

Open

72 Hz

59.7 kHz

Noninterlaced

Closed

Closed

86.7 Hz

35.4 kHz

Interlaced

Open

Open

MISCELLANEOUS TECHNICAL NOTES

The settings for JP2/1-3 are undetermined. Do not alter from factory settings, or refer to documentation.