STB SYSTEMS, INC.
POWERGRAPH VGA (VER. 2)
|
Card Type |
Video |
|
Video Chip Set |
Unidentified |
|
Highest Resolution Supported |
1024 x 768 |
|
Maximum Onboard Memory |
1MB DRAM |
|
Data Bus |
16-bit ISA |
|
Video Types Supported |
XVGA |
|
CONNECTIONS |
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|
Function |
Label |
Function |
Label |
|
15-pin analog video port |
J5 |
DAC chip socket |
U2 |
|
DAC chip |
U1 |
|
|
Note: Either U1 or U2 should be installed, but not both. |
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|
USER CONFIGURABLE SETTINGS |
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|
Setting |
Label |
Position |
|
|
» |
Two wait state operation |
J1 |
Pins 2 & 3 closed |
|
|
Zero wait state operation |
J1 |
Pins 1 & 2 closed |
|
» |
Card does not use IRQ2/9 |
J2 |
Pins 2 & 3 closed |
|
|
Card uses IR/FONT |
J2 |
Pins 1 & 2 closed |
|
» |
Factory configured - do not alter |
J3 |
Pins 1 & 2 closed |
|
» |
BIOS uses 8-bit I/O |
J5 |
Pins 1 & 2 closed |
|
|
BIOS uses 16-bit I/O |
J5 |
Pins 2 & 3 closed |
|
DRAM |
Note: This card may take 256KB, 512KB, or 1MB of on-board DRAM. The locations of the banks and the configurations of the chips in these banks is unidentified. |
|
VERTICAL SCAN RATE |
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|
Resolution |
Scan Rate |
J4 |
|
640 x 480 |
60Hz |
Pins 1 & 2 closed |
|
800 x 600 |
56Hz |
Pins 1 & 2 closed |
|
1024 x 768 |
43Hz (interlaced) |
Pins 1 & 2 closed |
|
640 x 480 |
72Hz |
Pins 2 & 3 closed |
|
800 x 600 |
72Hz |
Pins 2 & 3 closed |
|
1024 x 768 |
60Hz |
Pins 2 & 3 closed |