OCEAN INFORMATION SYSTEMS, INC.
MVGA-1000
Card Type |
Video card |
Video Chip Set |
Unidentified |
Maximum Video Memory |
1MB DRAM |
Video Types Supported |
Monochrome, CGA, EGA, VGA |
Highest Resolution Supported |
1024 x 768 |
Data Bus |
16-bit ISA |
CONNECTIONS |
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Function |
Label |
Function |
Label |
15-pin analog video port |
CN1 |
Feature connector |
CN3 |
9-pin digital video port |
CN2 |
|
|
USER CONFIGURABLE SETTINGS |
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Function |
Label |
Position |
|
» |
Data bus autodetect enables |
JP2 |
Pins 2 & 3 Closed |
|
Data bus autodetect disables |
JP2 |
Pins 1 & 2 Closed |
» |
IRQ9 disabled |
JP5 |
Pins 2 & 3 Closed |
|
IRQ9 enabled |
JP5 |
Pins 1 & 2 Closed |
» |
NMI enabled |
JP6 |
Pins 1 & 2 Closed |
|
NMI disabled |
JP6 |
Pins 2 & 3 Closed |
» |
Factory configured - do not alter (TTL port settings) |
JP7 |
Pins 1 & 2 Closed |
» |
Factory configured - do not alter |
SW1/1 |
On |
» |
Factory configured - do not alter |
SW1/2 |
On |
» |
Less than 48KHz horizontal scan rate enabled |
SW1/3 |
On |
|
48KHz - 49KHz horizontal scan rate enabled |
SW1/3 |
Off |
» |
Factory configured - do not alter |
SW1/4 |
On |
» |
Fast address decode enabled |
SW1/5 |
Off |
|
Slow address decode enabled |
SW1/5 |
On |
» |
16-Bit data path enabled |
SW1/6 |
Off |
|
8-Bit data path enabled |
SW1/6 |
On |
VIDEO MEMORY CONFIGURATION (DRAM/VRAM) |
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Size |
Bank 0 |
Bank 1 |
Bank 2 |
U1 |
U7 |
256KB |
(2) 128KB |
None |
None |
Installed |
Blank |
512KB |
(2) 128KB |
(2) 128KB |
None |
Installed |
Blank |
1024KB |
(2) 128KB |
(2) 128KB |
(4) 128KB |
Blank |
Installed |
VIDEO MEMORY JUMPER CONFIGURATION |
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Size |
JP1 |
JP3 |
JP4 |
256KB |
2 & 3 |
1 & 3, 2 & 4 |
1 & 2 |
512KB |
2 & 3 |
1 & 2, 3 & 4 |
2 & 3 |
1024KB |
1 & 2 |
3 & 5, 4 & 6 |
2 & 3 |
Note: Pins designated should be in the closed position |
MISCELLANEOUS TECHNICAL NOTES |
SW 1/3 is used for 512KB and 1024KB configurations only |