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# HEWLETT-PACKARD COMPANY
SUPER VGA BOARD
Category Video
Video Types Supported XVGA
Video Processor Unidentified
Highest Resolution Supported 1024 x 768
Data Bus Type 16-bit ISA
Memory Type DRAM
Maximum Onboard Memory 512KB
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------------+----------+-------------+----------|
| 15-pin analog video | CN1 | VGA feature | CN2 |
| port | | connector | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO MEMORY CACHE CONFIGURATION |
|------------------------------------------------------------|
| Setting | SW1/4 |
|-----------------------------------+------------------------|
| » | Enabled | On |
|-------+---------------------------+------------------------|
| | Disabled | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| EMULATION MODE CONFIGURATION |
|------------------------------------------------------------|
| Setting | SW1/5 |
|-----------------------------------+------------------------|
| » | Enabled | On |
|---+-------------------------------+------------------------|
| | Disabled CGA & HGC | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS ROM ACCESS SELECTION |
|------------------------------------------------------------|
| Mode | SW1/6 |
|----------------------------------------+-------------------|
| » | 16-bit | On |
|------------------+---------------------+-------------------|
| | 8-bit | Off |
|------------------------------------------------------------|
| Note: Switch SW1/6 is used in conjunction with jumper E2. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MEMORY ACCESS SELECTION |
|------------------------------------------------------------|
| Mode | SW1/7 |
|----------------------------------+-------------------------|
| » | 16-bit | On |
|-----+----------------------------+-------------------------|
| | 8-bit | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VGA PURE MODE CONFIGURATION |
|------------------------------------------------------------|
| Mode | SW1/8 |
|---------------------------------------+--------------------|
| » | Enable Super VGA Board extensions | On |
|---+-----------------------------------+--------------------|
| | Force pure IBM VGA modes | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VERTICAL INTERRUPT CONFIGURATION |
|------------------------------------------------------------|
| IRQ 2/9 | E1 |
|----------------------------+-------------------------------|
| » | Disabled | Pins 2 & 3 closed |
|---+------------------------+-------------------------------|
| | Enabled | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 16-BIT ROM DECODE CONFIGURATION |
|------------------------------------------------------------|
| Setting | E2 |
|----------------------------------------+-------------------|
| » | C000h - C7FFh memory segment is | Pins 1 & 2 closed |
| | enabled | |
|---+------------------------------------+-------------------|
| | Decodes memory segments C000h - | Pins 2 & 3 closed |
| | DFFFh | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FACTORY CONFIGURED - DO NOT ALTER |
|------------------------------------------------------------|
| Switch | Position |
|-----------------------------+------------------------------|
| SW1/1 | On |
|-----------------------------+------------------------------|
| SW1/2 | On |
|-----------------------------+------------------------------|
| SW1/3 | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Memory | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 256KB | (8) 64K x 4 | NONE |
|------------------+--------------------+--------------------|
| 512KB | (8) 64K x 4 | (8) 64K x 4 |
+------------------------------------------------------------+