UNIDENTIFIED
S3 LOCAL BUS VGA
| 
 Category  | 
 Video  | 
| 
 Video Types Supported  | 
 XVGA  | 
| 
 Video Processor  | 
 S3  | 
| 
 Highest Resolution Supported  | 
 1024 x 768  | 
| 
 Data Bus Type  | 
 16-bit EISA  | 
| 
 Memory Type  | 
 VRAM  | 
| 
 Maximum Onboard Memory  | 
 1024KB  | 
| 
 CONNECTIONS  | |
| 
 Purpose  | 
 Location  | 
| 
 15-pin analog video port  | 
 CN1  | 
| 
 VIDEO MEMORY SPEED SELECTION  | ||
| 
 Speed  | 
 JP9  | |
| » | 
 100ns  | 
 Pins 2 & 3 closed  | 
| 
 80ns  | 
 Pins 1 & 2 closed  | |
| 
 640 X 480 REFRESH RATE SELECTION  | ||||||
| 
 Rate  | 
 SW1/1  | 
 SW1/2  | 
 SW1/3  | 
 SW1/4  | 
 SW1/5  | 
 SW1/6  | 
| 
 56Hz  | 
 On  | 
 Off  | 
 On  | 
 Off  | 
 Off  | 
 On  | 
| 
 60Hz  | 
 On  | 
 Off  | 
 On  | 
 Off  | 
 On  | 
 Off  | 
| 
 800 X 600 REFRESH RATE CONFIGURATION  | |||||||
| 
 Rate  | 
 Mode  | 
 SW1/1  | 
 SW1/2  | 
 SW1/3  | 
 SW1/4  | 
 SW1/5  | 
 SW1/6  | 
| 
 43Hz  | 
 Interfaced  | 
 Off  | 
 On  | 
 On  | 
 Off  | 
 Off  | 
 On  | 
| 
 60Hz  | 
 Non-Interlaced  | 
 On  | 
 Off  | 
 Off  | 
 On  | 
 Off  | 
 On  | 
| 
 60Hz  | 
 Non-Interlaced  | 
 On  | 
 Off  | 
 Off  | 
 On  | 
 On  | 
 Off  | 
| 
 70Hz  | 
 Non-Interlaced  | 
 Off  | 
 On  | 
 On  | 
 Off  | 
 On  | 
 Off  | 
| 
 1024 X 768 REFRESH RATE CONFIGURATION  | |||||||
| 
 Rate  | 
 Mode  | 
 SW1/1  | 
 SW1/2  | 
 SW1/3  | 
 SW1/4  | 
 SW1/5  | 
 SW1/6  | 
| 
 70Hz  | 
 Non-Interlaced  | 
 Off  | 
 On  | 
 Off  | 
 On  | 
 On  | 
 Off  | 
| 
 70Hz  | 
 Non-Interlaced  | 
 Off  | 
 On  | 
 Off  | 
 On  | 
 Off  | 
 On  | 
| 
 VRAM CONFIGURATION  | |||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 JP10  | 
| 
 256KB  | 
 (2) 256K x 4 VRAM  | 
 None  | 
 Pins 2 & 3 closed  | 
| 
 512KB  | 
 (4) 256K x 4 VRAM  | 
 None  | 
 Pins 2 & 3 closed  | 
| 
 1024KB  | 
 (4) 256K x 4 VRAM  | 
 (4) 256K x 4 VRAM  | 
 Pins 1 & 2 closed  |