ZENITH DATA SYSTEMS
Z-3300 SERIES
| Processor | 80386 | 
| Processor Speed | 12/16MHz | 
| Chip Set | Unidentified | 
| Video Chip Set | None | 
| Maximum Onboard Memory | 4MB (on external memory cards) | 
| Maximum Video Memory | None | 
| Cache | None | 
| BIOS | Unidentified | 
| Dimensions | 355mm x 304mm | 
| I/O Options | 386 connectors (6) | 
| NPU Options | 80287/80387 | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| Chassis fan power | P127 | Power supply connector | P128 | 
 
| USER CONFIGURABLE SETTINGS | |||
| Function | Label | Position | |
| EMS enabled | SW401/3 | On | |
| EMS disabled | SW401/3 | Off | |
| Base memory size select 512KB | SW401/4 | Off | |
| Base memory size select 640KB | SW401/4 | On | |
| DRAM CONFIGURATION | |
| Size | Bank 0 | 
| 1MB (Z-505 card) | (36) 41256 | 
| 4MB (Z-515 card) | (36) 41100 | 
| Note: The location of bank 0 is unidentified. | |
| MEMORY CARD SELECTION | ||
| Setting | SW401/1 | SW401/2 | 
| Set switch on base memory card to: | On | On | 
| Set switch on first extra memory card to: | On | Off | 
| Set switch on second extra memory card to: | Off | On | 
| Set switch on third extra memory card to: | Off | Off | 
| MEMORY BOUNDARY SELECTION | ||||
| Boundary | SW401/5 | SW401/6 | SW401/7 | SW401/8 | 
| 0 | On | On | On | On | 
| 1 | Off | On | On | On | 
| 2 | On | Off | On | On | 
| 3 | Off | Off | On | On | 
| 4 | On | On | Off | On | 
| 5 | Off | On | Off | On | 
| 6 | On | Off | Off | On | 
| 7 | Off | Off | Off | On | 
| 8 | On | On | On | Off | 
| 9 | Off | On | On | Off | 
| 10 | On | Off | On | Off | 
| 11 | Off | Off | On | Off | 
| 12 | On | On | Off | Off | 
| 13 | Off | On | Off | Off | 
| 14 | On | Off | Off | Off | 
| 15 | Off | Off | Off | Off | 
 
| USER CONFIGURABLE SETTINGS | |||
| Function | Label | Position | |
| » | NPU asynchronous with CPU | J201 | Pins 2 & 3 closed | 
| NPU synchronous with CPU | J201 | Pins 1 & 2 closed | |
| » | NPU type select 80287 | J202 | Pins 1 & 2 closed | 
| NPU type select 80387 | J202 | Pins 2 & 3 closed | |
| » | NPU not installed | J204 | Pins 1 & 2 closed | 
| NPU installed | J204 | Pins 2 & 3 closed | |
| » | 1MB memory card installed | J207 | Pins 1 & 2 closed | 
| No memory cards installed | J207 | Pins 2 & 3 closed | |
| » | NPU speed select high | J211 | Pins 2 & 3 closed | 
| NPU speed select low | J211 | Pins 1 & 2 closed | |
| MEMORY ADDRESS SELECTION | ||||
| Address | SW201/1 | SW201/2 | SW201/3 | SW201/4 | 
| 000000  0FFFFF | On | Off | Off | Off | 
| 100000  1FFFFF | Off | On | Off | Off | 
| 200000  2FFFFF | Off | Off | On | Off | 
| 300000  3FFFFF | Off | Off | Off | On | 
| 400000  4FFFFF | Off | Off | Off | Off | 
| 500000  5FFFFF | Off | Off | Off | Off | 
| 600000  6FFFFF | Off | Off | Off | Off | 
| 700000  7FFFFF | Off | Off | Off | Off | 
| MEMORY ADDRESS SELECTION (CONT) | ||||
| Address | SW201/5 | SW201/6 | SW201/7 | SW201/8 | 
| 000000  0FFFFF | Off | Off | Off | Off | 
| 100000  1FFFFF | Off | Off | Off | Off | 
| 200000  2FFFFF | Off | Off | Off | Off | 
| 300000  3FFFFF | Off | Off | Off | Off | 
| 400000  4FFFFF | On | Off | Off | Off | 
| 500000  5FFFFF | Off | On | Off | Off | 
| 600000  6FFFFF | Off | Off | On | Off | 
| 700000  7FFFFF | Off | Off | Off | On | 
| MEMORY ADDRESS SELECTION | ||||
| Address | SW202/1 | SW202/2 | SW202/3 | SW202/4 | 
| 800000  8FFFFF | On | Off | Off | Off | 
| 900000  9FFFFF | Off | On | Off | Off | 
| A00000  AFFFFF | Off | Off | On | Off | 
| B00000  BFFFFF | Off | Off | Off | On | 
| C00000  CFFFFF | Off | Off | Off | Off | 
| D00000  DFFFFF | Off | Off | Off | Off | 
| E00000  EFFFFF | Off | Off | Off | Off | 
| F00000  FFFFFF | Off | Off | Off | Off | 
| MEMORY ADDRESS SELECTION (CONT) | ||||
| Address | SW202/5 | SW202/6 | SW202/7 | SW202/8 | 
| 800000  8FFFFF | Off | Off | Off | Off | 
| 900000  9FFFFF | Off | Off | Off | Off | 
| A00000  AFFFFF | Off | Off | Off | Off | 
| B00000  BFFFFF | Off | Off | Off | Off | 
| C00000  CFFFFF | On | Off | Off | Off | 
| D00000  DFFFFF | Off | On | Off | Off | 
| E00000  EFFFFF | Off | Off | On | Off | 
| F00000  FFFFFF | Off | Off | Off | On |