SOFTSYS COMPUTER CENTERS, INC.
TURBO - V4
| Processor | 8088 (exact location unknown) | 
| Processor Speed | 8MHz | 
| Chip Set | Unidentified | 
| Max. Onboard DRAM | 640KB | 
| Cache | None | 
| BIOS | Unidentified | 
| Dimensions | 330mm x 218mm | 
| I/O Options | None | 
| NPU Options | 8087 (exact location unknown) | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| Keylock | JP3 | Power LED | JP7 | 
| Turbo switch | JP5 | Speaker | SPK | 
| LED counter | JP6 | ||
| USER CONFIGURABLE SETTINGS | |||
| Function | Jumper/Switch | Position | |
| » | Softswitch enabled | JP4 | Open | 
| Softswitch disabled | JP4 | Closed | |
| » | Factory configured - do not alter | SW1/3 | N/A | 
| » | Factory configured - do not alter | SW1/4 | N/A | 
| » | Self test disabled | SW2/1 | On | 
| Self test enabled | SW2/1 | Off | |
| » | NPU disabled | SW2/2 | On | 
| NPU enabled | SW2/2 | Off | |
| DRAM CONFIGURATION | ||||
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | 
| 64KB | (9) 4164 | NONE | NONE | NONE | 
| 128KB | (9) 4164 | (9) 4164 | NONE | NONE | 
| 192KB | (9) 4164 | (9) 4164 | (9) 4164 | NONE | 
| 256KB | (9) 4164 | (9) 4164 | (9) 4164 | (9) 4164 | 
| 448KB | (9) 41256 | (9) 4164 | (9) 4164 | (9) 4164 | 
| 640KB | (9) 41256 | (9) 41256 | (9) 4164 | (9) 4164 | 
| 640KB | (9) 41256 | (9) 41256 | (9) 41256 | NONE | 
| DRAM SWITCH CONFIGURATION | ||||
| Size | SW1/1 | SW1/2 | SW2/3 | SW2/4 | 
| 64KB | N/A | N/A | On | On | 
| 128KB | N/A | N/A | Off | On | 
| 192KB | N/A | N/A | On | Off | 
| 256KB | On | On | Off | Off | 
| 448KB | On | Off | N/A | N/A | 
| 640KB | Off | On | N/A | N/A | 
| 640KB | Off | Off | N/A | N/A | 
| VIDEO CONFIGURATION | ||
| Type | SW2/5 | SW2/6 | 
| None | On | On | 
| Monochrome | Off | Off | 
| 40 x 25 color | Off | On | 
| 80 x 25 color | On | Off | 
| FLOPPY DRIVE CONFIGURATION | ||
| Drives installed | SW2/7 | SW2/8 | 
| 1 | On | On | 
| 2 | Off | On | 
| 3 | On | Off | 
| 4 | Off | Off |