UNIDENTIFIED
TXM/10-IV
| Processor | 8088 | 
| Processor Speed | 4.77/10MHz | 
| Chip Set | Unidentified | 
| Max. Onboard DRAM | 1MB | 
| Cache | None | 
| BIOS | Unidentified | 
| Dimensions | 330mm x 218mm | 
| I/O Options | None | 
| NPU Options | 8087 | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| Speaker | JP7 | Turbo switch | JP10 | 
| Reset switch | JP8 | Keylock | JP11 | 
| Turbo LED | JP9 | Power LED | JP12 | 
| USER CONFIGURABLE SETTINGS | |||
| Function | Jumper/Switch | Position | |
| » | Parity enabled | JP6 | Open | 
| Parity disabled | JP6 | Closed | |
| » | Factory configured - do not alter | SW1/1 | Off | 
| » | NPU disabled | SW1/2 | On | 
| NPU enabled | SW1/2 | Off | |
| » | Factory configured - do not alter | SW1/3 | Off | 
| » | Factory configured - do not alter | SW1/4 | Off | 
| DRAM CONFIGURATION | ||||||||
| Size | Bank 0 | Bank 1 | Bank 2A | Bank 3A | Bank 2B | Bank 3B | Bank 2C | Bank 3C | 
| 256KB | (2)44256 | NONE | NONE | NONE | NONE | NONE | NONE | NONE | 
| 512KB | (2)44256 | (2)44256 | NONE | NONE | NONE | NONE | NONE | NONE | 
| 640KB | (2)44256 | (2)44256 | NONE | NONE | (2)4464 | (2)4464 | NONE | NONE | 
| 640KB | (2)44256 | (2)44256 | NONE | NONE | (2)4164 | (2)4164 | (6)4164 | (6)4164 | 
| 1MB | (2)44256 | (2)44256 | (2)44256 | (2)44256 | NONE | NONE | NONE | NONE | 
| DRAM PARITY CONFIGURATION | ||||||||
| Size | P 0 | P 1 | P 2A | P 3A | P 2B | P 3B | P 2C | P 3C | 
| 256KB | (1)41256 | NONE | NONE | NONE | NONE | NONE | NONE | NONE | 
| 512KB | (1)41256 | (1)41256 | NONE | NONE | NONE | NONE | NONE | NONE | 
| 640KB | (1)41256 | (1)41256 | NONE | NONE | NONE | NONE | (1)4164 | (1)4164 | 
| 640KB | (1)41256 | (1)41256 | NONE | NONE | NONE | NONE | (2)4164 | (2)4164 | 
| 1MB | (1)41256 | (1)41256 | (1)41256 | (1)41256 | NONE | NONE | NONE | NONE | 
| DRAM SWITCH CONFIGURATION | ||
| Size | SW1/9 | SW1/10 | 
| 256KB | On | On | 
| 512KB | Off | On | 
| 640KB | On | Off | 
| 1MB | Off | Off | 
| VIDEO TYPE CONFIGURATION | ||
| Type | SW1/5 | SW1/6 | 
| CGA (40 x 25) | Off | On | 
| CGA (80 x 25) | On | Off | 
| EGA/VGA | On | On | 
| MGA | Off | Off | 
| FLOPPY DRIVE CONFIGURATION | ||
| Floppy drives installed | SW1/7 | SW1/8 | 
| 1 | On | On | 
| 2 | Off | On | 
| 3 | On | Off | 
| 4 | Off | Off | 
| BIOS CONFIGURATION | |
| Setting | CN3 | 
| 27128 installed in U80 | pins 2 & 17, 3 & 16, 5 & 14, 7 & 12 closed | 
| 27256 installed in U65 & 2764 installed in U80 | pins 1 & 18, 4 & 15, 6 & 13 closed |