UNIDENTIFIED
TURBO MAINBOARD
Processor | 8088 |
Processor Speed | 4.77/10MHz |
Chip Set | None |
Max. onboard DRAM | 640KB |
SRAM Cache | None |
BIOS | Unknown |
Dimensions | 330mm x 218mm |
I/O Options | None |
NPU Options | 8087 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | JP1 | Power LED | JP5/1 & 2 |
Keylock | JP3 | Turbo LED | JP5/3 & 4 |
Reset switch | JP4 | Turbo Switch | JP6 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper/Switch | Position | |
» | Factory configured - do not alter | JP7 | N/A |
» | Factory configured - do not alter | JP8 | N/A |
» | Parity enabled | JP9 | Closed |
Parity disabled | JP9 | Open | |
» | Factory configured - do not alter | SW1/switch 1 | Off |
» | NPU enabled | SW1/switch 2 | Off |
NPU disabled | SW1/switch 2 | On | |
» | Factory configured - do not alter | SW1/switch 3 | N/A |
» | Factory configured - do not alter | SW1/switch 4 | N/A |
DRAM CONFIGURATION | ||||||||
Size | Bank 0 | Parity 0 | Bank 1 | Parity 1 | Bank 2 | Parity 2 | Bank 3 | Parity 3 |
256KB | (8)41256 | (1)41256 | NONE | NONE | NONE | NONE | NONE | NONE |
256KB | (2)44256 | (1)41256 | NONE | NONE | NONE | NONE | NONE | NONE |
512KB | (8)41256 | (1)41256 | (8)41256 | (1)41256 | NONE | NONE | NONE | NONE |
512KB | (2)44256 | (1)41256 | (2)44256 | (1)41256 | NONE | NONE | NONE | NONE |
576KB | (8)41256 | (1)41256 | (8)41256 | (1)41256 | (8)41256 | (1)41256 | NONE | NONE |
576KB | (2)44256 | (1)41256 | (2)44256 | (1)41256 | (2)44256 | (1)41256 | NONE | NONE |
640KB | (8)41256 | (1)41256 | (8)41256 | (1)41256 | (8)41256 | (1)41256 | (8)41256 | (1)41256 |
640KB | (2)44256 | (1)41256 | (2)44256 | (1)41256 | (2)44256 | (1)41256 | (2)44256 | (1)41256 |
Note:When using 44256 or 4464 chips, insert the chips into the dual-size sockets. |
DISPLAY CONFIGURATION | ||
Type | SW1/switch 5 | SW1/switch 6 |
Enhanced graphics adapter | On | On |
Color/graphics (40 x 20 mode) | Off | On |
Color/graphics (80 x 25 mode) | On | Off |
Monochrome display adapter or both | Off | Off |
DRIVE CONFIGURATION | ||
Numper of Installed Drives | SW1/switch 7 | SW1/switch 8 |
1 Drive installed | On | On |
2 Drives installed | Off | On |
3 Drives installed | On | Off |
4 Drives installed | Off | Off |