MB286T 12/16 Motherboard Settings and Configuration
UNIDENTIFIED
MB286T 12/16
Processor | 80286 |
Processor Speed | 12/16MHz |
Chip Set | Goldstar |
Max. Onboard DRAM | 5MB |
SRAM Cache | None |
BIOS | AMI |
Dimensions | 220mm x 230mm |
I/O Options | None |
NPU Options | 80287 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Power LED & keylock | J4 | Turbo LED | J8 |
External battery | JP5 | Reset switch | J11 |
Turbo switch | J7 | Speaker | J13 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Monitor type select color | JP3 | closed |
| Monitor type select monochrome | JP3 | open |
» | CMOS memory normal operation | JP6 | closed |
| CMOS memory clear | JP6 | open |
» | Factory configured - do not alter | JP14 | unknown |
Note: Location of JP3 is unverified. | |||
BASE MEMORY SELECT | |
Banks | JP17,JP18,JP19,JP20,JP21 & JP22 |
Base memory : Banks 2 & 3 | pins 1 & 2 closed |
Base memory : Banks 0 & 1 (Expansion memory : Banks 2 & 3) | pins 2 & 3 closed |
Note: Exact arrangement & size of DIPP sockets unverified. | |
DRAM CONFIGURATION | ||||
Size | DIP Bank 0 | DIP Bank 1 | SIMM Bank 2 | SIMM Bank 3 |
512KB | (4) 44256 & (2) 41256 | NONE | NONE | NONE |
1MB | (4) 44256 & (2) 41256 | (4) 44256 & (2) 41256 | NONE | NONE |
2MB | (4) 44256 & (2) 41256 | (4) 44256 & (2) 41256 | (2) 256K x 9 | (2) 256K x 9 |
3MB | (4) 44256 & (2) 41256 | (4) 44256 & (2) 41256 | (2) 1M x 9 | NONE |
5MB | (4) 44256 & (2) 41256 | (4) 44256 & (2) 41256 | (2) 1M x 9 | (2) 1M x 9 |
Note: This table for use when banks 0 & 1 are used for base memory and banks 2 & 3 are used for expansion memory. | ||||
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
512KB | NONE | NONE | (2) 256K x 9 | NONE |
1MB | NONE | NONE | (2) 256K x 9 | (2) 256K x 9 |
2MB | NONE | NONE | (2) 1M x 9 | NONE |
2.5MB | NONE | NONE | (2) 256K x 9 | (2) 1M x 9 |
4MB | NONE | NONE | (2) 1M x 9 | (2) 1M x 9 |
Note: This table for use when banks 2 & 3 are used for base memory only. | ||||
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