JOINDATA SYSTEMS, INC.
G386U
Processor | 80386DX |
Processor Speed | 33/40MHz |
Chip Set | UMC |
Max. onboard DRAM | 32MB |
Cache | 32/64/128/256KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | None |
NPU Options | 80387DX |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Reset switch | J9 | Speaker | J12 |
Turbo LED | J10 | Power LED & keylock | J13 |
Turbo switch | J11 | External battery | J14 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper/Switch | Position | |
» | Factory configured - do not alter | J1 | Unknown |
» | Factory configured - do not alter | J2 | Unknown |
» | NPU enabled | W1 & W10 | Closed |
NPU disabled | W1 & W10 | Open | |
» | Monitor type select color | W11 | Closed |
Monitor type select monochrome | W11 | Open | |
» | CMOS memory normal operation (Internal Battery) | W9 | Closed |
CMOS memory normal operation (External Battery) | W9 | Open |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
1MB | (4) 256K x 9 | NONE |
2MB | (4) 256K x 9 | (4) 256K x 9 |
4MB | (4) 1M x 9 | NONE |
5MB | (4) 256K x 9 | (4) 1M x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
20MB | (4) 1M x 9 | (4) 4M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
CACHE CONFIGURATION | |||
Size | U21, U22, U23, & U24 | U15, U16, U17, & U18 | TAG |
32KB | (4) 8K x 8 | NONE | (2) 16K x 4 |
64KB | (4) 8K x 8 | (4) 8K x 8 | (2) 16K x 4 |
128KB | (4) 32K x 8 | NONE | (2) 64K x 4 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (2) 64K x 4 |
Note:U21 - U24 and U15 - U18 may be located on the system board. |
CACHE JUMPER CONFIGURATION | |||||
Size | W3 | W4 | W5 | W6 | W7 |
32KB | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 | Open |
64KB | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | Open |
128KB | pins 2 & 3 | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 | pins 1 & 2 |
256KB | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 |
Note:Pins designated should be in the closed position. |
NPU CLOCK CONFIGURATION | |||
Mode | OSC2 | W8 | W9 |
Synchronous | Not installed | pins 1 & 2 closed | Open |
Asynchronous 25MHz | 50MHz | pins 2 & 3 closed | Closed |
Asynchronous 33HMz | 66MHz | pins 2 & 3 closed | Closed |