JC INFORMATION SYSTEMS CORPORATION
MODEL 2030
Processor | 80486SX/80487SX/80486DX/80486DX2 |
Processor Speed | 20/25/33/40/50(internal)/50/66(internal)MHz |
Chip Set | C & T |
Max. Onboard DRAM | 64MB |
Cache | 64/256KB |
BIOS | C & T |
Dimensions | 330mm x 218mm |
I/O Options | 32-bit VESA card slot Multi-mode type local bus card slot |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J1 | Speaker | J5 |
Turbo LED | J2 | Reset switch | S9 |
Turbo switch | J3 | Multi-mode/local bus card | L1 |
Power LED & keylock | J4 | 32-bit VESA card | V1 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | BIOS type select Flash ROM | W5 | pins 1 & 2 closed |
BIOS type select EPROM | W5 | pins 2 & 3 closed | |
» | Monitor type select monochrome | W9 | open |
Monitor type select color | W9 | closed | |
» | CMOS memory normal operation | W11 | pins 2 & 3 closed |
CMOS memory clear | W11 | pins 1 & 2 closed |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
4MB | (4) 1M x 9 | NONE |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
20MB | (4) 4M x 9 | (4) 1M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
64MB | (4) 16M x 9 | NONE |
CPU TYPE CONFIGURATION | |||
Type | W12 | W13 | W14 |
80486DX2 | pins 2 & 3 closed | closed | pins 1 & 2 closed |
80486DX | pins 2 & 3 closed | closed | pins 1 & 2 closed |
80487SX | pins 1 & 2 closed | closed | pins 1 & 2 closed |
80486SX | N/A | N/A | pins 2 & 3 closed |
CPU CONFIGURATION | ||||||
Speed | OSCI | S0 | S1 | S2 | W7 | W8 |
20MHz | 40MHz | closed | open | closed | pins 1 & 2 | pins 1 & 2 |
25MHz | 50MHz | open | open | closed | pins 1 & 2 | pins 1 & 2 |
33MHz | 66MHz | closed | closed | open | pins 1 & 2 | pins 1 & 2 |
40MHz | 80MHz | open | closed | open | pins 1 & 2 | pins 1 & 2 |
50(internal)MHz | 50MHz | open | open | closed | pins 2 & 3 | pins 2 & 3 |
50MHz | 50MHz | open | open | closed | pins 1 & 2 | pins 1 & 2 |
66(internal)MHz | 66MHz | closed | closed | open | pins 1 & 2 | pins 1 & 2 |
Note:Pins designated should be in the closed position. |
CACHE JUMPER CONFIGURATION | |||
Size | W10 | W15 | W16 |
64KB | pins 2 & 3 closed | pins 2 & 3 closed | pins 2 & 3 closed |
256KB | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed |
Note:The location of Jumper W15 and W16 may vary. |
CACHE CONFIGURATION | |||
Size | Cache CACHE | Location | TAG |
64KB | (8) 8K x 8 | CACHE | (2) 16K x 1 |
256KB | (8) 32K x 8 | CACHE | (2) 16K x 1 |