JC INFORMATION SYSTEMS CORPORATION
MODEL 2060
Processor | 80386DX/80486SX/80487SX/80486DX/80486DX2 |
Processor Speed | 20/25/33/40(internal)/50/50(internal)/66(internal) |
Chip Set | OPTI |
Max. Onboard DRAM | 64MB |
SRAM Cache | 64/128/256KB |
BIOS | AMI |
Dimensions | 330mm x 202mm |
I/O Options | 16-bit riser card slot, bus mouse port, diagnostic port floppy drive interface, IDE interface, parallel port, PS/2 style keyboard serial ports (2), VGA feature connector, VGA port |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Diagnostic port | DIAG | IDE interface | J13 |
VGA port | J1 | Power LED & keylock | J15 |
Parallel port | J2 | Turbo LED | J16 |
Serial port (COM2) | J3 | Turbo switch | J17 |
Serial port (COM1) | J4 | Reset switch | J18 |
Bus mouse port | J5 | Speaker | J19 |
PS/2 style keyboard connector | J6 | External battery | P1 |
VGA feature connector | J7 | 16-bit riser card | S1 |
Floppy drive interface | J12 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | CMOS memory normal operation | JP18 | pins 2 & 3 closed |
CMOS memory clear | JP18 | pins 1 & 2 closed | |
» | Monitor type select color | JP19 | closed |
Monitor type select monochrome | JP19 | open | |
» | BIOS type select EPROM | JP20 | pins 2 & 3 closed |
BIOS type select Flash ROM | JP20 | pins 1 & 2 closed | |
» | On-board VGA enabled | JP21 | closed |
On-board VGA disabled | JP21 | open |
VRAM CONFIGURATION | |
Size | VRAM |
512KB | NONE |
1024KB | (4) 44256 |
Note:The base 512KB is soldered on board. |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
1MB | (1) 256K x 36 | NONE | NONE | NONE |
2MB | (1) 256K x 36 | (1) 256K x 36 | NONE | NONE |
3MB | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 | NONE |
4MB | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 |
4MB | (1) 1M x 36 | NONE | NONE | NONE |
5MB | (1) 256K x 36 | (1) 1M x 36 | NONE | NONE |
6MB | (1) 256K x 36 | (1) 256K x 36 | (1) 1M x 36 | NONE |
7MB | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 | (1) 1M x 36 |
8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
9MB | (1) 256K x 36 | (1) 1M x 36 | (1) 1M x 36 | NONE |
10MB | (1) 256K x 36 | (1) 256K x 36 | (1) 1M x 36 | (1) 1M x 36 |
12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | NONE |
13MB | (1) 256K x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
16MB | (1) 4M x 36 | NONE | NONE | NONE |
32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | NONE |
64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 |
CPU TYPE CONFIGURATION | |||||
Type | JP1 | JP2 | JP3 | JP11 | JP13 |
80486DX2 | pins 1 & 2 | closed | pins 1 & 2 | closed | pins 2 & 3 |
80486DX | pins 1 & 2 | closed | pins 1 & 2 | closed | pins 2 & 3 |
80487SX | pins 1 & 2 | closed | pins 2 & 3 | closed | pins 2 & 3 |
80486SX | pins 2 & 3 | open | open | closed | pins 2 & 3 |
80386DX | N/A | N/A | N/A | open | pins 1 & 2 |
Note:Pins designated should be in the closed position. |
CPU SPEED CONFIGURATION | |||||
Speed | OSCI | JP12 | S0 | S1 | S2 |
20MHz | 40MHz | pins 2 & 3 | closed | open | closed |
25MHz | 50MHz | pins 2 & 3 | open | open | closed |
33MHz | 66MHz | pins 2 & 3 | closed | closed | open |
40MHz | 80MHz | pins 2 & 3 | open | closed | open |
50(internal)MHz | 50MHz | pins 2 & 3 | open | open | closed |
50MHz | 50MHz | pins 1 & 2 | open | open | closed |
66(internal)MHz | 66MHz | pins 2 & 3 | closed | closed | open |
Note:Pins designated should be in the closed position. |
SRAM JUMPER CONFIGURATION | ||||
Size | JP4 | JP5 | JP6 | JP7 |
64KB | open | open | open | open |
128KB | closed | open | open | closed |
256KB | closed | closed | closed | closed |
SRAM CONFIGURATION | |||
Size | Cache SRAM | Location | TAG |
64KB | (8) 8K x 8 | Banks 0 & 1 | (1) 16K x 4 |
128KB | (4) 32K x 8 | Bank 0 | (1) 16K x 4 |
256KB | (8) 32K x 8 | Banks 0 & 1 | (1) 16K x 4 |
PARALLEL & SERIAL PORT IRQ CONFIGURATION | |||
Function/IRQ | Jumper | Position | |
» | Parallel port interrupt select IRQ7 | JP14/PP | pins 1 & 2 closed |
Parallel port interrupt select IRQ5 | JP14/PP | pins 2 & 3 closed | |
» | Serial port COM 1 interrupt select IRQ4 | JP14/S1 | pins 1 & 2 closed |
Serial port COM 1 interrupt select IRQ3 | JP14/S1 | pins 2 & 3 closed | |
» | Serial port COM 2 interrupt select IRQ3 | JP14/S2 | pins 2 & 3 closed |
Serial port COM 2 interrupt select IRQ4 | JP14/S2 | pins 1 & 2 closed |