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# JC INFORMATION SYSTEMS CORPORATION
MODEL 2060
Processor 80386DX/80486SX/80487SX/80486DX/80486DX2
Processor 20/25/33/40(internal)/50/50(internal)/66(internal)
Speed
Chip Set OPTI
Max. 64MB
Onboard
DRAM
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
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Diagnostic port | DIAG | IDE interface | J13 |
|-------------------+----------+------------------+----------|
| VGA port | J1 | Power LED & | J15 |
| | | keylock | |
|-------------------+----------+------------------+----------|
| Parallel port | J2 | Turbo LED | J16 |
|-------------------+----------+------------------+----------|
| Serial port | J3 | Turbo switch | J17 |
| (COM2) | | | |
|-------------------+----------+------------------+----------|
| Serial port | J4 | Reset switch | J18 |
| (COM1) | | | |
|-------------------+----------+------------------+----------|
| Bus mouse port | J5 | Speaker | J19 |
|-------------------+----------+------------------+----------|
| PS/2 style | J6 | External battery | P1 |
| keyboard | | | |
| connector | | | |
|-------------------+----------+------------------+----------|
| VGA feature | J7 | 16-bit riser | S1 |
| connector | | card | |
|-------------------+----------+------------------+----------|
| Floppy drive | J12 | | |
| interface | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 256K x | (1) 256K x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 3MB | (1) 256K x | (1) 256K x | (1) 256K x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 256K x | (1) 1M x 36 | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 256K x | (1) 256K x | (1) 1M x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 7MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 256K x | (1) 1M x 36 | (1) 1M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 256K x | (1) 256K x | (1) 1M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 13MB | (1) 256K x | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 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 | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP1 | JP2 | JP3 | JP11 | JP13 |
|----------+-----------+--------+----------+--------+--------|
| 80486DX2 | pins 1 & | closed | pins 1 & | closed | pins 2 |
| | 2 | | 2 | | & 3 |
|----------+-----------+--------+----------+--------+--------|
| 80486DX | pins 1 & | closed | pins 1 & | closed | pins 2 |
| | 2 | | 2 | | & 3 |
|----------+-----------+--------+----------+--------+--------|
| 80487SX | pins 1 & | closed | pins 2 & | closed | pins 2 |
| | 2 | | 3 | | & 3 |
|----------+-----------+--------+----------+--------+--------|
| 80486SX | pins 2 & | open | open | closed | pins 2 |
| | 3 | | | | & 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 | closed | open | closed |
| | | 2 & 3 | | | |
|-----------------+-------+-------+--------+--------+--------|
| 25MHz | 50MHz | pins | open | open | closed |
| | | 2 & 3 | | | |
|-----------------+-------+-------+--------+--------+--------|
| 33MHz | 66MHz | pins | closed | closed | open |
| | | 2 & 3 | | | |
|-----------------+-------+-------+--------+--------+--------|
| 40MHz | 80MHz | pins | open | closed | open |
| | | 2 & 3 | | | |
|-----------------+-------+-------+--------+--------+--------|
| 50(internal)MHz | 50MHz | pins | open | open | closed |
| | | 2 & 3 | | | |
|-----------------+-------+-------+--------+--------+--------|
| 50MHz | 50MHz | pins | open | open | closed |
| | | 1 & 2 | | | |
|-----------------+-------+-------+--------+--------+--------|
| 66(internal)MHz | 66MHz | pins | closed | closed | open |
| | | 2 & 3 | | | |
|------------------------------------------------------------|
| 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 | JP14/PP | pins 1 & 2 |
| | IRQ7 | | closed |
|---+---------------------------------+---------+------------|
| | Parallel port interrupt select | JP14/PP | pins 2 & 3 |
| | IRQ5 | | closed |
|---+---------------------------------+---------+------------|
| » | Serial port COM 1 interrupt | JP14/S1 | pins 1 & 2 |
| | select IRQ4 | | closed |
|---+---------------------------------+---------+------------|
| | Serial port COM 1 interrupt | JP14/S1 | pins 2 & 3 |
| | select IRQ3 | | closed |
|---+---------------------------------+---------+------------|
| » | Serial port COM 2 interrupt | JP14/S2 | pins 2 & 3 |
| | select IRQ3 | | closed |
|---+---------------------------------+---------+------------|
| | Serial port COM 2 interrupt | JP14/S2 | pins 1 & 2 |
| | select IRQ4 | | closed |
+------------------------------------------------------------+