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# JC INFORMATION SYSTEMS CORPORATION
HIGH PERFORMANCE 386 CACHE
Processor 80386DX
Processor Speed 20/25MHz
Chip Set OPTI
Max. Onboard DRAM None (Up to 32MB on 32-bit external memory
card)
Cache 16/32KB
BIOS Phoenix
Dimensions 330mm x 218mm
I/O Options 32-bit external memory card slot (2)
NPU Options 80387/3167
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------+----------+----------------------+----------|
| Speaker | J1 | Turbo LED | J4 |
|---------------+----------+----------------------+----------|
| Reset switch | J2 | External battery | J9 |
|---------------+----------+----------------------+----------|
| Power LED & | J3 | 32-bit external | S1 & S2 |
| keylock | | memory cards | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|-----------------------------------+--------+---------------|
| » | Monitor type select color | JP1 | Closed |
|---+-------------------------------+--------+---------------|
| | Monitor type select | JP1 | Open |
| | monochrome | | |
|---+-------------------------------+--------+---------------|
| » | NPU disabled | JP2 | Open |
|---+-------------------------------+--------+---------------|
| | NPU enabled | JP2 | pins 1 & 2, 3 |
| | | | & 4 closed |
|---+-------------------------------+--------+---------------|
| » | Factory configured - do not | JP4 | Open |
| | alter (pipeline mode) | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG (U1) | TAG (U2) |
|--------+------------+------------+------------+------------|
| 16KB | (8) 4K x 4 | NONE | (1) 4K x 4 | NONE |
|--------+------------+------------+------------+------------|
| 32KB | (8) 4K x 4 | (8) 4K x 4 | (1) 4K x 4 | (1) 4K x 4 |
+------------------------------------------------------------+