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# UNIDENTIFIED
SCAT-SX
Processor 80386SX
Processor Speed 20/25MHz
Chip Set Unidentified
Max. Onboard DRAM 16MB
Cache 32KB (located on external cache card)
BIOS Unidentified
Dimensions 220mm x 220mm
I/O Options External cache card slot
NPU Options 80387SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------+----------+-----------------------+----------|
| Reset switch | J1 | Power LED & keylock | J5 |
|--------------+----------+-----------------------+----------|
| Turbo switch | J2 | External battery | J7 |
|--------------+----------+-----------------------+----------|
| Turbo LED | J3 | External cache card | S1 |
| | | slot | |
|--------------+----------+-----------------------+----------|
| Speaker | J4 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Monitor type select color | P03 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | P03 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | P04 | Closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | P04 | Open |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | P05 | Open |
| | (External battery) | | |
|---+----------------------------------+--------+------------|
| | CMOS memory normal operation | P05 | Closed |
| | (Internal battery) | | |
|---+----------------------------------+--------+------------|
| » | Pipeline mode enabled | P18 | Closed |
|---+----------------------------------+--------+------------|
| | Pipeline mode disabled | P18 | Open |
|---+----------------------------------+--------+------------|
| » | NPU RDY signal enabled | P19 | Closed |
|---+----------------------------------+--------+------------|
| | NPU RDY signal disabled or NPU | P19 | Open |
| | not installed | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 512KB | (2) 256K x | NONE | NONE | NONE |
| | 9 | | | |
|-------+-------------+------------+------------+------------|
| 1MB | (2) 256K x | (2) 256K x | NONE | NONE |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 1.5MB | (2) 256K x | (2) 256K x | (2) 256K x | NONE |
| | 9 | 9 | 9 | |
|-------+-------------+------------+------------+------------|
| 2MB | (2) 256K x | (2) 256K x | (2) 256K x | (2) 256K x |
| | 9 | 9 | 9 | 9 |
|-------+-------------+------------+------------+------------|
| 2MB | (2) 1M x 9 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 3MB | (2) 256K x | (2) 256K x | (2) 1M x 9 | NONE |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 4MB | (2) 1M x 9 | (2) 1M x 9 | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 5MB | (2) 256K x | (2) 256K x | (2) 1M x 9 | (2) 1M x 9 |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 6MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | NONE |
|-------+-------------+------------+------------+------------|
| 8MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
|-------+-------------+------------+------------+------------|
| 8MB | (2) 4M x 9 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 12MB | (2) 1M x 9 | (2) 1M x 9 | (2) 4M x 9 | NONE |
|-------+-------------+------------+------------+------------|
| 16MB | (2) 4M x 9 | (2) 4M x 9 | NONE | NONE |
+------------------------------------------------------------+
IMG IMG 2
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | P11 | P12 | P13 | P14 | P15 |
|-----------+------------+--------+--------+--------+--------|
| 16KB/DM | pins 1 & 2 | pins 1 | pins 1 | pins 1 | pins 1 |
| | | & 2 | & 2 | & 2 | & 2 |
|-----------+------------+--------+--------+--------+--------|
| 16KB/TWS | pins 1 & 2 | pins 1 | pins 1 | pins 1 | pins 1 |
| | | & 2 | & 2 | & 2 | & 2 |
|-----------+------------+--------+--------+--------+--------|
| 32KB/DM | pins 2 & 3 | pins 2 | pins 2 | pins 2 | pins 2 |
| | | & 3 | & 3 | & 3 | & 3 |
|-----------+------------+--------+--------+--------+--------|
| 32KB/TWS | pins 1 & 2 | pins 1 | pins 1 | pins 1 | pins 1 |
| | | & 2 | & 2 | & 2 | & 2 |
|------------------------------------------------------------|
| Note:DM = Direct mapped and TWS = Two-wait associative. |
| |
| Pins designated should be in the closed position. |
+------------------------------------------------------------+