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# RELIALOGIC CORPORATION PRIVATE, LTD.
R386SX MBC
Processor 80386SX
Processor Speed 16/25MHz
Chip Set C & T
Max. Onboard DRAM 16MB
Cache None
BIOS AMI
Dimensions 220mm x 218mm
I/O Options Floppy drive interface, IDE interface
NPU Options 80387SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | J7 | Turbo LED | J11 |
|------------------+----------+-------------------+----------|
| Power LED & | J8 | Speaker | J12 |
| keylock | | | |
|------------------+----------+-------------------+----------|
| Reset switch | J9 | Floppy drive | P3 |
| | | interface | |
|------------------+----------+-------------------+----------|
| Turbo switch | J10 | IDE interface | P4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Floppy drive interface enabled | J2 | Closed |
|---+----------------------------------+--------+------------|
| | Floppy drive interface disabled | J2 | Open |
|---+----------------------------------+--------+------------|
| » | IDE interface enabled | J3 | Closed |
|---+----------------------------------+--------+------------|
| | IDE interface disabled | J3 | Open |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J4 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Monitor type select CGA/EGA/VGA | J5 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | J5 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Battery type select internal | J6 | Closed |
|---+----------------------------------+--------+------------|
| | Battery type select external | J6 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (DIPP & SIMM RAM) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Parity | Bank 2 | Bank 3 |
| | | | Chip | | |
|--------+----------+----------+---------+---------+---------|
| 512KB | (2) | (2) | (2) | NONE | NONE |
| | 44256 | 44256 | 41256 | | |
|--------+----------+----------+---------+---------+---------|
| 1MB | (4) | (4) | (4) | NONE | NONE |
| | 44256 | 44256 | 41256 | | |
|--------+----------+----------+---------+---------+---------|
| 1.5MB | (4) | (4) | (4) | (2) | NONE |
| | 44256 | 44256 | 41256 | 256K x | |
| | | | | 9 | |
|--------+----------+----------+---------+---------+---------|
| 2MB | (4) | (4) | (4) | (2) | (2) |
| | 44256 | 44256 | 41256 | 256K x | 256K x |
| | | | | 9 | 9 |
|--------+----------+----------+---------+---------+---------|
| 2MB | NONE | NONE | NONE | (2) 1M | NONE |
| | | | | x 9 | |
|--------+----------+----------+---------+---------+---------|
| 3MB | (4) | (4) | (4) | (2) 1M | (2) |
| | 44256 | 44256 | 41256 | x 9 | 256K x |
| | | | | | 9 |
|--------+----------+----------+---------+---------+---------|
| 4MB | NONE | NONE | NONE | (2) 1M | (2) 1M |
| | | | | x 9 | x 9 |
|--------+----------+----------+---------+---------+---------|
| 5MB | (4) | (4) | (4) | (2) 1M | (2) 1M |
| | 44256 | 44256 | 41256 | x 9 | x 9 |
|--------+----------+----------+---------+---------+---------|
| 9MB | (4) | (4) | (4) | (2) 4M | NONE |
| | 44256 | 44256 | 41256 | x 9 | |
|--------+----------+----------+---------+---------+---------|
| 16MB | NONE | NONE | NONE | (2) 4M | (2) 4M |
| | | | | x 9 | x 9 |
|------------------------------------------------------------|
| Note: When installing 512KB, only U32, U33, U37, U38,U41 & |
| U42 are used. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Bank 0 | Bank 1 | Parity | Bank 2 | Bank 3 | J13, J14 & |
| | | Chip | | | J15 |
|--------+--------+--------+---------+---------+-------------|
| (2) | (2) | (2) | NONE | NONE | 1 & 2, 3 & |
| 44256 | 44256 | 41256 | | | 4, 5 & 6, 7 |
| | | | | | & 8 |
|--------+--------+--------+---------+---------+-------------|
| (4) | (4) | (4) | NONE | NONE | 1 & 2, 3 & |
| 44256 | 44256 | 41256 | | | 4, 5 & 6, 7 |
| | | | | | & 8 |
|--------+--------+--------+---------+---------+-------------|
| (4) | (4) | (4) | (2) | NONE | 1 & 2, 3 & |
| 44256 | 44256 | 41256 | 256K x | | 4, 5 & 6, 7 |
| | | | 9 | | & 8 |
|--------+--------+--------+---------+---------+-------------|
| (4) | (4) | (4) | (2) | (2) | 1 & 2, 3 & |
| 44256 | 44256 | 41256 | 256K x | 256K x | 4, 5 & 6, 7 |
| | | | 9 | 9 | & 8 |
|--------+--------+--------+---------+---------+-------------|
| NONE | NONE | NONE | (2) 1M | NONE | 1 & 3, 2 & |
| | | | x 9 | | 4, 5 & 7, 6 |
| | | | | | & 8 |
|--------+--------+--------+---------+---------+-------------|
| (4) | (4) | (4) | (2) 1M | (2) | 1 & 2, 3 & |
| 44256 | 44256 | 41256 | x 9 | 256K x | 4, 5 & 6, 7 |
| | | | | 9 | & 8 |
|--------+--------+--------+---------+---------+-------------|
| NONE | NONE | NONE | (2) 1M | (2) 1M | 1 & 3, 2 & |
| | | | x 9 | x 9 | 4, 5 & 7, 6 |
| | | | | | & 8 |
|--------+--------+--------+---------+---------+-------------|
| (4) | (4) | (4) | (2) 1M | (2) 1M | 1 & 2, 3 & |
| 44256 | 44256 | 41256 | x 9 | x 9 | 4, 5 & 6, 7 |
| | | | | | & 8 |
|--------+--------+--------+---------+---------+-------------|
| (4) | (4) | (4) | (2) 4M | NONE | 1 & 2, 3 & |
| 44256 | 44256 | 41256 | x 9 | | 4, 5 & 6, 7 |
| | | | | | & 8 |
|--------+--------+--------+---------+---------+-------------|
| NONE | NONE | NONE | (2) 4M | (2) 4M | 1 & 3, 2 & |
| | | | x 9 | x 9 | 4, 5 & 7, 6 |
| | | | | | & 8 |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+