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# RELIALOGIC CORPORATION PRIVATE, LTD.
SI54A
Processor Pentium
Processor 75/90/100MHz
Speed
Chip Set SIS
Max. Onboard 128MB
DRAM
Cache 256/512/1024KB
BIOS Award
Dimensions 330mm x 218mm
I/O Options 32-bit PCI slots (4), floppy drive interface, IDE
interfaces (2), parallel port, serial ports (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------------+----------+---------------+----------|
| Parallel port | J4 | Reset switch | J11 |
|----------------------+----------+---------------+----------|
| Serial port 1 | J5 | Speaker | J12 |
|----------------------+----------+---------------+----------|
| Serial port 2 | J6 | Power LED & | J13 |
| | | keylock | |
|----------------------+----------+---------------+----------|
| Floppy drive | J7 | Turbo LED | LED1 |
| interface | | | |
|----------------------+----------+---------------+----------|
| IDE interface | J8 | IDE interface | LED2 |
| (secondary) | | LED | |
|----------------------+----------+---------------+----------|
| IDE interface | J9 | 32-bit PCI | PCI - |
| (primary) | | slots | PC4 |
|----------------------+----------+---------------+----------|
| Turbo switch | J10 | | |
|------------------------------------------------------------|
| Note: The location of LED1 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | On board I/O enabled | JP3 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | On board I/O disabled | JP3 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | IDE interface enabled | JP4 | Open |
|---+----------------------------------+--------+------------|
| | IDE interface disabled | JP4 | Closed |
|---+----------------------------------+--------+------------|
| » | Parity check enabled | JP5 | Closed |
|---+----------------------------------+--------+------------|
| | Parity check disabled | JP5 | Open |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP9 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Cache invalidation select always | JP13 | pins 1 & 2 |
| | invalidated | | closed |
|---+----------------------------------+--------+------------|
| | Cache invalidation select writes | JP13 | pins 2 & 3 |
| | to invalidated | | closed |
|---+----------------------------------+--------+------------|
| » | Cache write select write back | JP14 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Cache write select write through | JP14 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP15 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP16 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP17 | N/A |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 2MB | (2) 256K x 36 | NONE |
|------------------+--------------------+--------------------|
| 4MB | (2) 256K x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 4MB | (2) 512K x 36 | NONE |
|------------------+--------------------+--------------------|
| 8MB | (2) 512K x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | NONE |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | NONE |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 36MB | (2) 512K x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 1M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 2M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 8M x 36 | NONE |
|------------------+--------------------+--------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 16M x 36 | NONE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Type | JP7 |
|---------------------------------------+--------------------|
| Single side SIMMs only | pins 2 & 3 closed |
|---------------------------------------+--------------------|
| Bank 0 = single side SIMMs & Bank 1 = | pins 1 & 2, 3 & 4 |
| double side SIMMs | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (2) 32K x 8 |
|------------+---------------+---------------+---------------|
| 512KB | (4) 64K x 8 | (4) 64K x 8 | (2) 32K x 8 |
|------------+---------------+---------------+---------------|
| 1MB | (4) 128K x 8 | (4) 128K x 8 | (2) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP11 | JP12 |
|-------------------+--------------------+-------------------|
| 256KB | Open | Open |
|-------------------+--------------------+-------------------|
| 512KB | Closed | Closed |
|-------------------+--------------------+-------------------|
| 1MB | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP8 |
|--------------------------+---------------------------------|
| 75MHz | pins 2 & 3, 5 & 6, 7 & 8 closed |
|--------------------------+---------------------------------|
| 90MHz | pins 2 & 3, 4 & 5, 8 & 9 closed |
|--------------------------+---------------------------------|
| 100MHz | pins 1 & 2, 5 & 6, 7 & 8 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS CONFIGURATION |
|------------------------------------------------------------|
| Type | JP6 |
|----------------------------+-------------------------------|
| EPROM | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| Flash 5v | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| Flash 12v | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DACK/DRQ CONFIGURATION |
|------------------------------------------------------------|
| DACK/DRQ | JP1 | JP2 |
|------------------+--------------------+--------------------|
| DACK1/DRQ1 | pins 1 & 2 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| DACK3/DRQ3 | pins 2 & 3 closed | pins 1 & 2 closed |
+------------------------------------------------------------+