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# SIEMENS NIXDORF INFORMATIONSSYSTEME AG
S26361-D800
Processor 80486SX/80486SX2/80486DX/80486DX2/80486DX4/Pentium Overdrive
Processor 25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set Unidentified
Max. 128MB
Onboard
DRAM
Cache 128/256KB
BIOS Unidentified
Dimensions 330mm x 218mm
I/O 32-bit PCI slots (1), floppy drive interface, IDE interfaces
Options (2), parallel port, PS/2 mouse port, serial ports (2), VGA
feature connector, VGA port
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| VGA port | CN1 | IDE interface 1 | CN8 |
|-------------------+----------+------------------+----------|
| Parallel port | CN2 | IDE interface 2 | CN9 |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN3 | Imageport | CN10 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN4 | VGA feature | CN11 |
| | | connector | |
|-------------------+----------+------------------+----------|
| PS/2 mouse port | CN5 | Speaker | JP1 |
|-------------------+----------+------------------+----------|
| Optional power | CN6 | LED connector | JP2 |
| connector | | | |
|-------------------+----------+------------------+----------|
| Floppy drive | CN7 | 32-bit PCI slot | SL1 |
| interface | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | L2 cache installed | J5D | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | L2 cache not installed | J5D | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Cache type select HIT | J5E | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Cache type select L2WB | J5E | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Cache type select write through | J5F | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Cache type select write back | J5F | pins 2 & 3 |
| | (Pentium Overdrive) | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J6A | Closed |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Flash BIOS mode select normal | J6B | Open |
|---+----------------------------------+--------+------------|
| | Flash BIOS mode select recovery | J6B | Closed |
|---+----------------------------------+--------+------------|
| » | Floppy drive interface enabled | J6C | Closed |
|---+----------------------------------+--------+------------|
| | Floppy drive interface disabled | J6C | Open |
|---+----------------------------------+--------+------------|
| » | Flash BIOS write protect enabled | J6D | Open |
|---+----------------------------------+--------+------------|
| | Flash BIOS write protect | J6D | Closed |
| | disabled | | |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | J6E | Open |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | J6E | Closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J7 | pins 2 & 3 |
| | alter | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 2M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 36 | (1) 8M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG | MD1 |
|-------+-------------+------------+------------+------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 | (1) 8K x 8 |
|-------+-------------+------------+------------+------------|
| 256KB | (4) 32K x 8 | (4) 32K x | (1) 32K x | (1) 32K x |
| | | 8 | 8 | 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J5B | J5C |
|------------------+--------------------+--------------------|
| 128KB | pins 1 & 2 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 256KB | pins 2 & 3 closed | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | J3 |
|------------------------------+-----------------------------|
| 80486SX | pins 1 & 2 closed |
|------------------------------+-----------------------------|
| 80486SX2 | pins 1 & 2 closed |
|------------------------------+-----------------------------|
| 80486DX | pins 2 & 3 closed |
|------------------------------+-----------------------------|
| 80486DX2 | pins 2 & 3 closed |
|------------------------------+-----------------------------|
| 80486DX4 | pins 2 & 3 closed |
|------------------------------+-----------------------------|
| Pentium Overdrive | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | J2 | J5A |
|------------------+---------------------+-------------------|
| Non SL enhanced | pins 2 & 3, 5 & 6 | pins 2 & 3 closed |
| CPU | closed | |
|------------------+---------------------+-------------------|
| SL enhanced CPU | pins 1 & 2, 4 & 5 | pins 1 & 2 closed |
| | closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | J6F |
|-------------------------------+----------------------------|
| 25MHz | Open |
|-------------------------------+----------------------------|
| 33MHz | Closed |
|-------------------------------+----------------------------|
| 50iMHz | Open |
|-------------------------------+----------------------------|
| 66iMHz | Closed |
|-------------------------------+----------------------------|
| 75iMHz | Open |
|-------------------------------+----------------------------|
| 100iMHz | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | J4 |
|----------------------------+-------------------------------|
| 3.3v | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 5v | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL CONFIGURATION |
|------------------------------------------------------------|
| DMA | J1 |
|----------------------------+-------------------------------|
| DMA 1 | pins 1 & 2, 4 & 5 closed |
|----------------------------+-------------------------------|
| DMA 3 | pins 2 & 3, 5 & 6 closed |
+------------------------------------------------------------+