SIEMENS NIXDORF INFORMATIONSSYSTEME AG
S26361-D824
Processor | 80486SX/80486SX2/80486DX/80486DX2 |
Processor Speed | 25/33/50(internal)/66(internal)MHz |
Chip Set | Unidentified |
Video Chip Set | Unidentified |
Maximum Onboard Memory | 32MB |
Maximum Video Memory | 1MB |
Cache | None |
BIOS | Unidentified |
Dimensions | 254mm x 218mm |
I/O Options | Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), video pass through connector, VGA port, riser slot |
NPU Options | None |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Video pass through connector | CN1 | IDE interface | CN7 |
PS/2 mouse port | CN2 | Floppy drive interface | CN8 |
Serial port 1 | CN3 | Front panel connector | CN9 |
Serial port 2 | CN4 | Speaker | CN10 |
Parallel port | CN5 | Riser slot | SL1 |
VGA port | CN6 | Reset switch | X31 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
On board video enabled | X60 | Pins 1 & 2 closed | |
On board video disabled | X60 | Pins 2 & 3 closed | |
» | VGA IRQ9 disabled | X161 | Pins 1 & 2 closed |
VGA IRQ9 enabled | X161 | Pins 2 & 3 closed | |
» | PS/2 mouse IRQ12 enabled | X162 | Pins 1 & 2 closed |
PS/2 mouse IRQ12 disabled | X162 | Pins 2 & 3 closed | |
» | Monitor type select color | X165 | Pins 1 & 2 closed |
Monitor type select monochrome | X165 | Pins 2 & 3 closed | |
» | CMOS memory normal operation | X166 | Pins 1 & 2 closed |
CMOS memory clear | X166 | Pins 2 & 3 closed | |
Floppy drive write protect disabled | X192 | Pins 1 & 2 closed | |
Floppy drive write protect enabled | X192 | Pins 2 & 3 closed | |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
4MB | (1) 1M x 36 | None |
8MB | (1) 2M x 36 | None |
8MB | (1) 1M x 36 | (1) 1M x 36 |
12MB | (1) 2M x 36 | (1) 1M x 36 |
16MB | (1) 2M x 36 | (1) 2M x 36 |
16MB | (1) 4M x 36 | None |
24MB | (1) 4M x 36 | (1) 2M x 36 |
32MB | (1) 4M x 36 | (1) 4M x 36 |
32MB | (1) 8M x 36 | None |
VIDEO MEMORY CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
512KB | 512KB | None |
1MB | 512KB | 512KB |
Note: The size of the chip is unidentified. | ||
CPU SPEED SELECTION | |
Speed | X41 |
25MHz | Pins 1 & 2 closed |
33MHz | Pins 2 & 3 closed |
50iMHz | Pins 1 & 2 closed |
66iMHz | Pins 2 & 3 closed |
CPU TYPE SELECTION | |
Type | X33 |
80486SX | Pins 1 & 2 closed |
80486SX2 | Pins 2 & 3 closed |
80486DX | Pins 2 & 3 closed |
80486DX2 | Pins 2 & 3 closed |
CPU TYPE SELECTION | ||
Type | X32 | |
| » | Write through | Pins 1 & 2 closed |
Write back | Pins 2 & 3 closed | |
MISCELLANEOUS TECHNICAL NOTE |
Note: The location of pin 1 on the connectors are unidentified. Jumpers that are not labeled may be factory configured. |