SIEMENS-NIXDORF INFORMATIONSSYSTEME AG
SYSTEM BOARD D981
Device Type | Mainboard |
Processor | Pentium II |
Processor Speed | 233/266/300/333/366MHz |
Chip Set | Unidentified |
Video Chip Set | None |
Maximum Onboard Memory | 512MB (EDO & SDRAM supported) |
Maximum Video Memory | None |
Cache | 512KB (located on Pentium II CPU) |
BIOS | Unidentified |
Dimensions | 305mm x 244mm |
I/O Options | 32-bit PCI slots (4), floppy drive interface, game/MIDI port, green PC connector, IDE interfaces (2), Ultra Wide SCSI interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connector, USB connectors (3), ATX power connector, AGP slot, line in, line out, microphone in, audio in – CD-ROM |
NPU Options | None |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
AGP slot | AGP | Soft off power supply | C18 |
ATX power connector | ATX | Intrusion connector | C19 |
Auxiliary in | C1 | Game/MIDI port | CN1 |
Audio in – CD-ROM | C2 | Microphone in | CN2 |
Voice modem connector | C3 | Line in | CN3 |
Device ID & temperature | C4 | Line out | CN4 |
USB connector - internal | C5 | Parallel port | CN5 |
Chassis fan power | C6 | Serial port 1 | CN6 |
Power supply monitor | C7 | Serial port 2 | CN7 |
Chip card reader | C8 | USB connector 1 - external | CN8 |
CPU fan power | C9 | USB connector 2 - external | CN9 |
Wake on LAN connector | C10 | PS/2 mouse port | CN10 |
SCSI interface LED | C11 | Ultra Wide SCSI interface | CN11 |
Control panel 1 | C12 | Floppy drive interface | CN12 |
I2C connector | C13 | Ultra Wide SCSI interface | CN13 |
Control panel 2 | C14 | IDE interface 1 | CN14 |
Speaker | C15 | IDE interface 2 | CN15 |
IR connector | C16 | 32-bit PCI slots | PC1 – PC4 |
Wake on modem connector | C17 | ||
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
» | Factory configured - do not alter | SW1/1 | Off |
» | Flash BIOS normal operation | SW1/2 | Off |
Flash BIOS recovery mode | SW1/2 | On | |
» | Floppy drive write protect disabled | SW1/3 | Off |
Floppy drive write protect enabled | SW1/3 | On | |
» | Factory configured - do not alter | SW1/4 | Unidentified |
DIMM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
8MB | (1) 1M x 64 | None | None | None |
16MB | (1) 2M x 64 | None | None | None |
16MB | (1) 1M x 64 | (1) 1M x 64 | None | None |
24MB | (1) 2M x 64 | (1) 1M x 64 | None | None |
24MB | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x 64 | None |
DIMM CONFIGURATION (CON’T) | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
32MB | (1) 4M x 64 | None | None | None |
32MB | (1) 2M x 64 | (1) 2M x 64 | None | None |
32MB | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x 64 |
40MB | (1) 4M x 64 | (1) 1M x 64 | None | None |
48MB | (1) 4M x 64 | (1) 2M x 64 | None | None |
48MB | (1) 2M x 64 | (1) 2M x 64 | (1) 2M x 64 | None |
64MB | (1) 2M x 64 | (1) 2M x 64 | (1) 2M x 64 | (1) 2M x 64 |
64MB | (1) 8M x 64 | None | None | None |
64MB | (1) 4M x 64 | (1) 4M x 64 | None | None |
72MB | (1) 8M x 64 | (1) 1M x 64 | None | None |
80MB | (1) 8M x 64 | (1) 2M x 64 | None | None |
96MB | (1) 8M x 64 | (1) 4M x 64 | None | None |
96MB | (1) 4M x 64 | (1) 4M x 64 | (1) 4M x 64 | None |
128MB | (1) 16M x 64 | None | None | None |
128MB | (1) 8M x 64 | (1) 8M x 64 | None | None |
128MB | (1) 4M x 64 | (1) 4M x 64 | (1) 4M x 64 | (1) 4M x 64 |
136MB | (1) 16M x 64 | (1) 1M x 64 | None | None |
144MB | (1) 16M x 64 | (1) 2M x 64 | None | None |
152MB | (1) 16M x 64 | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x 64 |
160MB | (1) 16M x 64 | (1) 4M x 64 | None | None |
176MB | (1) 16M x 64 | (1) 2M x 64 | (1) 2M x 64 | (1) 2M x 64 |
192MB | (1) 16M x 64 | (1) 8M x 64 | None | None |
192MB | (1) 8M x 64 | (1) 8M x 64 | (1) 8M x 64 | None |
224MB | (1) 16M x 64 | (1) 4M x 64 | (1) 4M x 64 | (1) 4M x 64 |
256MB | (1) 16M x 64 | (1) 16M x 64 | None | None |
256MB | (1) 8M x 64 | (1) 8M x 64 | (1) 8M x 64 | (1) 8M x 64 |
272MB | (1) 16M x 64 | (1) 16M x 64 | (1) 1M x 64 | (1) 1M x 64 |
288MB | (1) 16M x 64 | (1) 16M x 64 | (1) 2M x 64 | (1) 2M x 64 |
320MB | (1) 16M x 64 | (1) 16M x 64 | (1) 4M x 64 | (1) 4M x 64 |
320MB | (1) 16M x 64 | (1) 8M x 64 | (1) 8M x 64 | (1) 8M x 64 |
384MB | (1) 16M x 64 | (1) 16M x 64 | (1) 16M x 64 | None |
512MB | (1) 16M x 64 | (1) 16M x 64 | (1) 16M x 64 | (1) 16M x 64 |
Note: Board accepts EDO & SDRAM memory. | ||||
CACHE CONFIGURATION |
Note: 512KB cache is located on the Pentium II CPU. |
CPU SPEED SELECTION | ||||||
CPU speed | Clock speed | Multiplier | SW1/5 | SW1/6 | SW1/7 | SW1/8 |
233MHz | 66MHz | 3.5x | On | On | Off | Off |
266MHz | 66MHz | 4x | On | Off | On | On |
300MHz | 66MHz | 4.5x | On | Off | On | Off |
333MHz | 66MHz | 5x | On | Off | Off | On |
366MHz | 66MHz | 5.5x | On | Off | Off | Off |