DIGITAL EQUIPMENT CORPORATION
DIGITAL SERVER 1200
Device Type | Mainboard |
Processor | Pentium II |
Processor Speed | 233/266/300/333/366/400/433/466/500/533MHz |
Chip Set | Unidentified |
Video Chip Set | S3 |
Maximum Onboard Memory | 512MB (EDO supported) |
Maximum Video Memory | Unidentified |
Cache | 256/512KB (located on Pentium II CPU) |
BIOS | Unidentified |
Dimensions | 305mm x 244mm |
I/O Options | 32-bit PCI slots (5), Ethernet 10BaseT connector, floppy drive interface, Wide SCSI interface, parallel port, PS/2 mouse port, serial ports (2), VGA port, USB connectors (2), CPU slot |
NPU Options | None |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | C1 | Serial port | CN4 |
SCSI interface LED | C3 | Serial port | CN5 |
Chassis fan power | C4 | PS/2 mouse port | CN6 |
Front panel connector | C5 | USB connector 1 | CN7 |
RSM connector | C6 | USB connector 2 | CN8 |
LEDs | C7 | Wide SCSI interface | CN9 |
Ethernet 10BaseT connector | CN1 | Floppy drive interface | CN10 |
Parallel port | CN2 | 32-bit PCI slots | PC1 – PC5 |
VGA port | CN3 | CPU slot | SL1 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
» | BIOS upgrade enabled | SW1/1 | Off |
BIOS upgrade disabled | SW1/1 | On | |
» | BIOS normal operation | SW1/2 | On |
BIOS recovery mode | SW1/2 | Off | |
» | Password normal operation | SW1/3 | On |
Password clear | SW1/3 | Off | |
» | CMOS memory normal operation | SW1/4 | On |
CMOS memory clear | SW1/4 | Off | |
VIDEO MEMORY CONFIGURATION |
Note: The size of the video memory is unidentified. |

CONNECTIONS | |
Purpose | Location |
VRM connector | VRM |
DIMM CONFIGURATION | ||||
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 |
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 |
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 |
DIMM CONFIGURATION (CON’T) | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
144MB | (1) 16M x 64 | (1) 2M x 64 | None | None |
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 |
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 memory. | ||||
CACHE CONFIGURATION |
Note: 256KB/512KB cache is located on the Pentium II CPU. |
CPU SPEED SELECTION | ||||||
CPU speed | Clock speed | Multiplier | SW1/1 | SW1/2 | SW1/3 | SW1/4 |
233MHz | 66MHz | 3.5x | Off | Off | On | On |
266MHz | 66MHz | 4x | On | On | Off | On |
300MHz | 66MHz | 4.5x | Off | On | Off | On |
333MHz | 66MHz | 5x | On | Off | Off | On |
366MHz | 66MHz | 5.5x | Off | Off | Off | On |
400MHz | 66MHz | 6x | On | On | On | Off |
433MHz | 66MHz | 6.5x | Off | On | On | Off |
466MHz | 66MHz | 7x | On | Off | On | Off |
500MHz | 66MHz | 7.5x | Off | Off | On | Off |
533MHz | 66MHz | 8x | On | On | Off | Off |