DIGITAL EQUIPMENT CORPORATION
DIGITAL SERVER 3100, 3200
Device Type | Mainboard |
Processor | Pentium Pro/Pentium II |
Processor Speed | 133/166/200/233/266/300/333/366/400/433/466/500/533MHz |
Chip Set | Unidentified |
Video Chip Set | Unidentified |
Maximum Onboard Memory | 1GB (EDO supported) |
Maximum Video Memory | Unidentified |
Cache | 256/512KB (located on Pentium Pro/Pentium II CPU) |
BIOS | Unidentified |
Dimensions | 305mm x 244mm |
I/O Options | 32-bit PCI slots (3), floppy drive interface, SCSI interface, Wide Ultra SCSI interface, parallel port, PS/2 mouse port, serial ports (2), VGA port, CPU slot |
NPU Options | None |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | C1 | VGA port | CN4 |
Chassis fan power | C2 | PS/2 mouse port | CN5 |
Chassis fan power | C3 | Ultra Wide SCSI interface | CN6 |
Front panel connector | C4 | SCSI interface | CN7 |
Ethernet daughter connector | C5 | Floppy drive interface | CN8 |
Remote Server Management | C6 | 5v power | P1 |
Serial port | CN1 | 3.3v power | P2 |
Serial port | CN2 | 32-bit PCI slots | PC1 – PC3 |
Parallel port | CN3 | CPU slot | SL1 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
» | EISA slot 4 master delay select normal | J30 | Pins 1 & 2 closed |
EISA slot 4 master delay select delay one clock cycle | J30 | Pins 2 & 3 closed | |
» | EISA slot 5 master delay select normal | J31 | Pins 1 & 2 closed |
EISA slot 5 master delay select delay one clock cycle | J31 | Pins 2 & 3 closed | |
» | BIOS upgrade enabled | SW1/1 | On |
BIOS upgrade disabled | SW1/1 | Off | |
» | BIOS normal operation | SW1/2 | Off |
BIOS recovery mode | SW1/2 | On | |
» | Boot block update disabled | SW1/3 | Off |
Boot block update enabled | SW1/3 | On | |
» | Password normal operation | SW1/4 | Off |
Password clear | SW1/4 | On | |
» | RSM not installed | SW1/5 | On |
RSM installed | SW1/5 | Off | |
» | CMOS memory normal operation | SW1/6 | Off |
CMOS memory clear | SW1/6 | On | |
» | Factory configured - do not alter | SW1/7 | Off |
» | Factory configured - do not alter | SW1/8 | Off |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
VRM connector | CN1 | VRM connector | CN2 |
SIMM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
64MB | (2) 8M x 36 | None | None | None |
128MB | (2) 16M x 36 | None | None | None |
128MB | (2) 8M x 36 | (2) 8M x 36 | None | None |
192MB | (2) 16M x 36 | (2) 8M x 36 | None | None |
192MB | (2) 8M x 36 | (2) 8M x 36 | (2) 8M x 36 | None |
256MB | (2) 16M x 36 | (2) 16M x 36 | None | None |
256MB | (2) 8M x 36 | (2) 8M x 36 | (2) 8M x 36 | (2) 8M x 36 |
320MB | (2) 16M x 36 | (2) 8M x 36 | (2) 8M x 36 | (2) 8M x 36 |
384MB | (2) 16M x 36 | (2) 16M x 36 | (2) 16M x 36 | None |
448MB | (2) 32M x 36 | (2) 8M x 36 | (2) 8M x 36 | (2) 8M x 36 |
SIMM CONFIGURATION (CON’T) | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
512MB | (2) 32M x 36 | (2) 32M x 36 | None | None |
512MB | (2) 16M x 36 | (2) 16M x 36 | (2) 16M x 36 | (2) 16M x 36 |
640MB | (2) 32M x 36 | (2) 16M x 36 | (2) 16M x 36 | (2) 16M x 36 |
768MB | (2) 32M x 36 | (2) 32M x 36 | (2) 32M x 36 | None |
1024MB | (2) 32M x 36 | (2) 32M x 36 | (2) 32M x 36 | (2) 32M x 36 |
Note: Board accepts EDO memory. | ||||
CACHE CONFIGURATION |
Note: 256KB/512KB cache is located on the Pentium Pro CPU. |
CPU SPEED SELECTION | ||||||
CPU speed | Clock speed | Multiplier | SW1/1 | SW1/2 | SW1/3 | SW1/4 |
133MHz | 66MHz | 2x | Off | Off | Off | Off |
166MHz | 66MHz | 2.5x | Off | On | Off | Off |
200MHz | 66MHz | 3x | Off | Off | On | Off |
233MHz | 66MHz | 3.5x | Off | On | On | Off |
266MHz | 66MHz | 4x | Off | Off | Off | On |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
VRM connector | CN1 | VRM connector | CN2 |
DIMM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
64MB | (1) 8M x 64 | None | None | None |
128MB | (1) 16M x 64 | None | None | None |
128MB | (1) 8M x 64 | (1) 8M x 64 | None | None |
192MB | (1) 16M x 64 | (1) 8M x 64 | None | None |
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 |
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 |
200MHz | 66MHz | 3x | Off | On | Off | Off |
233MHz | 66MHz | 3.5x | On | On | Off | Off |
266MHz | 66MHz | 4x | Off | Off | On | Off |
300MHz | 66MHz | 4.5x | On | Off | On | Off |
333MHz | 66MHz | 5x | Off | On | On | Off |
366MHz | 66MHz | 5.5x | On | On | On | Off |
400MHz | 66MHz | 6x | Off | Off | Off | On |
433MHz | 66MHz | 6.5x | On | Off | Off | On |
466MHz | 66MHz | 7x | Off | On | Off | On |
500MHz | 66MHz | 7.5x | On | On | Off | On |
533MHz | 66MHz | 8x | Off | Off | On | On |
CPU SPEED SELECTION (CON’T) | ||||||
CPU speed | Clock speed | Multiplier | SW1/5 | SW1/6 | SW1/7 | SW1/8 |
200MHz | 66MHz | 3x | On | On | On | On |
233MHz | 66MHz | 3.5x | On | On | On | On |
266MHz | 66MHz | 4x | On | On | On | On |
300MHz | 66MHz | 4.5x | On | On | On | On |
333MHz | 66MHz | 5x | On | On | On | On |
366MHz | 66MHz | 5.5x | On | On | On | On |
400MHz | 66MHz | 6x | On | On | On | On |
433MHz | 66MHz | 6.5x | On | On | On | On |
466MHz | 66MHz | 7x | On | On | On | On |
500MHz | 66MHz | 7.5x | On | On | On | On |
533MHz | 66MHz | 8x | On | On | On | On |