COMPAQ COMPUTER CORPORATION
PROFESSIONAL WORKSTATION 5100
Device Type | Mainboard |
Processor | Pentium II |
Processor Speed | 266/300MHz |
Chip Set | Unidentified |
Video Chip Set | None |
Maximum Onboard Memory | 2GB (EDO supported) |
Maximum Video Memory | None |
Cache | 256/512KB (located on Pentium II CPU) |
BIOS | Unidentified |
Dimensions | 254mm x 218mm |
I/O Options | Ethernet BNC connector, Ethernet 10BaseT connector, floppy drive interface, IDE interface, SCSI interface, Wide Ultra SCSI interface, parallel port, PS/2 mouse port, serial ports (2), riser slot, VRM connectors (2), USB connectors (2), ATX power connector, line in, line out, microphone in, headphone connector |
NPU Options | None |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
ATX power connector | ATX | Serial port 1 | CN11 |
Power switch & LEDs | C1 | Parallel port | CN12 |
Line in | CN1 | Ultra Wide SCSI interface | CN13 |
Line out | CN2 | PS/2 mouse port | CN14 |
Microphone in | CN3 | Floppy drive interface | CN15 |
Headphone connector | CN4 | SCSI interface | CN16 |
USB connector 1 | CN5 | IDE interface | CN17 |
USB connector 2 | CN6 | External battery | J21/pins 1 - 4 |
Ethernet 10BaseT connector | CN7 | Riser slot | SL1 |
Ethernet BNC connector | CN8 | VRM connector | VRM1 |
Serial port 2 | CN10 | VRM connector | VRM2 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
» | Factory configured - do not alter | CN9 | Unidentified |
» | Battery type select internal | J21 | Pins 6 & 7 closed |
Battery type select external | J21 | Pins 5 & 6 closed | |
» | Password enabled | SW1/1 | Off |
Password disabled | SW1/1 | On | |
DIMM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
64MB | (4) 2M x 64 | None |
128MB | (4) 4M x 64 | None |
128MB | (4) 2M x 64 | (4) 2M x 64 |
192MB | (4) 4M x 64 | (4) 2M x 64 |
256MB | (4) 8M x 64 | None |
256MB | (4) 4M x 64 | (4) 4M x 64 |
320MB | (4) 8M x 64 | (4) 2M x 64 |
384MB | (4) 8M x 64 | (4) 4M x 64 |
512MB | (4) 16M x 64 | None |
512MB | (4) 8M x 64 | (4) 8M x 64 |
576MB | (4) 16M x 64 | (4) 2M x 64 |
640MB | (4) 16M x 64 | (4) 4M x 64 |
768MB | (4) 16M x 64 | (4) 8M x 64 |
1024MB | (4) 32M x 64 | None |
DIMM CONFIGURATION (CON’T) | ||
Size | Bank 0 | Bank 1 |
1024MB | (4) 16M x 64 | (4) 16M x 64 |
1088MB | (4) 32M x 64 | (4) 2M x 64 |
1152MB | (4) 32M x 64 | (4) 4M x 64 |
1280MB | (4) 32M x 64 | (4) 8M x 64 |
1536MB | (4) 32M x 64 | (4) 16M x 64 |
2048MB | (4) 32M x 64 | (4) 32M 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 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 |
266MHz | 66MHz | 4x | Off | On | On | Off | Off |
300MHz | 66MHz | 4.5x | Off | On | Off | Off | Off |