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# DIGITAL EQUIPMENT CORPORATION
PC 5100
Device Type Mainboard
Processor AM K5/AM K6/Pentium
Processor Speed 90/120/133/150/166/200/233/266/300/333/366MHz
Chip Set Intel
Video Chip Set S3
Maximum Onboard 256MB (SDRAM supported)
Memory
Maximum Video 4MB
Memory
Cache 256/512KB
BIOS Unidentified
Dimensions 254mm x 218mm
I/O Options Ethernet 10BaseT connector, parallel port,
(mainboard) PS/2 mouse port, serial ports (2), VGA
feature connector, VGA port, USB connectors
(2), VRM connector
I/O Options IDE interfaces (2), floppy drive interface,
(backplane) audio in – CD-ROM, fax/modem connector 32-bit
PCI slots (2 or 3)
NPU Options None
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+----------+--------------------+----------|
| Serial port | CN1 | Ethernet 10BaseT | CN6 |
| | | connector | |
|-----------------+----------+--------------------+----------|
| VGA port | CN2 | Parallel port | CN7 |
|-----------------+----------+--------------------+----------|
| USB connector | CN3 | VGA feature | CN8 |
| | | connector | |
|-----------------+----------+--------------------+----------|
| USB connector | CN4 | VRM connector | VRM |
|-----------------+----------+--------------------+----------|
| PS/2 mouse port | CN5 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+---------+------------|
| » | Password normal operation | SW1/2 | Off |
|---+---------------------------------+---------+------------|
| | Password clear | SW1/2 | On |
|---+---------------------------------+---------+------------|
| » | BIOS normal operation | SW1/3 | Off |
|---+---------------------------------+---------+------------|
| | BIOS recovery mode | SW1/3 | On |
|---+---------------------------------+---------+------------|
| » | CMOS memory normal operation | SW1/4 | Off |
|---+---------------------------------+---------+------------|
| | CMOS memory clear | SW1/4 | On |
|---+---------------------------------+---------+------------|
| » | BIOS write disabled | SW1/5 | Off |
|---+---------------------------------+---------+------------|
| | BIOS write enabled | SW1/5 | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 16MB | (1) 2M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (1) 1M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 24MB | (1) 2M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 24MB | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | (1) 4M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 32MB | (1) 2M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | (1) 2M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 40MB | (1) 4M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 40MB | (1) 2M x 64 | (1) 2M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 48MB | (1) 2M x 64 | (1) 2M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 56MB | (1) 4M x 64 | (1) 2M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 64MB | (1) 8M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 64MB | (1) 4M x 64 | (1) 2M x 64 | (1) 2M x 64 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 64MB | (1) 4M x 64 | (1) 4M x 64 | None |
|------------+---------------+---------------+---------------|
| 72MB | (1) 8M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 72MB | (1) 4M x 64 | (1) 4M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 80MB | (1) 8M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 80MB | (1) 8M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 80MB | (1) 4M x 64 | (1) 4M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 88MB | (1) 8M x 64 | (1) 2M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 96MB | (1) 8M x 64 | (1) 2M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 96MB | (1) 8M x 64 | (1) 4M x 64 | None |
|------------+---------------+---------------+---------------|
| 96MB | (1) 4M x 64 | (1) 4M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 104MB | (1) 8M x 64 | (1) 4M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 112MB | (1) 8M x 64 | (1) 4M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 128MB | (1) 16M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 128MB | (1) 8M x 64 | (1) 4M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 128MB | (1) 8M x 64 | (1) 8M x 64 | None |
|------------+---------------+---------------+---------------|
| 136MB | (1) 16M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 136MB | (1) 8M x 64 | (1) 8M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 144MB | (1) 16M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 144MB | (1) 16M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 144MB | (1) 8M x 64 | (1) 8M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 152MB | (1) 16M x 64 | (1) 2M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 160MB | (1) 16M x 64 | (1) 2M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 160MB | (1) 16M x 64 | (1) 4M x 64 | None |
|------------+---------------+---------------+---------------|
| 160MB | (1) 8M x 64 | (1) 8M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 168MB | (1) 16M x 64 | (1) 4M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 176MB | (1) 16M x 64 | (1) 4M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 192MB | (1) 16M x 64 | (1) 4M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 192MB | (1) 16M x 64 | (1) 8M x 64 | None |
|------------+---------------+---------------+---------------|
| 192MB | (1) 8M x 64 | (1) 8M x 64 | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 200MB | (1) 16M x 64 | (1) 8M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 208MB | (1) 16M x 64 | (1) 8M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 224MB | (1) 16M x 64 | (1) 8M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 256MB | (1) 16M x 64 | (1) 8M x 64 | (1) 8M x 64 |
|------------------------------------------------------------|
| Note: Board accepts SDRAM memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 256KB | (2) 32K x 32 |
|----------------------------+-------------------------------|
| 512KB | (2) 64K x 32 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Note: 2MB video memory is factory installed and is |
| not configurable. To increase to 4MB, install upgrade |
| module at CN9. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|SW1/1 |SW1/6 |SW1/7 |SW1/8 |
|---------+-----------+----------+------+------+------+------|
| 90MHz | 60MHz | 1.5x | Off | Off | Off | Off |
|---------+-----------+----------+------+------+------+------|
| 120MHz | 60MHz | 2x | Off | Off | On | Off |
|---------+-----------+----------+------+------+------+------|
| 133MHz | 66MHz | 2x | On | Off | On | Off |
|---------+-----------+----------+------+------+------+------|
| 150MHz | 60MHz | 2.5x | Off | Off | On | On |
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2.5x | On | Off | On | On |
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x | On | Off | Off | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|SW1/1 |SW1/6 |SW1/7 |SW1/8 |
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2.5x | On | Off | On | On |
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x | On | Off | Off | On |
|---------+-----------+----------+------+------+------+------|
| 233MHz | 66MHz | 3.5x | On | Off | Off | Off |
|---------+-----------+----------+------+------+------+------|
| 266MHz | 66MHz | 4x | On | On | On | Off |
|---------+-----------+----------+------+------+------+------|
| 300MHz | 66MHz | 4.5x | On | On | On | On |
|---------+-----------+----------+------+------+------+------|
| 333MHz | 66MHz | 5x | On | On | Off | On |
|---------+-----------+----------+------+------+------+------|
| 366MHz | 66MHz | 5.5x | On | On | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|SW1/1 |SW1/6 |SW1/7 |SW1/8 |
|---------+-----------+----------+------+------+------+------|
| 90MHz | 60MHz | 1.5x | Off | Off | Off | Off |
|---------+-----------+----------+------+------+------+------|
| 120MHz | 60MHz | 2x | Off | Off | On | Off |
|---------+-----------+----------+------+------+------+------|
| 133MHz | 66MHz | 2x | On | Off | On | Off |
|---------+-----------+----------+------+------+------+------|
| 150MHz | 60MHz | 2.5x | Off | Off | On | On |
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2.5x | On | Off | On | On |
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x | On | Off | Off | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL MMX) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|SW1/1 |SW1/6 |SW1/7 |SW1/8 |
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2.5x | On | Off | On | On |
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x | On | Off | Off | On |
|---------+-----------+----------+------+------+------+------|
| 233MHz | 66MHz | 3.5x | On | Off | Off | Off |
+------------------------------------------------------------+
(IMG) IMG 2
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN1 | Control panel | CN7 |
| | | connector | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN2 | Chassis fan | CN8 |
| | | power | |
|-------------------+----------+------------------+----------|
| Floppy drive | CN3 | SCSI interface | CN9 |
| interface | | LED | |
|-------------------+----------+------------------+----------|
| Audio rear panel | CN4 | Micro switch | CN10 |
| connector | | connector | |
|-------------------+----------+------------------+----------|
| Audio in – CD-ROM | CN5 | Main logic board | CN11 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Fax/modem | CN6 | 32-bit PCI slots | PC1 – |
| connector | | | PC2 |
|------------------------------------------------------------|
| Note: A power connector is located on the reverse side of |
| this card. |
+------------------------------------------------------------+
(IMG) IMG 3
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Micro switch | CN1 | Control panel | CN7 |
| connector | | connector | |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN2 | Fax/modem | CN8 |
| | | connector | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN3 | Audio in – | CN9 |
| | | CD-ROM | |
|-------------------+----------+------------------+----------|
| Floppy drive | CN4 | Audio rear panel | CN10 |
| interface | | connector | |
|-------------------+----------+------------------+----------|
| SCSI interface | CN5 | Main logic board | CN11 |
| LED | | connector | |
|-------------------+----------+------------------+----------|
| Chassis fan power | CN6 | 32-bit PCI slots | PC1 – |
| | | | PC3 |
+------------------------------------------------------------+