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# DIGITAL EQUIPMENT CORPORATION
PC 3400, PC 5400
Device Type Mainboard
Processor Pentium Pro
Processor Speed 150/166/180/200/210/233/240/266MHz
Chip Set Intel
Video Chip Set ESS
Maximum Onboard 192MB (EDO supported)
Memory
Maximum Video 2MB WRAM
Memory
Cache 256KB (located on Pentium Pro CPU)
BIOS Unidentified
Dimensions 254mm x 218mm
I/O Options (CPU) Parallel port, PS/2 mouse port, serial
ports (2), VGA feature connector, VGA port,
VRM connector, USB connectors (2)
I/O Options 32-bit PCI slots (2), IDE interfaces (2),
(backplane) floppy drive interface, game/MIDI port,
parallel port, 100Base-T connector,
10Base-2 connector, audio in - CD-ROM,
fax/modem connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+----------+--------------------+----------|
| Serial port | CN1 | PS/2 mouse port | CN6 |
|-----------------+----------+--------------------+----------|
| Serial port | CN2 | Parallel port | CN7 |
|-----------------+----------+--------------------+----------|
| USB connector 1 | CN3 | VGA feature | CN8 |
| | | connector | |
|-----------------+----------+--------------------+----------|
| USB connector 2 | CN4 | Video upgrade | CN9 |
| | | connectors | |
|-----------------+----------+--------------------+----------|
| VGA port | CN5 | VRM connector | VRM |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| » | Boot block update disabled | J27 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Boot block update enabled | J27 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Password disabled | SW1/5 | Off |
|---+-----------------------------------+-------+------------|
| | Password enabled | SW1/5 | On |
|---+-----------------------------------+-------+------------|
| » | BIOS normal operation | SW1/6 | Off |
|---+-----------------------------------+-------+------------|
| | BIOS recovery mode | SW1/6 | On |
|---+-----------------------------------+-------+------------|
| » | CMOS memory normal operation | SW1/7 | Off |
|---+-----------------------------------+-------+------------|
| | CMOS memory clear | SW1/7 | On |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | SW1/8 | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 8MB | (2) 1M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 16MB | (2) 2M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 24MB | (2) 1M x 36 | (2) 1M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 32MB | (2) 4M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 48MB | (2) 2M x 36 | (2) 2M x 36 | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 64MB | (2) 8M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 96MB | (2) 4M x 36 | (2) 4M x 36 | (2) 4M x 36 |
|------------+---------------+---------------+---------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 128MB | (2) 16M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 136MB | (2) 16M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 144MB | (2) 16M x 36 | (2) 1M x 36 | (2) 1M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 144MB | (2) 16M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 160MB | (2) 16M x 36 | (2) 2M x 36 | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 160MB | (2) 16M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 192MB | (2) 16M x 36 | (2) 4M x 36 | (2) 4M x 36 |
|------------+---------------+---------------+---------------|
| 192MB | (2) 16M x 36 | (2) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 192MB | (2) 8M x 36 | (2) 8M x 36 | (2) 8M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: 256KB cache is located on the Pentium Pro CPU. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Note: 1MB video memory is factory installed and is |
| not configurable. To increase to 2MB, install upgrade |
| module at CN9. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|SW1/1 |SW1/2 |SW1/3 |SW1/4 |
|---------+-----------+----------+------+------+------+------|
| 150MHz | 60MHz | 2.5x | Off | Off | On | On |
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2.5x | On | Off | On | On |
|---------+-----------+----------+------+------+------+------|
| 180MHz | 60MHz | 3x | Off | On | Off | On |
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x | On | On | Off | On |
|---------+-----------+----------+------+------+------+------|
| 210MHz | 60MHz | 3.5x | Off | Off | Off | On |
|---------+-----------+----------+------+------+------+------|
| 240MHz | 60MHz | 4x | Off | On | On | Off |
|---------+-----------+----------+------+------+------+------|
| 233MHz | 66MHz | 3.5x | On | Off | Off | On |
|---------+-----------+----------+------+------+------+------|
| 266MHz | 66MHz | 4x | On | On | On | Off |
+------------------------------------------------------------+
IMG IMG 2
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| Logic board | CN1 | SCSI interface | CN9 |
| connectors | | LED | |
|---------------------+----------+----------------+----------|
| Video in connector | CN2 | Game/MIDI port | CN10 |
|---------------------+----------+----------------+----------|
| IDE interface 1 | CN3 | Audio in – | CN11 |
| | | CD-ROM | |
|---------------------+----------+----------------+----------|
| IDE interface 2 | CN4 | Fax/modem | CN12 |
| | | connector | |
|---------------------+----------+----------------+----------|
| Floppy drive | CN5 | Audio | CN13 |
| interface | | connector | |
|---------------------+----------+----------------+----------|
| 100Base-T connector | CN6 | Control panel | CN14 |
| | | connector | |
|---------------------+----------+----------------+----------|
| 10Base-T/10Base-2 | CN7 | 32-bit PCI | PC1 – |
| connector | | slots | PC2 |
|---------------------+----------+----------------+----------|
| Chassis fan power | CN8 | | |
+------------------------------------------------------------+