
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 Memory  2MB WRAM
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), floppy
(backplane)           drive interface, game/MIDI port, parallel port,
                      100Base-T connector, 10Base-2 connector, audio in -
                      CD-ROM, fax/modem connector
NPU Options           None

[Image]

                                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 connector       CN8

  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 (CONT)

      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       Clock    Multiplier     SW1/1    SW1/2     SW1/3     SW1/4
   speed     speed

  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

[Image]

                                CONNECTIONS

  Purpose                     Location     Purpose              Location

  Logic board connectors         CN1       SCSI interface         CN9
                                           LED

  Video in connector             CN2       Game/MIDI port         CN10

  IDE interface 1                CN3       Audio in  CD-ROM      CN11

  IDE interface 2                CN4       Fax/modem              CN12
                                           connector

  Floppy drive interface         CN5       Audio connector        CN13

  100Base-T connector            CN6       Control panel          CN14
                                           connector

  10Base-T/10Base-2              CN7       32-bit PCI slots    PC1  PC2
  connector

  Chassis fan power              CN8

