
DISTRIBUTED PROCESSING TECHNOLOGY

PM3755U2B

Card Type                  Hard drive controller
Chip Set                   Unidentified
Maximum Onboard Memory     256MB DRAM
I/O Options                SCSI connectors (2), expansion module
                           connectors (2)
Hard Drives supported      Up to 15 Ultra2/LVD Wide SCSI devices

                           Up to 45 Wide SCSI-2 or Ultra-wide SCSI devices
                           with expansion board upgrades
Floppy drives supported    None
Data Bus                   64-bit PCI
Card Size                  Full-length

[Image]

                                CONNECTIONS

          Function             Label           Function            Label

  32-bit header connector to    J7     68-pin SCSI connector        J11
  expansion module                     Ch. 0 - external

  64-bit header connector to    J8     4-pin connector - drive      P6
  expansion module                     active LED

  68-pin SCSI connector Ch.     J10
  0 - internal

  Note: Header connector to BB4050 battery module is unidentified

                        USER CONFIGURABLE SETTINGS

                Function                    Label           Position

  NVRAM reset to default settings             P4        Pins 1 & 2 closed

  NVRAM setup parameters retained             P4        Pins 3 & 4 closed

  Load enabled                                P9        Pins 1 & 2 closed

  Run enabled                                 P9        Pins 3 & 4 closed

                        DIMM MEMORY CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2         Bank 3

     16MB       (1)2MB x 64        None          None           None

     32MB       (1)2MB x 64    (1)2MB x 64       None           None

     48MB       (1)2MB x 64    (1)2MB x 64    (1)2MB x 64       None

     64MB       (1)2MB x 64    (1)2MB x 64    (1)2MB x 64    (1)2MB x 64

     64MB       (1)8MB x 64        None          None           None

     80MB       (1)8MB x 64    (1)2MB x 64       None           None

     144MB      (1)8MB x 64    (1)8MB x 64    (1)2MB x 64       None

     160MB      (1)8MB x 64    (1)8MB x 64    (1)2MB x 64       None

     128MB      (1)8MB x 64    (1)8MB x 64       None           None

     192MB      (1)8MB x 64    (1)8MB x 64    (1)8MB x 64       None

     208MB      (1)8MB x 64    (1)8MB x 64    (1)8MB x 64    (1)2MB x 64

     256MB      (1)8MB x 64    (1)8MB x 64    (1)8MB x 64    (1)8MB x 64

                             DIAGNOSTIC LED(S)

    LED           Color           Status              Condition

   LED1        Unidentified         On           Controller is ready;
                                                interrupts are enabled

   LED1        Unidentified        Off          Controller is inactive

   LED1        Unidentified      Blinking        Controller is active

   LED2        Unidentified         On       Non-maskable interrupt (NMI)
                                                       detected

   LED2        Unidentified        Off             NMI not detected

   LED3        Unidentified         On       Controller in idle loop mode

   LED3        Unidentified        Off        Controller not in idle loop
                                                         mode

   LED4        Unidentified         On       Interrupt is being processed

   LED4        Unidentified        Off          Interrupt is not being
                                                      processed

   LED5        Unidentified        Off                 Not used

   LED6        Unidentified         On         Cache controller is using
                                                 DMA to perform a data
                                                       transfer

   LED6        Unidentified        Off          Cache controller is not
                                              using DMA to perform a data
                                                       transfer

   LED7        Unidentified         On        Parity is being generated

   LED7        Unidentified        Off            Parity is not being
                                                      generated

   LED8        Unidentified         On         Command detected on SCSI

   LED8        Unidentified        Off       Command not detected on SCSI

    IRQ        Unidentified         On       Interrupt has been activated
                                                   on host PCI bus

    IRQ        Unidentified        Off          Interrupt has not been
                                              activated on host PCI bus

   ECCEN          Green             On          Cache is ECC protected

   ECCEN          Green            Off        Cache is not ECC protected

   ECCER           Red              On           Error detected. Cache
                                             failure information reported

   ECCER           Red             Off            Error not detected

[Image]

SX4055U2-1 EXPANSION MODULE

                                CONNECTIONS

         Function            Label            Function            Label

  68-pin SCSI connector        J2      64-bit auxiliary header      P3
  Ch. 1- internal                      connector to Controller
                                       card

  68-pin SCSI connector        J3      Header connector to          P5
  Ch. 1 - external                     Controller card

  Note: SX4055U2-1 expansion module supports an additional 15 Ultra2/LVD
  Wide SCSI devices

[Image]

SX4055U2-2

                                CONNECTIONS

         Function            Label            Function            Label

  68-pin SCSI connector        J1      68-pin SCSI connector        J4
  Ch. 2 - external                     Ch. 2 - internal

  68-pin SCSI connector        J2      64-bit auxiliary header      P3
  Ch. 1- internal                      connector to Controller
                                       card

  68-pin SCSI connector        J3      Header connector to          P5
  Ch. 1 - external                     Controller card

  Note: SX405U2-2 expansion module supports an additional 30 Ultra2/LVD
  Wide SCSI devices

[Image]

SX4055F FC-AL

                                CONNECTIONS

         Function            Label            Function            Label

  HSSDC FC-AL connector        P2      Header connector to          P5
  Ch. 1 - external                     Controller card

  64-bit auxiliary header      P3
  connector to Controller
  card

  Note: Fibre channel provided by expansion module supports up to 126
  additional devices

[Image]

BB4050 BATTERY BACKUP MODULE

                                CONNECTIONS

          Function            Label             Function           Label

  Battery cable connector       J1      Header connector to         P12
                                        Controller card

  Note: BB4050 battery backup module may only be installed on a PM3755U2B
  Controller

                             DIAGNOSTIC LED(S)

   LED         Color        Status                 Condition

   LED1     Unidentified      On        Trickle charge activity detected

   LED1     Unidentified      Off          Trickle charge activity not
                                                    detected

   LED2     Unidentified      On       Charging/recharging mode initiated

   LED2     Unidentified      Off         Battery module not charging

