IPC CORPORATION, LTD.

IPC DYNASTY HE/

IPC VALUEMAGIC SERIES DESKTOP/

IPC VALUEMAGIC SERIES MINITOWER (MB486HE#40)

Processor        80486SX/80486DX/80486DX2/P23N/Pentium Overdrive
Processor Speed  25/33/50(internal)/66(internal)MHz
Chip Set         UMC
Max. Onboard DRAM32MB
Cache            128/256KB
BIOS             Phoenix
Dimensions       254mm x 218mm
I/O Options      32-bit VESA local bus slots (2)
NPU Options      None

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                                CONNECTIONS

  Purpose                  Location     Purpose                 Location

  External battery            J2        Speaker                    J8

  Reset switch                J4        Power LED                 JP6

  Turbo switch                J6        32-bit VESA local      SL1 & SL2
                                        bus slots

  Keylock                     J7

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Battery type select internal             J1             Closed

      Battery type select external             J1              Open

  »   Power good signal detect from           JP1           pins 1 & 2
      board                                                   closed

      Power good signal detect from           JP1           pins 2 & 3
      power supply                                            closed

  »   ELBA# enabled                           JP2           pins 1 & 2
                                                              closed

      LDEV1# enabled                          JP2           pins 2 & 3
                                                              closed

  »   Factory configured - do not             JP3           pins 1 & 2
      alter                                                   closed

  »   ADS delay select no delay               JP7           pins 1 & 2
                                                              closed

      ADS delay select 1-T delay              JP7           pins 2 & 3
                                                              closed

  »   CPURDY delay select no delay            JP8           pins 1 & 2
                                                              closed

      CPURDY delay select 1-T delay           JP8           pins 2 & 3
                                                              closed

  »   PQFP CPU disabled                       JP17            Closed

      PQFP CPU enabled                        JP17             Open

           DRAM CONFIGURATION

     Size        Bank 0        Bank 1

     4MB        (4) 1M x 9      NONE

     8MB        (4) 1M x 9   (4) 1M x 9

     16MB       (4) 4M x 9      NONE

     32MB       (4) 4M x 9   (4) 4M x 9

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

     128KB      (4) 32K x 8        NONE       (1) 8K x 8

     256KB      (4) 32K x 8    (4) 32K x 8    (1) 32K x 8

                   CACHE JUMPER CONFIGURATION

   Size        JP9       JP10       JP11       JP12       JP13

   128KB      2 & 3      2 & 3      Open      Closed     Closed

   256KB      1 & 2      1 & 2     Closed     Closed     Closed

  Note: Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

           Type                     JP14                    JP15

      80486SX (PQFP)                Open              pins 3 & 4 closed

       80486SX (PGA)                Open              pins 2 & 3 closed

      80486DX (PQFP)                Open              pins 3 & 4 closed

       80486DX (PGA)          pins 1 & 2 closed       pins 1 & 2, 3 & 4
                                                           closed

         80486DX2             pins 1 & 2 closed       pins 1 & 2, 3 & 4
                                                           closed

           P23N               pins 2 & 3 closed       pins 1 & 2, 3 & 4
                                                           closed

     Pentium Overdrive        pins 2 & 3 closed       pins 1 & 2, 3 & 4
                                                           closed

         CPU SPEED CONFIGURATION

        Speed                JP18

        25MHz         pins 2 & 3 closed

        33MHz         pins 1 & 2 closed

       50iMHz         pins 2 & 3 closed

       66iMHz         pins 1 & 2 closed

  BUS SPEED CONFIGURATION

  CPU speed        JP16

   <= 33MHz        Open

   > 33MHz        Closed