
GENOA SYSTEMS CORPORATION

TURBOEXPRESS 486PCI

Processor      80486SX/80487SX/80486DX/ODP486SX/80486DX2/Pentium Overdrive
Processor      25/33/50(internal)/66(internal)MHz
Speed
Chip Set       Intel Saturn
Max. Onboard   128MB
DRAM
Cache          128/256/512KB
BIOS           AMI
Dimensions     330mm x 218mm
I/O Options    32-bit PCI local bus slots (4)
NPU Options    None

[Image]

                                CONNECTIONS

  Purpose                  Location     Purpose                 Location

  Power LED & keylock        JP17       32-bit PCI Local bus       S1
                                        slot

  Speaker                    JP18       32-bit PCI Local bus       S2
                                        slot

  Reset switch               JP19       32-bit PCI Local bus       S3
                                        slot

  Turbo LED                  JP20       32-bit PCI Local bus       S4
                                        slot

  Turbo switch               JP21

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

     Cache enabled                           JP4           pins 2 & 3
                                                              closed

      Cache disabled                          JP4           pins 1 & 2
                                                              closed

                            DRAM CONFIGURATION

     Size          Bank 0        Bank 1         Bank 2         Bank 3

      2MB       (1) 1M x 36    (1) 1M x 36       NONE           NONE

      4MB       (1) 1M x 36    (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

      4MB       (1) 2M x 36    (1) 2M x 36       NONE           NONE

      6MB       (1) 1M x 36    (1) 1M x 36    (1) 2M x 36    (1) 2M x 36

      6MB       (1) 2M x 36    (1) 2M x 36    (1) 1M x 36    (1) 1M x 36

      8MB       (1) 2M x 36    (1) 2M x 36    (1) 2M x 36    (1) 2M x 36

      8MB       (1) 4M x 36    (1) 4M x 36       NONE           NONE

     10MB       (1) 1M x 36    (1) 1M x 36    (1) 4M x 36    (1) 4M x 36

     10MB       (1) 4M x 36    (1) 4M x 36    (1) 1M x 36    (1) 1M x 36

     12MB       (1) 2M x 36    (1) 2M x 36    (1) 4M x 36    (1) 4M x 36

     12MB       (1) 4M x 36    (1) 4M x 36    (1) 2M x 36    (1) 2M x 36

     16MB       (1) 4M x 36    (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

     16MB       (1) 8M x 36    (1) 8M x 36       NONE           NONE

     18MB       (1) 1M x 36    (1) 1M x 36    (1) 8M x 36    (1) 8M x 36

     18MB       (1) 8M x 36    (1) 8M x 36    (1) 1M x 36    (1) 1M x 36

     20MB       (1) 2M x 36    (1) 2M x 36    (1) 8M x 36    (1) 8M x 36

     20MB       (1) 8M x 36    (1) 8M x 36    (1) 2M x 36    (1) 2M x 36

     24MB       (1) 4M x 36    (1) 4M x 36    (1) 8M x 36    (1) 8M x 36

     24MB       (1) 8M x 36    (1) 8M x 36    (1) 4M x 36    (1) 4M x 36

     32MB       (1) 8M x 36    (1) 8M x 36    (1) 8M x 36    (1) 8M x 36

     32MB       (1) 16M x 36   (1) 16M x 36      NONE           NONE

     34MB       (1) 1M x 36    (1) 1M x 36    (1) 16M x 36  (1) 16M x 36

     34MB       (1) 16M x 36   (1) 16M x 36   (1) 1M x 36    (1) 1M x 36

     36MB       (1) 16M x 36   (1) 16M x 36   (1) 2M x 36    (1) 2M x 36

     36MB       (1) 2M x 36    (1) 2M x 36    (1) 16M x 36  (1) 16M x 36

     40MB       (1) 4M x 36    (1) 4M x 36    (1) 16M x 36  (1) 16M x 36

     40MB       (1) 16M x 36   (1) 16M x 36   (1) 4M x 36    (1) 4M x 36

     48MB       (1) 8M x 36    (1) 8M x 36    (1) 16M x 36  (1) 16M x 36

     48MB       (1) 16M x 36   (1) 16M x 36   (1) 8M x 36    (1) 8M x 36

     64MB       (1) 16M x 36   (1) 16M x 36   (1) 16M x 36  (1) 16M x 36

     64MB       (1) 32M x 36   (1) 32M x 36      NONE           NONE

     66MB       (1) 1M x 36    (1) 1M x 36    (1) 32M x 36  (1) 32M x 36

     66MB       (1) 32M x 36   (1) 32M x 36   (1) 1M x 36    (1) 1M x 36

     68MB       (1) 2M x 36    (1) 2M x 36    (1) 32M x 36  (1) 32M x 36

     68MB       (1) 32M x 36   (1) 32M x 36   (1) 2M x 36    (1) 2M x 36

     72MB       (1) 4M x 36    (1) 4M x 36    (1) 32M x 36  (1) 32M x 36

     72MB       (1) 32M x 36   (1) 32M x 36   (1) 4M x 36    (1) 4M x 36

                        DRAM CONFIGURATION (CONT.)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

     80MB        (1) 8M x 36   (1) 8M x 36    (1) 32M x 36   (1) 32M x 36

     80MB        (1) 32M x 36  (1) 32M x 36   (1) 8M x 36    (1) 8M x 36

     96MB        (1) 16M x 36  (1) 16M x 36   (1) 32M x 36   (1) 32M x 36

     96MB        (1) 32M x 36  (1) 32M x 36   (1) 16M x 36   (1) 16M x 36

     128MB       (1) 32M x 36  (1) 32M x 36   (1) 32M x 36   (1) 32M x 36

                      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

     512KB       (4) 128K x 8        NONE        (1) 32K x 8

                        CACHE JUMPER CONFIGURATION

    Size          JP2             JP3            JP12           JP13

   128KB       pins 1 & 2      pins 2 & 3        Open           Open
                 closed          closed

   256KB       pins 2 & 3      pins 1 & 2       Closed          Open
                 closed          closed

   512KB       pins 2 & 3      pins 2 & 3       Closed         Closed
                 closed          closed

                          CPU TYPE CONFIGURATION

        Type               JP14              JP15              JP16

       80486SX           pins 1 & 2          Open           pins 2 & 3
                          closed                              closed

       80487SX           pins 1 & 2       pins 2 & 3          Closed
                          closed            closed

       80486DX           pins 1 & 2       pins 1 & 2          Closed
                          closed            closed

      ODP486SX           pins 1 & 2       pins 2 & 3          Closed
                          closed            closed

      80486DX2           pins 1 & 2       pins 1 & 2          Closed
                          closed            closed

  Pentium Overdrive      pins 2 & 3       pins 2 & 3          Closed
                          closed            closed

                          CPU SPEED CONFIGURATION

      Speed              JP5                JP10               JP11

      25MHz           pins 1 & 2            Open              Closed
                        closed

      33MHz           pins 2 & 3           Closed              Open
                        closed

     50i MHz          pins 1 & 2            Open              Closed
                        closed

     66i MHz          pins 2 & 3           Closed              Open
                        closed

                           PCI INTERRUPT SELECT

       Setting             JP22              JP23              JP24

         IRQ15          pins 2 & 3       pins 1 & 2         pins 1 & 2
                          closed            closed            closed

          IRQ11          pins 1 & 2       pins 2 & 3         pins 1 & 2
                          closed            closed            closed

          IRQ5           pins 1 & 2       pins 1 & 2         pins 2 & 3
                          closed            closed            closed

          None           pins 1 & 2       pins 1 & 2         pins 1 & 2
                          closed            closed            closed

  Note:There are three jumpers to be set for the PCI interrupt
  connection. When you connect an ISA IRQ to the PCI bus, that IRQ is
  unavailable to the ISA bus.

                         PCI IDE IRQ14 CONNECTION

            Type                     JP27                    JP28

     ISA IDE controller        pins 3 & 4 closed            Closed

  PCI IDE controller (edge     pins 4 & 5 closed             Open
          trigger)

     PCI IDE controller        pins 1 & 2 closed             Open
      (level trigger)

