
ASUS COMPUTER INTERNATIONAL

PCI/I-486SP3G

Processor   80486SX/80486SX2/80487SX/80486DX/ODP486SX/80486DX2/80486DX4/
            Pentium Overdrive
Processor   25/33/50(internal)/66(internal)/100(internal)MHz
Speed
Chip Set    Intel
Max.        128MB
Onboard
DRAM
Cache       128/256/512KB
BIOS        Award
Dimensions  330mm x 218mm
I/O Options 32-bit PCI bus slots (3), floppy drive interface, green PC
            feature, IDE interface, parallel port, PS/2 mouse port, serial
            ports (2), SCSI interface
NPU Options None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  PS/2 mouse port             J1       Speaker                     J9

  Serial port 2               J2       Reset switch               J10

  Serial port 1               J3       Turbo LED                  J11

  Parallel port               J4       Turbo switch               J12

  SCSI interface              J5       Green PC connector         J13

  Floppy drive interface      J6       IDE interface LED          JP14

  IDE interface               J7       SCSI interface LED         JP15

  Power LED & keylock         J8       32-bit PCI bus slots     PC1 - PC3

                        USER CONFIGURABLE SETTINGS

                 Function                     Jumper         Position

     SCSI termination enabled                 JP16            Open

      SCSI termination disabled                JP16          pins 1 & 2
                                                              closed

     On board SCSI controller disabled        JP17          pins 1 & 2
                                                              closed

      On board SCSI controller enabled         JP17            Open

     Factory configured - do not alter        JP19            Open

     Flash BIOS voltage select 12 volt        JP21          pins 1 & 2
                                                              closed

      Flash BIOS voltage select 5 volt         JP21          pins 2 & 3
                                                              closed

     On board mouse disabled(IRQ12)           JP22          pins 1 & 2
                                                              closed

      On board mouse enabled (IRQ12)           JP22          pins 2 & 3
                                                              closed

     80486DX4 clock multiple select 2x        JP33          pins 2 & 3
                                                              closed

      80486DX4 clock multiple select 3x        JP33            Open

                DRAM CONFIGURATION

      Size            Bank 0           Bank 1

       2MB        (2) 256K x 36         NONE

       4MB        (2) 256K x 36    (2) 256K x 36

       4MB        (2) 512K x 36         NONE

       6MB        (2) 512K x 36    (2) 256K x 36

       6MB        (2) 256K x 36    (2) 512K x 36

       8MB        (2) 512K x 36    (2) 512K x 36

       8MB         (2) 1M x 36          NONE

      10MB        (2) 256K x 36     (2) 1M x 36

      10MB         (2) 1M x 36     (2) 256K x 36

      12MB        (2) 512K x 36     (2) 1M x 36

      12MB         (2) 1M x 36     (2) 512K x 36

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

      16MB         (2) 2M x 36          NONE

      18MB        (2) 256K x 36     (2) 2M x 36

      18MB         (2) 2M x 36     (2) 256K x 36

      20MB         (2) 2M x 36     (2) 512K x 36

      20MB        (2) 512K x 36     (2) 2M x 36

      24MB         (2) 2M x 36      (2) 1M x 36

      24MB         (2) 1M x 36      (2) 2M x 36

            DRAM CONFIGURATION (CON'T)

      Size            Bank 0           Bank 1

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

      32MB         (2) 4M x 36          NONE

      34MB         (2) 4M x 36     (2) 256K x 36

      34MB        (2) 256K x 36     (2) 4M x 36

      36MB         (2) 4M x 36     (2) 512K x 36

      36MB        (2) 512K x 36     (2) 4M x 36

      40MB         (2) 4M x 36      (2) 1M x 36

      40MB         (2) 1M x 36      (2) 4M x 36

      48MB         (2) 2M x 36      (2) 4M x 36

      48MB         (2) 4M x 36      (2) 2M x 36

      64MB         (2) 8M x 36          NONE

      64MB         (2) 4M x 36      (2) 4M x 36

      66MB         (2) 8M x 36     (2) 256K x 36

      66MB        (2) 256K x 36     (2) 8M x 36

      68MB         (2) 8M x 36     (2) 512K x 36

      68MB        (2) 512K x 36     (2) 8M x 36

      72MB         (2) 8M x 36      (2) 1M x 36

      72MB         (2) 1M x 36      (2) 8M x 36

      80MB         (2) 8M x 36      (2) 2M x 36

      80MB         (2) 2M x 36      (2) 8M x 36

      96MB         (2) 4M x 36      (2) 8M x 36

      96MB         (2) 8M x 36      (2) 4M x 36

      128MB        (2) 8M x 36      (2) 8M 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          JP26           JP27           JP28            JP29

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

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

   512KB       pins 1 & 2     pins 1 & 2      pins 1 & 2      pins 1 & 2
                 closed         closed         closed          closed

                          CPU TYPE CONFIGURATION

      Type             JP30                JP31               JP32

   Non SL CPU        pins 2 & 3        pin 1 closed       pin 1 closed
                      closed

     SL CPU          pins 1 & 2         pins 1 & 2      pins 1 & 2 closed
                      closed              closed

  Note: One jumper cap closes between pin 1 on JP31 & pin 1 on JP32.

                          CPU TYPE CONFIGURATION

       Type            JP34          JP35           JP36          JP38

   80486SX/SX2      pins 1 & 2     pins 1 & 2    pins 2 & 3       Open
                      closed        closed         closed

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

   80486DX/DX2      pins 2 & 3     pins 1 & 2    pins 2 & 3       Open
                      closed        closed         closed

    ODP80486SX      pins 2 & 3     pins 1 & 2    pins 2 & 3       Open
                      closed        closed         closed

       P24D         pins 2 & 3     pins 2 & 3    pins 1 & 2,     Closed
                      closed        closed      4 & 5 closed

      Pentium       pins 2 & 3     pins 2 & 3    pins 1 & 2,      Open
    Overdrive         closed        closed      4 & 5 closed

                   CPU SPEED CONFIGURATION

        Speed                JP18                JP20

        25MHz          pins 2 & 3 closed   pins 2 & 3 closed

        33MHz          pins 1 & 2 closed   pins 2 & 3 closed

       50iMHz          pins 2 & 3 closed   pins 2 & 3 closed

       66iMHz          pins 1 & 2 closed   pins 2 & 3 closed

       100iMHz         pins 1 & 2 closed   pins 2 & 3 closed

                  DMA CHANNEL CONFIGURATION

       Channel               JP11                JP12

        DMA 1          pins 1 & 2 closed   pins 1 & 2 closed

        DMA 3          pins 2 & 3 closed   pins 2 & 3 closed

             PCI INTERRUPT CONFIGURATION (IRQ 5)

      PCI slot               JP1                  JP6

       Default         pins 2 & 3 closed   pins 2 & 3 closed

         PC1           pins 1 & 2 closed          N/A

         PC2           pins 3 & 4 closed          N/A

         PC3                 N/A           pins 1 & 2 closed

      NCR SCSI               N/A           pins 3 & 4 closed

             PCI INTERRUPT CONFIGURATION (IRQ 9)

      PCI slot               JP2                  JP7

       Default         pins 2 & 3 closed   pins 2 & 3 closed

         PC1           pins 1 & 2 closed          N/A

         PC2           pins 3 & 4 closed          N/A

         PC3                 N/A           pins 1 & 2 closed

      NCR SCSI               N/A           pins 3 & 4 closed

             PCI INTERRUPT CONFIGURATION (IRQ 11)

      PCI slot               JP3                  JP8

       Default         pins 2 & 3 closed   pins 2 & 3 closed

         PC1           pins 1 & 2 closed          N/A

         PC2           pins 3 & 4 closed          N/A

         PC3                 N/A           pins 1 & 2 closed

      NCR SCSI               N/A           pins 3 & 4 closed

             PCI INTERRUPT CONFIGURATION (IRQ 14)

      PCI slot               JP4                  JP9

       Default         pins 2 & 3 closed   pins 2 & 3 closed

         PC1           pins 1 & 2 closed          N/A

         PC2           pins 3 & 4 closed          N/A

         PC3                 N/A           pins 1 & 2 closed

      NCR SCSI               N/A           pins 3 & 4 closed

             PCI INTERRUPT CONFIGURATION (IRQ 15)

      PCI slot               JP5                 JP10

       Default         pins 2 & 3 closed   pins 2 & 3 closed

         PC1           pins 1 & 2 closed          N/A

         PC2           pins 3 & 4 closed          N/A

         PC3                 N/A           pins 1 & 2 closed

      NCR SCSI               N/A           pins 3 & 4 closed

  Note: The NCR SCSI is the on board SCSI controller.

