
ASUS COMPUTER INTERNATIONAL

ISA-386U3

Processor         80386DX
Processor Speed   25/33/40MHz
Chip Set          UMC
Max. Onboard DRAM 32MB
Cache             64/128/256KB
BIOS              AMI
Dimensions        221mm x 234mm
I/O Options       None
NPU Options       80387/3167

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  Turbo LED                   CON1      Turbo switch              CON4

  Power LED & Keylock         CON2      Reset switch              CON5

  Speaker                     CON3

                        USER CONFIGURABLE SETTINGS

              Function                    Jumper             Position

     NPU select 3167 or none               JP1             pins 1 & 2
                                                              closed

      NPU select 80387                      JP1             pins 2 & 3
                                                              closed

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

      2MB         (4) 256K x 9   (4) 256K x 9

      4MB         (4) 1M x 9         NONE

      5MB         (4) 256K x 9    (4) 1M x 9

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

      16MB        (4) 4M x 9         NONE

      20MB        (4) 1M x 9      (4) 4M x 9

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

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

     64KB        (4) 8K x 8     (4) 8K x 8    (1) 8K x 8

     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               CJ1                CJ2                CJ3

      64KB            pins 2 & 3         pins 2 & 3            Open
                       closed              closed

      128KB           pins 1 & 2            Open              Closed
                       closed

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

