
DIAMOND FLOWER, INC.

G486VPA (REV. A+)

Device     Mainboard
Type
Processor  CX486DX/CX486DX2/SGS\THOMPSON486DX/SGS\THOMPSON486DX2
           UMCU5SD/AM486DX2/AM486DX4/80486WB/80486SX/80486DX/80486DX2
           80486DX4/80486DX4ODP/P24T
Processor  25/33/40/50(internal)/50/63(internal)/66(internal)/80(internal)/
Speed      83(internal)/100(internal)MHz
Chip Set   VIA
Video Chip None
Set
Maximum    128MB
Onboard
Memory
Maximum    None
Video
Memory
Cache      128/256/512/1024KB
BIOS       Award
Dimensions 280mm x 220mm
I/O        32-bit PCI slots (4), floppy drive interface, green PC
Options    connector, IDE interfaces (2), parallel port, PS/2 mouse
           interface, serial ports (2)
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  PS/2 mouse interface       CN3       Power LED & keylock         J9

  Serial port 1               J1       Speaker                    J10

  Serial port 2               J2       Reset switch               J11

  Parallel port               J3       Green PC connector         J12

  IDE interface 2             J4       Turbo LED                  J13

  Floppy drive interface      J5       Green PC LED               J14

  IDE interface 1             J6       External battery           JP3

  IDE interface LED 1         J7       Chassis fan power          JP40

  IDE interface LED 2         J8       32-bit PCI slots         PC1 - PC4

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     Battery type select external            JP1           Pins 1 & 2
                                                              closed

      Battery type select internal            JP1           Pins 2 & 3
                                                              closed

     CMOS memory normal operation            JP2           Pins 1 & 2
                                                              closed

      CMOS memory clear                       JP2           Pins 2 & 3
                                                              closed

     Flash BIOS voltage select 12v           JP4           Pins 1 & 2
                                                              closed

      Flash BIOS voltage select 5v            JP4           Pins 2 & 3
                                                              closed

     Factory configured - do not alter       JP8              Open

     Factory configured - do not alter       JP12          Pins 1 & 2
                                                              closed

     PS/2 mouse disabled                     JP16          Pins 2 & 3
                                                              closed

      PS/2 mouse enabled                      JP16          Pins 1 & 2
                                                              closed

     Factory configured - do not alter       JP17          Pins 1 & 2
                                                              closed

     Factory configured - do not alter       JP20          Pins 1 & 2
                                                              closed

     Factory configured - do not alter       JP25          Pins 1 & 2
                                                              closed

     Factory configured - do not alter       JP27             Open

     Factory configured - do not alter       JP28          Pins 1 & 2
                                                              closed

                            SIMM CONFIGURATION

     Size         Bank 0          Bank 1         Bank 2         Bank 3

     1MB         (1) 256K x        None           None           None
                    36

     2MB         (1) 512K x        None           None           None
                    36

     2MB         (1) 256K x     (1) 256K x        None           None
                    36              36

     3MB         (1) 512K x     (1) 256K x        None           None
                    36              36

     3MB         (1) 256K x     (1) 256K x     (1) 256K x        None
                    36              36             36

     4MB        (1) 1M x 36        None           None           None

     4MB         (1) 512K x     (1) 256K x     (1) 256K x        None
                    36              36             36

                        SIMM CONFIGURATION (CON'T)

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     4MB         (1) 512K x    (1) 512K x        None           None
                    36             36

     4MB         (1) 256K x    (1) 256K x     (1) 256K x    (1) 256K x 36
                    36             36             36

     5MB        (1) 1M x 36    (1) 256K x        None           None
                                   36

     5MB         (1) 512K x    (1) 256K x     (1) 256K x    (1) 256K x 36
                    36             36             36

     6MB        (1) 1M x 36    (1) 256K x     (1) 256K x        None
                                   36             36

     6MB        (1) 1M x 36    (1) 512K x        None           None
                                   36

     6MB         (1) 512K x    (1) 512K x     (1) 512K x        None
                    36             36             36

     8MB        (1) 2M x 36       None           None           None

     8MB        (1) 1M x 36    (1) 512K x     (1) 512K x        None
                                   36             36

     8MB        (1) 1M x 36   (1) 1M x 36        None           None

     8MB         (1) 512K x    (1) 512K x     (1) 512K x    (1) 512K x 36
                    36             36             36

     9MB        (1) 2M x 36    (1) 256K x        None           None
                                   36

     10MB       (1) 2M x 36    (1) 256K x     (1) 256K x        None
                                   36             36

     10MB       (1) 2M x 36    (1) 512K x        None           None
                                   36

     10MB       (1) 1M x 36    (1) 512K x     (1) 512K x    (1) 512K x 36
                                   36             36

     11MB       (1) 2M x 36    (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

     12MB       (1) 2M x 36    (1) 512K x     (1) 512K x        None
                                   36             36

     12MB       (1) 2M x 36   (1) 1M x 36        None           None

     12MB       (1) 1M x 36   (1) 1M x 36    (1) 1M x 36        None

     16MB       (1) 4M x 36       None           None           None

     16MB       (1) 2M x 36   (1) 1M x 36    (1) 1M x 36        None

     16MB       (1) 2M x 36   (1) 2M x 36        None           None

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

     17MB       (1) 4M x 36    (1) 256K x        None           None
                                   36

     18MB       (1) 4M x 36    (1) 256K x     (1) 256K x        None
                                   36             36

     18MB       (1) 4M x 36    (1) 512K x        None           None
                                   36

     19MB       (1) 4M x 36    (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

     20MB       (1) 4M x 36    (1) 512K x     (1) 512K x        None
                                   36             36

     20MB       (1) 4M x 36   (1) 1M x 36        None           None

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

     22MB       (1) 4M x 36    (1) 512K x     (1) 512K x    (1) 512K x 36
                                   36             36

     24MB       (1) 4M x 36   (1) 1M x 36    (1) 1M x 36        None

     24MB       (1) 4M x 36   (1) 2M x 36        None           None

     24MB       (1) 2M x 36   (1) 2M x 36    (1) 2M x 36        None

     28MB       (1) 4M x 36   (1) 1M x 36    (1) 1M x 36     (1) 1M x 36

     32MB       (1) 8M x 36       None           None           None

     32MB       (1) 4M x 36   (1) 2M x 36    (1) 2M x 36        None

                        SIMM CONFIGURATION (CON'T)

     Size          Bank 0        Bank 1         Bank 2         Bank 3

     32MB        (1) 4M x 36  (1) 4M x 36        None           None

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

     33MB        (1) 8M x 36   (1) 256K x        None           None
                                   36

     34MB        (1) 8M x 36   (1) 256K x     (1) 256K x        None
                                   36             36

     34MB        (1) 8M x 36   (1) 512K x        None           None
                                   36

     35MB        (1) 8M x 36   (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

     36MB        (1) 8M x 36   (1) 512K x     (1) 512K x        None
                                   36             36

     36MB        (1) 8M x 36  (1) 1M x 36        None           None

     38MB        (1) 8M x 36   (1) 512K x     (1) 512K x    (1) 512K x 36
                                   36             36

     40MB        (1) 8M x 36  (1) 1M x 36    (1) 1M x 36        None

     40MB        (1) 8M x 36  (1) 2M x 36        None           None

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

     44MB        (1) 8M x 36  (1) 1M x 36    (1) 1M x 36     (1) 1M x 36

     48MB        (1) 8M x 36  (1) 2M x 36    (1) 2M x 36        None

     48MB        (1) 8M x 36  (1) 4M x 36        None           None

     48MB        (1) 4M x 36  (1) 4M x 36    (1) 4M x 36        None

     56MB        (1) 8M x 36  (1) 2M x 36    (1) 2M x 36     (1) 2M x 36

     64MB        (1) 8M x 36  (1) 4M x 36    (1) 4M x 36        None

     64MB        (1) 8M x 36  (1) 8M x 36        None           None

     64MB        (1) 4M x 36  (1) 4M x 36    (1) 4M x 36     (1) 4M x 36

     80MB        (1) 8M x 36  (1) 4M x 36    (1) 4M x 36     (1) 4M x 36

     96MB        (1) 8M x 36  (1) 8M x 36    (1) 8M x 36        None

     100MB       (1) 8M x 36  (1) 8M x 36    (1) 8M x 36     (1) 1M x 36

     104MB       (1) 8M x 36  (1) 8M x 36    (1) 8M x 36     (1) 2M x 36

     112MB       (1) 8M x 36  (1) 8M x 36    (1) 8M x 36     (1) 4M x 36

     128MB       (1) 8M x 36  (1) 8M x 36    (1) 8M x 36     (1) 8M x 36

                            CACHE CONFIGURATION

       Size             Bank 0            Bank 1               TAG

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

     256KB (A)        (4) 64K x 8          None            (1) 32K x 8

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

     512KB (A)       (4) 128K x 8          None            (1) 32K x 8

     512KB (B)        (4) 64K x 8       (4) 64K x 8        (1) 32K x 8

        1MB          (4) 128K x 8      (4) 128K x 8     (1) 64K/128K x 8

                        CACHE JUMPER CONFIGURATION

   Size       JP22       JP23      JP24      JP37       JP38       JP39

   128KB      1 & 2     1 & 2      2 & 3     1 & 2     1 & 2      1 & 2

   256KB      1 & 2     2 & 3      1 & 2     1 & 2     1 & 2      2 & 3
    (A)

   256KB      1 & 2     1 & 2      1 & 2     1 & 2     1 & 2      2 & 3
    (B)

   512KB      2 & 3     1 & 2      1 & 2     1 & 2     2 & 3      2 & 3
    (A)

   512KB      1 & 2     1 & 2      1 & 2     1 & 2     2 & 3      2 & 3
    (B)

    1MB       1 & 2     1 & 2      1 & 2     2 & 3     2 & 3      2 & 3

  Note: Pins designated should be in the closed position.

                            CPU SPEED SELECTION

      Speed              JP18               JP19               JP21

      25MHz            Pins 1 & 2        Pins 2 & 3         Pins 2 & 3
                        closed             closed             closed

      33MHz            Pins 2 & 3        Pins 2 & 3         Pins 1 & 2
                        closed             closed             closed

      40MHz            Pins 1 & 2        Pins 1 & 2         Pins 2 & 3
                        closed             closed             closed

      50iMHz           Pins 1 & 2        Pins 2 & 3         Pins 2 & 3
                        closed             closed             closed

      50MHz            Pins 2 & 3        Pins 1 & 2         Pins 1 & 2
                        closed             closed             closed

      63iMHz           Pins 1 & 2        Pins 2 & 3         Pins 2 & 3
                        closed             closed             closed

      66iMHz           Pins 2 & 3        Pins 2 & 3         Pins 1 & 2
                        closed             closed             closed

      80iMHz           Pins 1 & 2        Pins 1 & 2         Pins 2 & 3
                        closed             closed             closed

      83iMHz           Pins 2 & 3        Pins 2 & 3         Pins 1 & 2
                        closed             closed             closed

     100iMHz           Pins 2 & 3        Pins 2 & 3         Pins 1 & 2
                        closed             closed             closed

                 CPU TYPE SELECTION (CYRIX)

   Type      JP14      JP26       JP33      JP34      JP35

  486DX      1 & 2     1 & 2      Open     1 & 2     1 & 2

  486DX2     1 & 2     1 & 2      Open     1 & 2     1 & 2

  Note: Pins designated should be in the closed position.

                     CPU TYPE SELECTION (CYRIX, CON'T)

   Type       JP36     JP42        JRN1           JRN2           JRN3

   486DX     1 & 2     Open         Not            Not        Installed
                                installed      installed

  486DX2     1 & 2     Open         Not            Not        Installed
                                installed      installed

  Note: Pins designated should be in the closed position.

             CPU TYPE SELECTION (SGS/THOMPSON)

   Type      JP14      JP26       JP33      JP34      JP35

  486DX      1 & 2     1 & 2      Open     1 & 2     1 & 2

  486DX2     1 & 2     1 & 2      Open     1 & 2     1 & 2

  Note: Pins designated should be in the closed position.

                 CPU TYPE SELECTION (SGS/THOMPSON, CON'T)

   Type       JP36     JP42        JRN1           JRN2           JRN3

   486DX     1 & 2     Open         Not            Not        Installed
                                installed      installed

  486DX2     1 & 2     Open         Not            Not        Installed
                                installed      installed

  Note: Pins designated should be in the closed position.

                  CPU TYPE SELECTION (UMC)

   Type      JP14      JP26       JP33      JP34      JP35

   U5S       1 & 2     Open       Open     2 & 3      Open

  U5SLV      1 & 2     Open       Open     2 & 3      Open

   U5SD      1 & 2     Open       Open     1 & 2     1 & 2

  Note: Pins designated should be in the closed position.

                      CPU TYPE SELECTION (UMC, CON'T)

   Type      JP36     JP42         JRN1          JRN2           JRN3

   U5S      2 & 3     Open          Not        Installed         Not
                                installed                     installed

  U5SLV     2 & 3     Open          Not        Installed         Not
                                installed                     installed

   U5SD     1 & 2     Open          Not        Installed         Not
                                installed                     installed

  Note: Pins designated should be in the closed position.

                         CPU TYPE SELECTION (AMD)

     Type          JP14       JP26        JP33        JP34        JP35

     486DX2       1 & 2      2 & 3       Closed       1 & 2       1 & 2
    (NV8T)

     486DX2       1 & 2      2 & 3        Open        1 & 2       1 & 2
    (SV8B)

    486DX4        2 & 3      2 & 3        Open        1 & 2       1 & 2

  Note: Pins designated should be in the closed position.

                      CPU TYPE SELECTION (AMD, CON'T)

    Type      JP36      JP42        JRN1          JRN2           JRN3

   486DX2     1 & 2     Open     Installed         Not            Not
   (NV8T)                                      installed      installed

   486DX2     1 & 2    Closed    Installed         Not            Not
   (SV8B)                                      installed      installed

   486DX4     1 & 2     Open     Installed         Not            Not
                                               installed      installed

  Note: Pins designated should be in the closed position.

                        CPU TYPE SELECTION (INTEL)

     Type         JP14        JP26        JP33        JP34        JP35

   80486WB       2 & 3       2 & 3        Open        1 & 2       1 & 2

   80486SX       1 & 2        Open        Open        2 & 3       Open

   80486DX       1 & 2        Open        Open        1 & 2       1 & 2

   80486DX2      1 & 2        Open        Open        1 & 2       1 & 2

   80486DX4      1 & 2       2 & 3        Open        1 & 2       1 & 2

  486DX4 ODP     1 & 2       2 & 3        Open        1 & 2       2 & 3

     P24T        1 & 2       2 & 3        Open        1 & 2       2 & 3

  Note: Pins designated should be in the closed position.

                     CPU TYPE SELECTION (INTEL, CON'T)

    Type       JP36     JP42       JRN1           JRN2           JRN3

   80486WB     1 & 2    Open     Installed         Not            Not
                                               installed      installed

   80486SX     2 & 3    Open     Installed         Not            Not
                                               installed      installed

   80486DX     1 & 2    Open     Installed         Not            Not
                                               installed      installed

  80486DX2     1 & 2    Open     Installed         Not            Not
                                               installed      installed

  80486DX4     1 & 2    Open     Installed         Not            Not
                                               installed      installed

  486DX4 ODP   1 & 2    Open     Installed         Not            Not
                                               installed      installed

    P24T       1 & 2    Open     Installed         Not            Not
                                               installed      installed

  Note: Pins designated should be in the closed position.

                           CPU VOLTAGE SELECTION

     Voltage             JP31               JP32               JP41

      3.45v            Pins 2 & 3        Pins 2 & 3         Pins 1 & 2
                        closed             closed             closed

       3.6v            Pins 2 & 3        Pins 2 & 3         Pins 3 & 4
                        closed             closed             closed

        4v             Pins 2 & 3        Pins 2 & 3         Pins 5 & 6
                        closed             closed             closed

        5v             Pins 1 & 2        Pins 1 & 2         Pins 1 & 2
                        closed             closed             closed

                           DMA CHANNEL SELECTION

                Channel                               JP15

                    None                              Open

                    1                      Pins 1 & 3, 2 & 4 closed

                     3                      Pins 3 & 5, 4 & 6 closed

                  PCI CLOCK SPEED SELECTION

        Speed                JP11                JP13

      <= 33MHz         Pins 1 & 2 closed   Pins 1 & 2 closed

       >33 MHz         Pins 2 & 3 closed   Pins 2 & 3 closed

