ANTEC, INC.

MB6823

Processor                   Pentium II
Processor Speed             233/266MHz
Chip Set                    Intel
Video Chip Set              None
Maximum Onboard Memory      1GB (EDO supported)
Maximum Video Memory        None
Cache                       256/512KB (located on Pentium II CPU)
BIOS                        Award
Dimensions                  305mm x 240mm
I/O Options                 32-bit PCI slots (5), floppy drive interface,
                            green PC connector, IDE interfaces (2),
                            parallel port, PS/2 mouse port, serial ports
                            (2), IR connector, USB connectors (2), ATX
                            power connector, CPU Slot 1
NPU Options                 None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  ATX power connector        ATX       Power LED & keylock        J12

  Serial port 2              CN1       IDE interface LED          JP21

  Parallel port              CN2       Green PC connector         JP22

  PS/2 mouse port            CN3       Reset switch               JP24

  Serial port 1              CN4       Chassis fan power          JP25

  IDE interface 1            CN5       IR connector               JP29

  IDE interface 2            CN6       Soft off power supply      JP34

  Floppy drive interface     CN7       Green PC LED               JP36

  USB connector               J6       32-bit PCI slots         PC1 – PC5

  USB connector               J7       CPU Slot 1                 SL1

  Speaker                    J11

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

      Flash BIOS voltage select 12v           JP15          Pins 1 & 2
                                                              closed

      Flash BIOS voltage select 5v            JP15          Pins 2 & 3
                                                              closed

  »   CMOS memory normal operation            JP42          Pins 1 & 2
                                                              closed

      CMOS memory clear                       JP42          Pins 2 & 3
                                                              closed

                            DRAM CONFIGURATION

     Size          Bank 0         Bank 1         Bank 2         Bank 3

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

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

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

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

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

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

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

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

     48MB        (2) 4M x 36   (2) 2M x 36        None           None

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

     64MB        (2) 4M x 36   (2) 4M x 36        None           None

     64MB        (2) 8M x 36       None           None           None

     96MB        (2) 4M x 36   (2) 4M x 36    (2) 4M x 36        None

     128MB       (2) 4M x 36   (2) 4M x 36    (2) 4M x 36    (2) 4M x 36

     128MB       (2) 8M x 36   (2) 8M x 36        None           None

     128MB       (2) 16M x 36      None           None           None

     192MB       (2) 8M x 36   (2) 8M x 36    (2) 8M x 36        None

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

     256MB       (2) 16M x 36  (2) 16M x 36       None           None

     256MB       (2) 32M x 36      None           None           None

                        DRAM CONFIGURATION (CON’T)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

     384MB       (2) 16M x 36  (2) 16M x 36   (2) 16M x 36       None

     512MB       (2) 16M x 36  (2) 16M x 36   (2) 16M x 36   (2) 16M x 36

     512MB       (2) 32M x 36  (2) 32M x 36       None           None

     768MB       (2) 32M x 36  (2) 32M x 36   (2) 32M x 36       None

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

  Note: Board accepts EDO memory.

                     CACHE CONFIGURATION

  Note: 256KB/512KB cache is located on the Pentium II CPU.

                               CPU SPEED SELECTION

   CPU     Clock   Multiplier    JP4      JP5      JP6      JP7     JP8     JP9
  speed    speed

  233MHz   66MHz      3.5x       Open     Open    Closed   Closed   Open   Closed

  266MHz   66MHz       4x       Closed   Closed    Open    Closed   Open   Closed