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# ANTEC, INC.
MB6823
Processor Pentium II
Processor Speed 233/266MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 1GB (EDO supported)
Memory
Maximum Video None
Memory
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
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| ATX power | ATX | Power LED & | J12 |
| connector | | keylock | |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN1 | IDE interface | JP21 |
| | | LED | |
|-------------------+----------+------------------+----------|
| Parallel port | CN2 | Green PC | JP22 |
| | | connector | |
|-------------------+----------+------------------+----------|
| PS/2 mouse port | CN3 | Reset switch | JP24 |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN4 | Chassis fan | JP25 |
| | | power | |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN5 | IR connector | JP29 |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN6 | Soft off power | JP34 |
| | | supply | |
|-------------------+----------+------------------+----------|
| Floppy drive | CN7 | Green PC LED | JP36 |
| interface | | | |
|-------------------+----------+------------------+----------|
| 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 | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 16MB | (2) 2M x 36 | None | None | None |
|-------+-------------+------------+------------+------------|
| 24MB | (2) 1M x 36 | (2) 1M x | (2) 1M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 32MB | (2) 1M x 36 | (2) 1M x | (2) 1M x | (2) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 32MB | (2) 2M x 36 | (2) 2M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 32MB | (2) 4M x 36 | None | None | None |
|-------+-------------+------------+------------+------------|
| 48MB | (2) 2M x 36 | (2) 2M x | (2) 2M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 48MB | (2) 4M x 36 | (2) 2M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 64MB | (2) 2M x 36 | (2) 2M x | (2) 2M x | (2) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | (2) 4M x 36 | (2) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 64MB | (2) 8M x 36 | None | None | None |
|-------+-------------+------------+------------+------------|
| 96MB | (2) 4M x 36 | (2) 4M x | (2) 4M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 128MB | (2) 4M x 36 | (2) 4M x | (2) 4M x | (2) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (2) 8M x 36 | (2) 8M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 128MB | (2) 16M x | None | None | None |
| | 36 | | | |
|-------+-------------+------------+------------+------------|
| 192MB | (2) 8M x 36 | (2) 8M x | (2) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 256MB | (2) 8M x 36 | (2) 8M x | (2) 8M x | (2) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 256MB | (2) 16M x | (2) 16M x | None | None |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 256MB | (2) 32M x | None | None | None |
| | 36 | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 384MB | (2) 16M x | (2) 16M x | (2) 16M x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 512MB | (2) 16M x | (2) 16M x | (2) 16M x | (2) 16M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 512MB | (2) 32M x | (2) 32M x | None | None |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 768MB | (2) 32M x | (2) 32M x | (2) 32M x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 1GB | (2) 32M x | (2) 32M x | (2) 32M x | (2) 32M x |
| | 36 | 36 | 36 | 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|
+---------------------------------------------------------------+