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# GIGA-BYTE TECHNOLOGY CO., LTD.
GA-6BXDS (REV. 1.0)
Device Type Mainboard
Processor Pentium II
Processor Speed 233/266/300/333/350/366/400/450MHz
Chip Set Intel 440BX
Video Chip Set None
Maximum Onboard 1GB (SDRAM supported)
Memory
Maximum Video None
Memory
Cache 256/512KB (located on Pentium II CPU)
BIOS Award
Dimensions 305mm x 244mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
green PC connector, IDE interfaces (2), SCSI
interface, Wide Ultra SCSI interfaces (2),
parallel port, PS/2 mouse port, serial ports
(2), IR connector, USB connectors (2), ATX
power connector, AGP slot, SB-link connector,
wake on LAN connector
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| AGP slot | AGP | SCSI interface | CN2 |
|-------------------+----------+------------------+----------|
| ATX power | ATX | Serial port 2 | CN3 |
| connector | | | |
|-------------------+----------+------------------+----------|
| Speaker | C1 | Ultra Wide SCSI | CN4 |
| | | interface | |
|-------------------+----------+------------------+----------|
| Reset switch | C2 | Ultra Wide SCSI | CN5 |
| | | interface | |
|-------------------+----------+------------------+----------|
| Power LED | C3 | Serial port 1 | CN6 |
|-------------------+----------+------------------+----------|
| IDE interface LED | C4 | USB connector 1 | CN7 |
|-------------------+----------+------------------+----------|
| IR connector | C5 | USB connector 2 | CN8 |
|-------------------+----------+------------------+----------|
| Green PC | C6 | PS/2 mouse port | CN9 |
| connector | | | |
|-------------------+----------+------------------+----------|
| Soft off power | C7 | Floppy drive | CN10 |
| supply | | interface | |
|-------------------+----------+------------------+----------|
| Green PC LED | C8 | IDE interface 2 | CN11 |
|-------------------+----------+------------------+----------|
| SB-link connector | C9 | IDE interface 1 | CN12 |
|-------------------+----------+------------------+----------|
| CPU fan power | C10 | Wake on LAN | JP8 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Power fan | C11 | 32-bit PCI slots | PC1 – |
| | | | PC4 |
|-------------------+----------+------------------+----------|
| Parallel port | CN1 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| | ATX power control select soft off | J1 | Open |
|---+-----------------------------------+-------+------------|
| | ATX power control select soft | J1 | Closed |
| | off/full on | | |
|---+-----------------------------------+-------+------------|
| | Keyboard power on enabled | JP1 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Keyboard power on disabled | JP1 | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 64 | None | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 64 | None | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 64 | (1) 1M x 64 | None | None |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 2M x 64 | (1) 1M x 64 | None | None |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x | None |
| | | | 64 | |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 64 | None | None | None |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 2M x 64 | (1) 2M x 64 | None | None |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x | (1) 1M x |
| | | | 64 | 64 |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 4M x 64 | (1) 1M x 64 | None | None |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 4M x 64 | (1) 2M x 64 | None | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|--------+------------+------------+------------+------------|
| 48MB | (1) 2M x | (1) 2M x | (1) 2M x | None |
| | 64 | 64 | 64 | |
|--------+------------+------------+------------+------------|
| 64MB | (1) 2M x | (1) 2M x | (1) 2M x | (1) 2M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 64MB | (1) 8M x | None | None | None |
| | 64 | | | |
|--------+------------+------------+------------+------------|
| 64MB | (1) 4M x | (1) 4M x | None | None |
| | 64 | 64 | | |
|--------+------------+------------+------------+------------|
| 72MB | (1) 8M x | (1) 1M x | None | None |
| | 64 | 64 | | |
|--------+------------+------------+------------+------------|
| 80MB | (1) 8M x | (1) 2M x | None | None |
| | 64 | 64 | | |
|--------+------------+------------+------------+------------|
| 96MB | (1) 8M x | (1) 4M x | None | None |
| | 64 | 64 | | |
|--------+------------+------------+------------+------------|
| 96MB | (1) 4M x | (1) 4M x | (1) 4M x | None |
| | 64 | 64 | 64 | |
|--------+------------+------------+------------+------------|
| 128MB | (1) 16M x | None | None | None |
| | 64 | | | |
|--------+------------+------------+------------+------------|
| 128MB | (1) 8M x | (1) 8M x | None | None |
| | 64 | 64 | | |
|--------+------------+------------+------------+------------|
| 128MB | (1) 4M x | (1) 4M x | (1) 4M x | (1) 4M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 136MB | (1) 16M x | (1) 1M x | None | None |
| | 64 | 64 | | |
|--------+------------+------------+------------+------------|
| 144MB | (1) 16M x | (1) 2M x | None | None |
| | 64 | 64 | | |
|--------+------------+------------+------------+------------|
| 152MB | (1) 16M x | (1) 1M x | (1) 1M x | (1) 1M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 160MB | (1) 16M x | (1) 4M x | None | None |
| | 64 | 64 | | |
|--------+------------+------------+------------+------------|
| 176MB | (1) 16M x | (1) 2M x | (1) 2M x | (1) 2M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 192MB | (1) 16M x | (1) 8M x | None | None |
| | 64 | 64 | | |
|--------+------------+------------+------------+------------|
| 192MB | (1) 8M x | (1) 8M x | (1) 8M x | None |
| | 64 | 64 | 64 | |
|--------+------------+------------+------------+------------|
| 224MB | (1) 16M x | (1) 4M x | (1) 4M x | (1) 4M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 256MB | (1) 32M x | None | None | None |
| | 64 | | | |
|--------+------------+------------+------------+------------|
| 256MB | (1) 16M x | (1) 16M x | None | None |
| | 64 | 64 | | |
|--------+------------+------------+------------+------------|
| 256MB | (1) 8M x | (1) 8M x | (1) 8M x | (1) 8M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 272MB | (1) 16M x | (1) 16M x | (1) 1M x | (1) 1M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 280MB | (1) 32M x | (1) 1M x | (1) 1M x | (1) 1M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 288MB | (1) 16M x | (1) 16M x | (1) 2M x | (1) 2M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 304MB | (1) 32M x | (1) 2M x | (1) 2M x | (1) 2M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 320MB | (1) 16M x | (1) 16M x | (1) 4M x | (1) 4M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 320MB | (1) 16M x | (1) 8M x | (1) 8M x | (1) 8M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 384MB | (1) 16M x | (1) 16M x | (1) 16M x | None |
| | 64 | 64 | 64 | |
|--------+------------+------------+------------+------------|
| 448MB | (1) 32M x | (1) 8M x | (1) 8M x | (1) 8M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 512MB | (1) 32M x | (1) 32M x | None | None |
| | 64 | 64 | | |
|--------+------------+------------+------------+------------|
| 512MB | (1) 16M x | (1) 16M x | (1) 16M x | (1) 16M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 640MB | (1) 32M x | (1) 16M x | (1) 16M x | (1) 16M x |
| | 64 | 64 | 64 | 64 |
|--------+------------+------------+------------+------------|
| 768MB | (1) 32M x | (1) 32M x | (1) 32M x | None |
| | 64 | 64 | 64 | |
|--------+------------+------------+------------+------------|
| 1024MB | (1) 32M x | (1) 32M x | (1) 32M x | (1) 32M x |
| | 64 | 64 | 64 | 64 |
|------------------------------------------------------------|
| Note: Board accepts SDRAM memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: 256KB/512KB cache is located on the Pentium II CPU. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|SW1/1 |SW1/2 |SW1/3 |SW1/4 |
|---------+-----------+----------+------+------+------+------|
| 233MHz | 66MHz | 3.5x | Off | Off | On | On |
|---------+-----------+----------+------+------+------+------|
| 266MHz | 66MHz | 4x | On | On | Off | On |
|---------+-----------+----------+------+------+------+------|
| 300MHz | 66MHz | 4.5x | Off | On | Off | On |
|---------+-----------+----------+------+------+------+------|
| 300MHz | 100MHz | 3x | On | Off | On | On |
|---------+-----------+----------+------+------+------+------|
| 333MHz | 66MHz | 5x | On | Off | Off | On |
|---------+-----------+----------+------+------+------+------|
| 350MHz | 100MHz | 3.5x | Off | Off | On | On |
|---------+-----------+----------+------+------+------+------|
| 366MHz | 66MHz | 5.5x | Off | Off | Off | On |
|---------+-----------+----------+------+------+------+------|
| 400MHz | 100MHz | 4x | On | On | Off | On |
|---------+-----------+----------+------+------+------+------|
| 450MHz | 100MHz | 4.5x | Off | On | Off | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MAINBOARD BUS SPEED SELECTION |
|------------------------------------------------------------|
| Speed | JP6 |
|----------------------------+-------------------------------|
| Auto detect | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 66MHz | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 100MHz | Open |
+------------------------------------------------------------+