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# GIGA-BYTE TECHNOLOGY CO., LTD.
GA-686LX2 (VER. 1.0)
Device Type Mainboard
Processor Pentium II
Processor Speed 200/233/266/300/333/366MHz
Chip Set Intel 440LX
Maximum Onboard 1GB (EDO & SDRAM supported)
Memory
Cache 256/512KB (located on Pentium II CPU)
BIOS Award
Dimensions 305mm x 244mm
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, AGP slot, wake on LAN
connector
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| AGP slot | AGP | IDE interface | J7 |
| | | LED | |
|-------------------+----------+------------------+----------|
| ATX power | ATX | Reset switch | J10 |
| connector | | | |
|-------------------+----------+------------------+----------|
| USB connector 1 | CN1 | Speaker | J11 |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN2 | Serial port 2 | JP2 |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN3 | Serial port 1 | JP3 |
|-------------------+----------+------------------+----------|
| USB connector 2 | CN4 | Soft off power | JP4 |
| | | supply | |
|-------------------+----------+------------------+----------|
| CPU fan power | J1 | Green PC | JP5 |
| | | connector | |
|-------------------+----------+------------------+----------|
| CPU fan power | J2 | Power LED | JP6 |
|-------------------+----------+------------------+----------|
| PS/2 mouse port | J3 | ACPI LED | JP7 |
|-------------------+----------+------------------+----------|
| Floppy drive | J4 | SB-link | JP8 |
| interface | | connector | |
|-------------------+----------+------------------+----------|
| Parallel port | J5 | Wake on LAN | JP9 |
| | | connector | |
|-------------------+----------+------------------+----------|
| IR connector | J6 | 32-bit PCI slots | PC1 - |
| | | | PC5 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|--------------------------------------+-------+-------------|
| | ATX power supply select soft off | J12 | Open |
|---+----------------------------------+-------+-------------|
| | ATX power supply select full on | J12 | Closed |
|---+----------------------------------+-------+-------------|
| ยป | Keyboard power on disabled | JP1 | Pins 2 & 3 |
| | | | closed |
|---+----------------------------------+-------+-------------|
| | Keyboard power on enabled | JP1 | Pins 1 & 2 |
| | | | 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 | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 24MB | (1) 2M x 64 | (1) 1M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 24MB | (1) 1M x 64 | (1) 1M x | (1) 1M x | None |
| | | 64 | 64 | |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 4M x 64 | None | None | None |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 2M x 64 | (1) 2M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 1M x 64 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 4M x 64 | (1) 1M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 4M x 64 | (1) 2M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 2M x 64 | (1) 2M x | (1) 2M x | None |
| | | 64 | 64 | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 2M x 64 | (1) 2M x | (1) 2M x | (1) 2M x |
| | | 64 | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 64 | None | None | None |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 4M x 64 | (1) 4M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 72MB | (1) 8M x 64 | (1) 1M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 8M x 64 | (1) 2M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 8M x 64 | (1) 4M x | None | None |
| | | 64 | | |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 4M x 64 | (1) 4M x | (1) 4M x | None |
| | | 64 | 64 | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 16M x | None | None | None |
| | 64 | | | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 8M x 64 | (1) 8M x | None | None |
| | | 64 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION (CON'T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|---------+--------------+-----------+-----------+-----------|
| 128MB | (1) 4M x 64 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 64 | 64 | 64 |
|---------+--------------+-----------+-----------+-----------|
| 136MB | (1) 16M x 64 | (1) 1M x | None | None |
| | | 64 | | |
|---------+--------------+-----------+-----------+-----------|
| 144MB | (1) 16M x 64 | (1) 2M x | None | None |
| | | 64 | | |
|---------+--------------+-----------+-----------+-----------|
| 176MB | (1) 16M x 64 | (1) 2M x | (1) 2M x | (1) 2M x |
| | | 64 | 64 | 64 |
|---------+--------------+-----------+-----------+-----------|
| 192MB | (1) 16M x 64 | (1) 8M x | None | None |
| | | 64 | | |
|---------+--------------+-----------+-----------+-----------|
| 192MB | (1) 8M x 64 | (1) 8M x | (1) 8M x | None |
| | | 64 | 64 | |
|---------+--------------+-----------+-----------+-----------|
| 256MB | (1) 32M x 64 | None | None | None |
|---------+--------------+-----------+-----------+-----------|
| 256MB | (1) 16M x 64 | (1) 16M x | None | None |
| | | 64 | | |
|---------+--------------+-----------+-----------+-----------|
| 256MB | (1) 8M x 64 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 64 | 64 | 64 |
|---------+--------------+-----------+-----------+-----------|
| 272MB | (1) 16M x 64 | (1) 16M x | (1) 1M x | (1) 1M x |
| | | 64 | 64 | 64 |
|---------+--------------+-----------+-----------+-----------|
| 280MB | (1) 32M x 64 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 64 | 64 | 64 |
|---------+--------------+-----------+-----------+-----------|
| 288MB | (1) 16M x 64 | (1) 16M x | (1) 2M x | (1) 2M x |
| | | 64 | 64 | 64 |
|---------+--------------+-----------+-----------+-----------|
| 320MB | (1) 16M x 64 | (1) 16M x | (1) 4M x | (1) 4M x |
| | | 64 | 64 | 64 |
|---------+--------------+-----------+-----------+-----------|
| 384MB | (1) 16M x 64 | (1) 16M x | (1) 16M x | None |
| | | 64 | 64 | |
|---------+--------------+-----------+-----------+-----------|
| 448MB | (1) 32M x 64 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 64 | 64 | 64 |
|---------+--------------+-----------+-----------+-----------|
| 512MB | (1) 32M x 64 | (1) 32M x | None | None |
| | | 64 | | |
|---------+--------------+-----------+-----------+-----------|
| 512MB | (1) 16M x 64 | (1) 16M x | (1) 16M x | (1) 16M x |
| | | 64 | 64 | 64 |
|---------+--------------+-----------+-----------+-----------|
| 640MB | (1) 32M x 64 | (1) 16M x | (1) 16M x | (1) 16M x |
| | | 64 | 64 | 64 |
|---------+--------------+-----------+-----------+-----------|
| 768MB | (1) 32M x 64 | (1) 32M x | (1) 32M x | None |
| | | 64 | 64 | |
|---------+--------------+-----------+-----------+-----------|
| 1024MB | (1) 32M x 64 | (1) 32M x | (1) 32M x | (1) 32M x |
| | | 64 | 64 | 64 |
|------------------------------------------------------------|
| Note: Board accepts EDO & SDRAM memory. Maximum SDRAM is |
| 512MB. Maximum EDO is 1GB. |
+------------------------------------------------------------+
+-----------------------------------------------------------+
| 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 |
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x | Off | On | Off | Off |
|---------+-----------+----------+------+------+------+------|
| 233MHz | 66MHz | 3.5x | On | On | Off | Off |
|---------+-----------+----------+------+------+------+------|
| 266MHz | 66MHz | 4x | Off | Off | On | Off |
|---------+-----------+----------+------+------+------+------|
| 300MHz | 66MHz | 4.5x | On | Off | On | Off |
|---------+-----------+----------+------+------+------+------|
| 333MHz | 66MHz | 5x | Off | On | On | Off |
|---------+-----------+----------+------+------+------+------|
| 366MHz | 66MHz | 5.5x | On | On | On | Off |
+------------------------------------------------------------+