GIGA-BYTE TECHNOLOGY CO., LTD.
GA-686EX2 (REV. 1.0)
|
Device Type |
Mainboard |
|
Processor |
Pentium II |
|
Processor Speed |
200/233/266/300/333/366MHz |
|
Chip Set |
Intel 440EX |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
256MB (EDO & SDRAM supported) |
|
Maximum Video Memory |
None |
|
Cache |
256/512KB (located on Pentium II CPU) |
|
BIOS |
Award |
|
Dimensions |
243mm x 190mm |
|
I/O Options |
32-bit PCI slots (2), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), USB connectors (2), ATX power connector, AGP slot |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
AGP slot |
AGP |
Serial port 1 |
CN2 |
|
ATX power connector |
ATX |
Serial port 2 |
CN3 |
|
Reset switch |
C1 |
USB connector 1 |
CN4 |
|
Speaker |
C2 |
USB connector 2 |
CN5 |
|
IDE interface LED |
C3 |
Floppy drive interface |
CN6 |
|
Soft off power supply |
C4 |
IDE interface 2 |
CN7 |
|
Power LED |
C5 |
IDE interface 1 |
CN8 |
|
CPU fan power |
C6 |
PS/2 mouse port |
J2 |
|
Parallel port |
CN1 |
32-bit PCI slots |
PC1 PC2 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
ATX power control select soft off |
J7 |
Open | |
|
ATX power control select soft off/full on |
J7 |
Closed | |
|
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 |
|
8MB |
(1) 1M x 64 |
None |
|
16MB |
(1) 2M x 64 |
None |
|
16MB |
(1) 1M x 64 |
(1) 1M x 64 |
|
24MB |
(1) 2M x 64 |
(1) 1M x 64 |
|
32MB |
(1) 4M x 64 |
None |
|
32MB |
(1) 2M x 64 |
(1) 2M x 64 |
|
40MB |
(1) 4M x 64 |
(1) 1M x 64 |
|
48MB |
(1) 4M x 64 |
(1) 2M x 64 |
|
64MB |
(1) 8M x 64 |
None |
|
64MB |
(1) 4M x 64 |
(1) 4M x 64 |
|
72MB |
(1) 8M x 64 |
(1) 1M x 64 |
|
80MB |
(1) 8M x 64 |
(1) 2M x 64 |
|
96MB |
(1) 8M x 64 |
(1) 4M x 64 |
|
128MB |
(1) 16M x 64 |
None |
|
128MB |
(1) 8M x 64 |
(1) 8M x 64 |
|
DIMM CONFIGURATION (CONT) | ||
|
Size |
Bank 0 |
Bank 1 |
|
136MB |
(1) 16M x 64 |
(1) 1M x 64 |
|
144MB |
(1) 16M x 64 |
(1) 2M x 64 |
|
160MB |
(1) 16M x 64 |
(1) 4M x 64 |
|
192MB |
(1) 16M x 64 |
(1) 8M x 64 |
|
256MB |
(1) 16M x 64 |
(1) 16M x 64 |
|
Note: Board accepts EDO & SDRAM memory. | ||
|
CACHE CONFIGURATION |
|
Note: 256KB/512KB cache is located on the Pentium II CPU. |
|
CPU SPEED SELECTION | |||||
|
CPU speed |
Clock speed |
Multiplier |
JP2 |
JP3 |
JP4 |
|
200MHz |
66MHz |
3x |
1 & 2 |
1 & 2 |
1 & 2 |
|
233MHz |
66MHz |
3.5x |
1 & 2 |
1 & 2 |
1 & 2 |
|
266MHz |
66MHz |
4x |
1 & 2 |
1 & 2 |
1 & 2 |
|
300MHz |
66MHz |
4.5x |
1 & 2 |
1 & 2 |
1 & 2 |
|
333MHz |
66MHz |
5x |
1 & 2 |
1 & 2 |
1 & 2 |
|
366MHz |
66MHz |
5.5x |
1 & 2 |
1 & 2 |
1 & 2 |
|
Note: Pins designated should be in the closed position. | |||||
|
CPU SPEED SELECTION (CONT) | ||||||
|
CPU speed |
Clock speed |
Multiplier |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
|
200MHz |
66MHz |
3x |
On |
Off |
On |
On |
|
233MHz |
66MHz |
3.5x |
Off |
Off |
On |
On |
|
266MHz |
66MHz |
4x |
On |
On |
Off |
On |
|
300MHz |
66MHz |
4.5x |
Off |
On |
Off |
On |
|
333MHz |
66MHz |
5x |
On |
Off |
Off |
On |
|
366MHz |
66MHz |
5.5x |
Off |
Off |
Off |
On |