EFA CORPORATION
E6BX-ATX
| Device Type | Mainboard |
| Processor | Pentium II/Celeron |
| Processor Speed | 166/233/266/300/333/350/400/450MHz |
| Chip Set | Intel 440BX |
| Maximum Onboard Memory | 384MB (SDRAM supported) |
| Cache | 0/128/256/512KB (located on the CPU) |
| BIOS | Award |
| Dimensions | 305mm x 180mm |
| I/O Options | 32-bit PCI slots (4), 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 |
CONNECTIONS |
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| Purpose | Location |
Purpose | Location |
| AGP slot | AGP |
IDE interface 2 | CN8 |
| ATX power connector | ATX |
IDE interface 1 | CN9 |
| Power fan power | C1 |
IR connector | IR1 |
| CPU fan power | C2 |
Soft off power supply | J1 |
| Chassis fan power | C3 |
Speaker | J2/pins 1/3/5/7 |
| Parallel port | CN1 |
Power LED & keylock | J2/pins 2/4/6/8/10 |
| Serial port 2 | CN2 |
Turbo LED | J2/pins 11 & 12 |
| Serial port 1 | CN3 |
IDE interface LED | J2/pins 15 & 16 |
| USB connector 1 | CN4 |
Reset switch | J2/pins 17 & 18 |
| USB connector 2 | CN5 |
Green PC LED | J2/pins 19 & 20 |
| PS/2 mouse port | CN6 |
LAN card boot connector | J3 |
| Floppy drive interface | CN7 |
32-bit PCI slots | PC1 – PC4 |
| Note: the location of J1, J3 & IR1 are unidentified. | |||
USER CONFIGURABLE SETTINGS |
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Function |
Label |
Position |
|
| Keyboard power on enabled | JP1 |
Pins 1 & 2 closed |
|
| Keyboard power on disabled | JP1 |
Pins 2 & 3 closed |
|
» |
Factory configured - do not alter | JP2 |
Unidentified |
» |
CMOS memory normal operation | JP3 |
Pins 1 & 2 closed |
| CMOS memory clear | JP3 |
Pins 2 & 3 closed |
|
» |
Factory configured - do not alter | JP5 |
Unidentified |
| Note: The location of the above jumpers is unidentified. | |||
DIMM CONFIGURATION |
|||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
8MB |
(1) 1M x 64 |
None |
None |
16MB |
(1) 2M x 64 |
None |
None |
16MB |
(1) 1M x 64 |
(1) 1M x 64 |
None |
24MB |
(1) 2M x 64 |
(1) 1M x 64 |
None |
24MB |
(1) 1M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
32MB |
(1) 4M x 64 |
None |
None |
32MB |
(1) 2M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
32MB |
(1) 2M x 64 |
(1) 2M x 64 |
None |
40MB |
(1) 4M x 64 |
(1) 1M x 64 |
None |
40MB |
(1) 2M x 64 |
(1) 2M x 64 |
(1) 1M x 64 |
48MB |
(1) 4M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
48MB |
(1) 4M x 64 |
(1) 2M x 64 |
None |
48MB |
(1) 2M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
56MB |
(1) 4M x 64 |
(1) 2M x 64 |
(1) 1M x 64 |
64MB |
(1) 8M x 64 |
None |
None |
64MB |
(1) 4M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
64MB |
(1) 4M x 64 |
(1) 4M x 64 |
None |
72MB |
(1) 8M x 64 |
(1) 1M x 64 |
None |
72MB |
(1) 4M x 64 |
(1) 4M x 64 |
(1) 1M x 64 |
80MB |
(1) 8M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
80MB |
(1) 8M x 64 |
(1) 2M x 64 |
None |
80MB |
(1) 4M x 64 |
(1) 4M x 64 |
(1) 2M x 64 |
88MB |
(1) 8M x 64 |
(1) 2M x 64 |
(1) 1M x 64 |
96MB |
(1) 8M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
96MB |
(1) 8M x 64 |
(1) 4M x 64 |
None |
96MB |
(1) 4M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
104MB |
(1) 8M x 64 |
(1) 4M x 64 |
(1) 1M x 64 |
112MB |
(1) 8M x 64 |
(1) 4M x 64 |
(1) 2M x 64 |
128MB |
(1) 16M x 64 |
None |
None |
128MB |
(1) 8M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
128MB |
(1) 8M x 64 |
(1) 8M x 64 |
None |
136MB |
(1) 16M x 64 |
(1) 1M x 64 |
None |
136MB |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 1M x 64 |
144MB |
(1) 16M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
144MB |
(1) 16M x 64 |
(1) 2M x 64 |
None |
144MB |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 2M x 64 |
152MB |
(1) 16M x 64 |
(1) 2M x 64 |
(1) 1M x 64 |
160MB |
(1) 16M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
160MB |
(1) 16M x 64 |
(1) 4M x 64 |
None |
160MB |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 4M x 64 |
168MB |
(1) 16M x 64 |
(1) 4M x 64 |
(1) 1M x 64 |
176MB |
(1) 16M x 64 |
(1) 4M x 64 |
(1) 2M x 64 |
192MB |
(1) 16M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
192MB |
(1) 16M x 64 |
(1) 8M x 64 |
None |
192MB |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 8M x 64 |
200MB |
(1) 16M x 64 |
(1) 8M x 64 |
(1) 1M x 64 |
208MB |
(1) 16M x 64 |
(1) 8M x 64 |
(1) 2M x 64 |
224MB |
(1) 16M x 64 |
(1) 8M x 64 |
(1) 4M x 64 |
256MB |
(1) 16M x 64 |
(1) 8M x 64 |
(1) 8M x 64 |
384MB |
(1) 16M x 64 |
(1) 16M x 64 |
(1) 16M x 64 |
| Note: Board accepts SDRAM memory. | |||
CACHE CONFIGURATION |
| Note: 256KB/512KB cache is located on the Pentium II CPU. 128KB cache is located on the Celeron 300A & 333 CPU. |
CPU SPEED SELECTION |
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CPU speed |
Clock speed |
Multiplier |
JP7/pins 1 & 2 |
JP7/pins 5 & 6 |
JP7/pins 7 & 8 |
JP7/pins 3 & 4 |
166MHz |
66MHz |
2.5x |
Closed |
Open |
Closed |
Closed |
233MHz |
66MHz |
3.5x |
Closed |
Open |
Closed |
Closed |
266MHz |
66MHz |
4x |
Open |
Closed |
Closed |
Open |
300MHz |
66MHz |
4.5x |
Open |
Open |
Closed |
Open |
333MHz |
66MHz |
5x |
Open |
Closed |
Closed |
Closed |
350MHz |
100MHz |
3.5x |
Closed |
Open |
Closed |
Closed |
400MHz |
100MHz |
4x |
Open |
Closed |
Closed |
Open |
450MHz |
100MHz |
4.5x |
Open |
Open |
Closed |
Closed |