EPOX COMPUTER CO., LTD.

EP-BX3
Device Type Mainboard
Processor Pentium II
Processor Speed 200/233/266/300/333/350/366/400/450/500/550MHz
Chip Set Intel 440BX
Maximum Onboard Memory 768MB (EDO & SDRAM supported)
Cache 256/512KB (located on the Pentium II CPU)
BIOS Award
Dimensions 330mm x 218mm
I/O Options 32-bit PCI slots (5), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connector, USB ports (2), ATX power connector, AGP slot, SB-link connector, Wake-on-LAN connector

CONNECTIONS

Purpose

Location

Purpose

Location

AGP slot AGP PC speaker J2/Pins 4 - 7
ATX power connector ATX Power LED & keylock J2/Pins 9 - 13
PS/2 mouse port CN1 IR connector J3/Pins 1 - 5
USB port 1 CN2 IDE interface LED J3/Pins 7 & 8
USB port 2 CN3 Turbo LED J3/Pins 9 & 10
Parallel port CN4 Power switch J3/Pins 12 & 13
Serial port 1 CN5 CPU fan power J4
Serial port 2 CN6 Power supply fan J5
Floppy drive interface CN7 Chassis fan power J6
IDE interface 1 CN8 Wake-on-LAN connector J7
IDE interface 2 CN9 SB-link connector J8
Reset switch J2/Pins 1 & 2 32-bit PCI slots PC1 - PC5


USER CONFIGURABLE SETTINGS

Function

Label

Position

»

 CMOS memory normal operation JP1 Pins 1 & 2 closed
  CMOS memory clear JP1 Pins 2 & 3 closed
» Factory configured - do not alter JP3/Pins 11 & 12 Unidentified
» Factory configured - do not alter JP3/Pins 19 & 20 Unidentified
» Factory configured - do not alter JP3/Pins 21 & 22 Unidentified
» Factory configured - do not alter JP3/Pins 23 & 24 Unidentified
» Factory configured - do not alter JP3/Pins 25 & 26 Unidentified

»

 Power-on keyboard disabled

JP13

Pins 2 & 3 closed
  Power-on keyboard enabled

JP13

Pins 1 & 2 closed


DIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

8MB

(1) 1M x 64

None

None

16MB

(1) 1M x 64

(1) 1M x 64

None

16MB

(1) 2M x 64

None

None

24MB

(1) 1M x 64

(1) 1M x 64

(1) 1M x 64

32MB

(1) 2M x 64

(1) 2M x 64

None

32MB

(1) 4M x 64

None

None

32MB

(1) 2M x 64

(1) 1M x 64

(1) 1M x 64

48MB

(1) 2M x 64

(1) 2M x 64

(1) 2M x 64

48MB

(1) 4M x 64

(1) 1M x 64

(1) 1M x 64

64MB

(1) 4M x 64

(1) 4M x 64

None

64MB

(1) 8M x 64

None

None

64MB

(1) 4M x 64

(1) 2M x 64

(1) 2M x 64

80MB

(1) 8M x 64

(1) 1M x 64

(1) 1M x 64

96MB

(1) 4M x 64

(1) 4M x 64

(1) 4M x 64

96MB

(1) 8M x 64

(1) 2M x 64

(1) 2M x 64

128MB

(1) 8M x 64

(1) 8M x 64

None

128MB

(1) 16M x 64

None

None

128MB

(1) 8M x 64

(1) 4M x 64

(1) 4M x 64

144MB

(1) 16M x 64

(1) 1M x 64

(1) 1M x 64

160MB

(1) 16M x 64

(1) 2M x 64

(1) 2M x 64

192MB

(1) 8M x 64

(1) 8M x 64

(1) 8M x 64

192MB

(1) 16M x 64

(1) 4M x 64

(1) 4M x 64

256MB

(1) 16M x 64

(1) 16M x 64

None

256MB

(1) 32M x 64

None

None

256MB

(1) 16M x 64

(1) 8M x 64

(1) 8M x 64

272MB

(1) 32M x 64

(1) 1M x 64

(1) 1M x 64

288MB

(1) 32M x 64

(1) 2M x 64

(1) 2M x 64

320MB

(1) 32M x 64

(1) 4M x 64

(1) 4M x 64

384MB

(1) 16M x 64

(1) 16M x 64

(1) 16M x 64

384MB

(1) 32M x 64

(1) 8M x 64

(1) 8M x 64

512MB

(1) 32M x 64

(1) 32M x 64

None

512MB

(1) 32M x 64

(1) 16M x 64

(1) 16M x 64

768MB

(1) 32M x 64

(1) 32M x 64

(1) 32M x 64
Note: Board supports EDO & SDRAM memory.


CACHE CONFIGURATION

Note: 256KB/512KB cache is located on the Pentium II CPUs.


CPU SPEED SELECTION

CPU speed

Clock speed

Multiplier

JP3

200MHz

66MHz

3x

 1 & 2, 15 & 16

233Mhz

66MHz

3.5x

 3 & 4, 15 & 16

266MHz

66MHz

4x

 5 & 6, 15 & 16

300MHz

66MHz

4.5x

 7 & 8, 15 & 16

300MHz

100MHz

3x

 1 & 2, 17 & 18

333MHz

66MHz

5X

 9 & 10, 15 & 16

350MHz

100MHz

3.5x

 3 & 4, 17 & 18

400MHz

100MHz

4x

 5 & 6, 17 & 18

450MHz

100MHz

4.5x

 7 & 8, 17 & 18

500MHz

100MHz

5x

 9 & 10, 17 & 18
Automatic CPU speed selection 13 & 14

Note: Designated pins should be in the closed position