ENPC TECHNOLOGY CORPORATION

EP-PT11 (REV. 1.5)
Device Type Mainboard
Processor CX 686MX/CX M2/AM K5/AM K6/Pentium/Pentium MMX
Processor Speed 90/100/120/133/150/166/180/200/233MHz
Chip Set Intel 430TX
Maximum Onboard Memory 256MB (EDO & SDRAM supported)
Cache 256/512KB
BIOS AMI/Award
Dimensions 220mm x 250mm
I/O Options 32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel interface, PS/2 mouse interface, serial interfaces (2), IR connectors (2), USB interface, ATX power connector, External battery connector


CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

IR connector (front) J3
Parallel interface CN1 External battery connector J4
Serial interface 2 CN2 CPU fan power J7
Serial interface 1 CN3 IDE interface 1 J9
Speaker J1/Pins 1, 3, 5, 7 IR connector (rear) J10
IDE interface LED J1/Pins 2 & 4 IDE interface 2 J11
Turbo LED J1/Pins 6 & 8 Floppy drive interface J12
Power LED & keylock J1/Pins 9, 11, 13, 15, 17 USB interface J16
Power switch J1/Pins 10 & 12 PS/2 mouse interface J18
Reset switch J1/Pins 18 & 20 32-bit PCI slots

PC1 - PC4


USER CONFIGURABLE SETTINGS

Function

Label

Position

»

CMOS memory normal operation J6 Pins 2 & 3 closed
  CMOS memory clear J6 Pins 1 & 2 closed
» Flash BIOS voltage selection +5V J19 Pins 1 & 2 closed

 

 Flash BIOS voltage selection +12V J19 Pins 2 & 3 closed
» Factory configured - do not alter SW1/4 Off


SIMM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 36

None

16MB

(2) 2M x 36

None

16MB

(2) 1M x 36

(2) 1M x 36

24MB

(2) 2M x 36

(2) 1M x 36

32MB

(2) 4M x 36

None

32MB

(2) 2M x 36

(2) 2M x 36

40MB

(2) 4M x 36

(2) 1M x 36

48MB

(2) 4M x 36

(2) 2M x 36

64MB

(2) 8M x 36

None

64MB

(2) 4M x 36

(2) 4M x 36

72MB

(2) 8M x 36

(2) 1M x 36

80MB

(2) 8M x 36

(2) 2M x 36

96MB

(2) 8M x 36

(2) 4M x 36

128MB

(2) 8M x 36

(2) 8M x 36

128MB

(2) 16M x 36

None

136MB

(2) 16M x 36

(2) 1M x 36

144MB

(2) 16M x 36

(2) 2M x 36

160MB

(2) 16M x 36

(2) 4M x 36

192MB

(2) 16M x 36

(2) 8M x 36

256MB

(2) 16M x 36

(2) 16M x 36

Note:  Board accepts EDO & SDRAM memory.
Note:  If using both SIMM and DIMM memory, only one bank of each may be filled simultaneously.


DIMM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(1) 1M x 64

None

16MB

(1) 1M x 64

(1) 1M x 64

16MB

(1) 2M x 64

None

24MB

(1) 2M x 64

(1) 1M x 64

32MB

(1) 2M x 64

(1) 2M x 64

32MB

(1) 4M x 64

None

40MB

(1) 4M x 64

(1) 1M x 64

48MB

(1) 4M x 64

(1) 2M x 64

64MB

(1) 4M x 64

(1) 4M x 64

64MB

(1) 8M x 64

None

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) 8M x 64

(1) 8M x 64

128MB

(1) 16M x 64

None

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 supports EDO & SDRAM memory.
Note:   If using both SIMM and DIMM memory, only one bank of each may be filled simultaneously.


CLOCK SPEED SELECTION

Speed

 SW1/1 SW1/2 SW1/3
 

55MHz

 On On Off
 

60MHz

 On Off Off
»

66.6MHz

 Off Off Off
 

68.5MHz

 Off Off On
 

75MHz

 Off On Off
 

83.3MHz

 On On On


CPU TYPE SELECTION

Type

 J20
CX 6x86 MX Pins 1 & 2, 3 & 4 closed
AD K5 Pins 1 & 2, 3 & 4 closed
Pentium Pins 1 & 2, 3 & 4 closed
CX M2 Pins 5 & 6, 7 & 8 closed
AM K6 `Pins 5 & 6, 7 & 8 closed
Pentium MMX Pins 5 & 6, 7 & 8 closed


CPU MULTIPLIER SELECTION (CX 6X86)
Setting BF0 BF1 BF2
2x Pins 2 & 3 closed Pins 1 & 2 closed Pins 1 & 2 closed
2x Pins 2 & 3 closed Pins 2 & 3 closed Pins 1 & 2 closed
3x Pins 1 & 2 closed Pins 1 & 2 closed Pins 1 & 2 closed
3x Pins 1 & 2 closed Pins 2 & 3 closed Pins 1 & 2 closed


CPU MULTIPLIER SELECTION (CX M2)
Setting BF0 BF1 BF2
2x Pins 2 & 3 closed Pins 1 & 2 closed Pins 1 & 2 closed
2.5x Pins 2 & 3 closed Pins 2 & 3 closed Pins 1 & 2 closed
3x Pins 1 & 2 closed Pins 2 & 3 closed Pins 1 & 2 closed
3.5x Pins 1 & 2 closed Pins 1 & 2 closed Pins 1 & 2 closed


CPU MULTIPLIER SELECTION (AM K5)

Setting

 BF0 BF1 BF2
1.5x Pins 2 & 3 closed Pins 1 & 2 closed Pins 1 & 2 closed

1.5x

 Pins 1 & 2 closed Pins 1 & 2 closed Pins 1 & 2 closed
1.75x Pins 2 & 3 closed Pins 2 & 3 closed Pins 1 & 2 closed

2x

 Pins 1 & 2 closed Pins 2 & 3 closed Pins 1 & 2 closed


CPU MULTIPLIER SELECTION (AMD K6)

Setting

 BF0 BF1 BF2

2.5x

 Pins 2 & 3 closed Pins 2 & 3 closed Pins 1 & 2 closed

3x

 Pins 1 & 2 closed Pins 2 & 3 closed Pins 1 & 2 closed
3.5x Pins 1 & 2 closed Pins 1 & 2 closed Pins 1 & 2 closed


CPU MULTIPLIER SELECTION (PENTIUM)
Setting BF0 BF1 BF2
1.5x Pins 1 & 2 closed Pins 1 & 2 closed Pins 1 & 2 closed
2x Pins 2 & 3 closed Pins 1 & 2 closed Pins 1 & 2 closed
2.5x Pins 2 & 3 closed Pins 2 & 3 closed Pins 1 & 2 closed
3x Pins 1 & 2 closed Pins 2 & 3 closed Pins 1 & 2 closed


CPU MULTIPLIER SELECTION (PENTIUM MMX)
Setting BF0 BF1 BF2
2x Pins 2 & 3 closed Pins 1 & 2 closed Pins 1 & 2 closed
2.5x Pins 2 & 3 closed Pins 2 & 3 closed Pins 1 & 2 closed
3x Pins 1 & 2 closed Pins 2 & 3 closed Pins 1 & 2 closed
3.5x Pins 1 & 2 closed Pins 1 & 2 closed Pins 1 & 2 closed


CPU VOLTAGE SELECTION

Voltage

 VID0 VID1 VID2 VID3 VID4
1.3V Open Open Open Open Closed
1.4V Open Closed Open Open Closed
1.5V Open Open Closed Open Closed
1.6V Open Closed Closed Open Closed
1.7V Open Open Open Closed Closed
1.8V Open Closed Open Closed Closed
1.9V Open Open Closed Closed Closed
2.0V Open Open Open Open Open
2.1V Closed Open Open Open Open
2.2V Open Closed Open Open Open
2.3V Closed Closed Open Open Open
2.4V Open Open Closed Open Open
2.5V Closed Open Closed Open Open
2.6V Open Closed Closed Open Open
2.7V Closed Closed Closed Open Open
2.8V Open Open Open Closed Open
2.9V Closed Open Open Closed Open
3.0V Open Closed Open Closed Open
3.1V Closed Closed Open Closed Open
3.2V Open Open Closed Closed Open
3.3V Closed Open Closed Closed Open
3.4V Open Closed Closed Closed Open
3.5V Closed Closed Closed Closed Open