ENPC TECHNOLOGY CORPORATION
EP-PV12 (REV. 1.0)
| Device Type | Mainboard |
| Processor | CX 6X86/AM K5/Pentium/Pentium MMX |
| Processor Speed | 75/90/100/120/133/150/166/180/200MHz |
| Chip Set | Intel 430VX |
| Maximum Onboard Memory | 128MB (EDO supported) |
| Cache | 256/512KB |
| BIOS | Award |
| Dimensions | 220mm x 235mm |
| I/O Options | 16-bit ISA slots (3), 32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, AT keyboard port, serial interfaces (2), IR connectors (2), AT power connector, USB interface |
CONNECTIONS |
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| Purpose | Location |
Purpose | Location |
| AT power connector | AT |
IR connector (rear) | JP4 |
| 16-bit ISA slots | IS1-IS3 | IDE interface LED | JP7 |
| PS/2 mouse interface | J1 | Turbo LED | JP9/Pins 3 & 5 |
| AT keyboard connector | J2 | Green PC connector | JP9/Pins 7 & 9 |
| USB interface | J3 | Reset switch | JP9/Pins 17 & 19 |
| Serial interface 2 | J4 | Power LED & keylock | JP9/Pins 8 & 10 |
| Serial interface 1 | J5 | Speaker | JP9/Pins 14 & 20 |
| Floppy drive interface | J6 | CPU fan power | JP10 |
| Parallel interface | J7 | IR connector (front) | JP11 |
| IDE interface 1 | J8 | 32-bit PCI slots | PC1 - PC4 |
| IDE interface 2 | J9 | ||
SIMM CONFIGURATION |
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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 |
| Note: Board accepts EDO memory. | ||
CPU SPEED SELECTION (CX 6X86) |
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CPU speed |
Clock speed |
Multiplier |
JP2 |
JP3 |
120MHz |
50MHz |
2x |
5 & 6 | 1 & 2, 3 & 4 |
133MHz |
55MHz |
2x |
5 & 6 | Open |
150MHz |
60MHz |
2x |
5 & 6 | 1 & 2 |
166MHz |
66MHz |
2x |
5 & 6 | 3 & 4 |
| Note:
Pins designated should be in the closed position. Note: Location of Pin 1 for JP2 and JP3 is unidentified. |
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CPU SPEED SELECTION (AM K5) |
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CPU speed |
Clock speed |
Multiplier |
JP2 |
JP3 |
| 75MHz | 50MHz | 1.5x | Open | 1 & 2, 3 & 4 |
| 100MHz | 66MHz | 1.5x | Open | 3 & 4 |
120MHz |
60MHz |
1.5x |
Open | 1 & 2 |
133MHz |
66MHz |
1.5x |
Open | 3 & 4 |
150MHz |
60MHz |
2.5x |
3 & 4, 5 & 6 | 1 & 2 |
166MHz |
66MHz |
2.5x |
3 & 4, 5 & 6 | 3 & 4 |
| Note:
Pins designated should be in the closed position. Note: Location of Pin 1 for JP2 and JP3 is unidentified. |
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CPU SPEED SELECTION (PENTIUM) |
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CPU speed |
Clock speed |
Multiplier |
JP2 |
JP3 |
75MHz |
50MHz |
1.5x |
Open | 1 & 2, 3 & 4 |
90MHz |
60MHz |
1.5x |
Open | 1 & 2 |
100MHz |
66MHz |
1.5x |
Open | 3 & 4 |
120MHz |
60MHz |
2x |
5 & 6 | 1 & 2 |
133MHz |
66MHz |
2x |
5 & 6 | 3 & 4 |
150MHz |
60MHz |
2.5x |
3 & 4, 5 & 6 | 1 & 2 |
166MHz |
66MHz |
2.5x |
3 & 4, 5 & 6 | 3 & 4 |
180MHz |
60MHz |
3x |
3 & 4 | 1 & 2 |
200MHz |
66MHz |
3x |
3 & 4 | 3 & 4 |
| Note:
Pins designate should be in the closed position. Note: Location of Pin 1 for JP2 and JP3 is unidentified. |
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CPU SPEED SELECTION (PENTIUM MMX) |
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CPU speed |
Clock speed |
Multiplier |
JP2 |
JP3 |
166MHz |
66MHz |
2.5x |
3 & 4, 5 & 6 | 3 & 4 |
200MHz |
66MHz |
3x |
3 & 4 | 3 & 4 |
| Note:
Pins designate should be in the closed position. Note: Location of Pin 1 for JP2 and JP3 is unidentified. |
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CPU VOLTAGE SELECTION |
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Voltage |
JP6/Pins 1 & 2 | JP6/3 & 4 |
| 2.8V | Closed | Closed |
| 2.9V | Closed | Open |
| 3.38V | Open | Closed |
| 3.52V | Open | Open |
| Note: Location of pin 1 is unidentified. | ||