ENPC TECHNOLOGY CORPORATION
EP-KE21 (REV. 1.0)
| Device Type | Mainboard |
| Processor | Pentium II |
| Processor Speed | 233/266/300/333MHz |
| Chip Set | Intel 440EX |
| Audio Chip Set | Unidentified |
| Maximum Onboard Memory | 256MB (EDO & SDRAM supported) |
| Cache | 256/512KB (located on the Pentium II CPU) |
| BIOS | Award |
| Dimensions | 244mm x 200mm |
| I/O Options | 32-bit PCI slots (3), floppy drive interface, game/MIDI port, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connectors (2), USB ports (2), ATX power connector, AGP slot, line in, line out, microphone in, audio in - CD-ROM |
CONNECTIONS |
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| Purpose | Location |
Purpose | Location |
| AGP slot | AGP |
IDE interface 2 | CN13 |
| ATX power connector | ATX |
Audio in - CD-ROM | CN14 |
| PS/2 mouse port | CN1 | CPU Fan 1 | FAN1 |
| USB port 1 | CN2 | CPU Fan 2 | FAN2 |
| USB port 2 | CN3 | IR connector 1 | IR1 |
| Parallel port | CN4 | IR connector 2 | IR2 |
| Serial port 1 | CN5 | Reset switch | J1/Pins 1 & 3 |
| Serial port 2 | CN6 | Power LED & keylock | J1/Pins 4, 6, 8, 10 & 12 |
| Game/MIDI port | CN7 | Power switch | J1/Pins 9 & 11 |
| Line in | CN8 | Turbo LED | J1/Pins 13 & 15 |
| Line out | CN9 | Speaker | J1/Pins 14, 16, 18 & 20 |
| Microphone in | CN10 | IDE interface LED | J1/Pins 17 & 19 |
| Floppy drive interface | CN11 | 32-bit PCI slots | PC1 - PC3 |
| IDE interface 1 | CN12 | ||
USER CONFIGURABLE SETTINGS |
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Function |
Label |
Position |
|
| » | CMOS memory normal operation | JP3 | Pins 1 & 2 closed |
|
CMOS memory clear | JP3 | Pins 2 & 3 closed |
DIMM CONFIGURATION |
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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. | ||
CACHE CONFIGURATION |
| Note: 256KB/512KB cache is located on the Pentium II CPU. |
EXTERNAL CLOCK FREQUENCY SELECTION |
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Frequency |
FS0 | FS1 | FS2 |
| 66MHz | Open | Open | Closed |
| 75MHz | Open | Closed | Open |
| 83MHz | Closed | Open | Closed |
CPU MULTIPLIER SELECTION |
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Multiplier |
JP2/Pins 1 & 2 | JP2/Pins 3 & 4 | JP2/Pins 5 & 6 | JP2/Pins 7 & 8 |
3.5x |
Closed | Open | Open | Closed |
4x |
Open | Closed | Closed | Closed |
4.5x |
Open | Closed | Open | Closed |
5x |
Open | Open | Closed | Closed |
| 5.5x | Open | Open | Open | Closed |