Layout -
Graphic - 9.00 KB
| JP8 | JP9 | JP11 | FREQ.RATIO | EXT.CLK. | INT.CLK. | CPU SPEED | |
| 1-2 | 3-4 | ||||||
| 1-2 | 1-2 | OFF | OFF | 1.5 | 50 | 75 | Pentium 75 Mhz,AMD 586-p75 |
| 1-2 | 2-3 | OFF | OFF | 1.5 | 60 | 90 | Pentium 90 Mhz,AMD 586-p90/p120 |
| 2-3 | 1-2 | OFF | OFF | 1.5 | 66 | 100 | Pentium 100 Mhz,AMD 586-p100/p133 |
| 1-2 | 1-2 | ON | OFF | 2 | 50 | 100 | Cyrix 6x86-p120 |
| 2-3 | 2-3 | OFF | OFF | 2 | 55 | 110 | Cyrix 6x86-p133 |
| 1-2 | 2-3 | ON | OFF | 2 | 60 | 120 | Pentium 120 Mhz,AMD 586-p150,Cyrix6x86-p150 |
| 2-3 | 1-2 | ON | OFF | 2 | 66 | 133 | Pentium 133 Mhz,AMD 586-p166,Cyrix6x86-p166 |
| 1-2 | 1-2 | ON | ON | 2.5 | 50 | 125 | Intel PODP 125 Mhz |
| 1-2 | 2-3 | ON | ON | 2.5 | 60 | 150 | PENTIUM 150 Mhz |
| 2-3 | 1-2 | ON | ON | 2.5 | 66 | 166 | PENTIUM 166 Mhz |
| 1-2 | 2-3 | OFF | ON | 3 | 60 | 180 | PENTIUM 180 Mhz |
| 2-3 | 1-2 | OFF | ON | 3 | 88 | 200 | PENTIUM 200 Mhz |
QUICK REFERENCE FOR JUMPERS &
CONNECTORS
| Jl: Keyboard Connector | |
| Pin No. | Function |
| 1 | Key Clock. |
| 2 | Key Data |
| 3 | NC. |
| 4 | VCC (+5V) |
| 5 | GND |
| J2: PS2/Mouse Connector | |
| Pin No. | Function |
| 1 | VCC |
| 2 | GND |
| 3 | MS-DATA |
| 4 | MS-CLOCK |
| J4: IDE Hard Disk Active LED | |
| Pin No. | Function |
| 1 | LED anode (+). |
| 2 | LED cathode (-) |
| J5: CPU Cooling Fan Power Connector | |
| Pin No. | Function |
| 1 | +12V |
| 2 | GND |
| J6: Speaker Connector | |
| Pin No. | Function |
| 1 | vcc |
| 2 | NC |
| 3 | NC |
| 4 | Data |
| J7: Power LED and Key-Lock Connector | |
| Pin No. | Function |
| 1 | LED anode (+). |
| 2 | Nc. |
| 3 | LED cathode |
| 4 | Key lock. |
| 5 | GND. |
| J8: Green Function Switch | |
| Pin No. | Function |
| Close | For system entering Green mode ( Suspend mode). |
| Open | Normal operation. |
| J9: Green Function LED | |
| Pin No. | Function |
| 1 | LED anode (+). |
| 2 | LED cathode |
| J10: Reset Switch | |
| Open | For normal operation. |
| Close | For hardware reset system. |
| J11: Turbo Switch | |
| Pin No. | Function |
| Close | For low speed (Non-cache). |
| Open | For highspeed. |
| J12: Turbo LED Connector | |
| Pin No. | Function |
| 1 | LED anode (+). |
| 2 | LED cathode |
| JP6,7: CPU Power Select Jumper | |
| Pin No. | Function |
| Close Pin 1-2 | For single 3.3V processor. |
| close Pin 2-3 | For single 2.8V 1 3.3V processor (Ex. P55C). |
| JP8,9: System Speed Selection | ||
| JP8 | JP9 | Function |
| 1-2 | 1-2 | For 50 MHz system speed ( CPU 75, 1OO(x2), PODP 125 MHz ). |
| 1-2 | 2-3 | For 60 MHz system speed ( CPU 90, 120, 150, 180 MHz ). |
| 2-3 | 1-2 | For 66 MHz system speed(CPU100,133,166,200MHz). |
| 2-3 | 2-3 | For 55 MHz system speed (CPU 1 1 0 MHz). |
| JP11: CPU INT./ EXT. FREQ. RATIO | ||
| 1,2 | 3,4 | |
| Open | Open | X 1.5 |
| Close | Open | x 2 |
| Close | Close | x 2.5 |
| Open | Close | x 3 |
| CN1-4,6,7 I/O Ports Connector | |
| CN2 | For COM A (Serial portl) |
| CN3 | For COM B (Serial port2) |
| CN4 | For Floppy port |
| CN1 | For LPT port |
| CN6 | For Primary IDE port |
| CN7 | For Secondary IDE port |
| Power Connector | |
| Pin No. | Function |
| 1 | Power Good signal |
| 2-,10,11,12 | VCC (+5V) |
| 3 | +12V |
| 4 | -12V |
| 5,6,7,8 | GND |
| 9 | -5V |
Page updated 98/07/14
