You can set clock and voltage jumpers for different CPUs according to jumper setting identified on the back of the board or in the tables below.
Summary Tables
JP11 | JP12 | JP14 | JP15 | JP16 | CPU VCC |
1-2 | 1-2 | 1-2 | 1-3, 2-4 | 1-3, 2-4 | 3.3V (Default) |
1-2 | 1-2 | 2-3 | 1-3, 2-4 | 1-3, 2-4 | 3.45V |
2-3 | 1-2 | 1-2 | 1-2. 3-4 | 1-2, 3-4 | 3.3V & 2.5V |
2-3 | 2-3 | 1-2 | 1-2, 3-4 | 1-2, 3-4 | 3.3V & 2.7V |
2-3 | 4-5 | 1-2 | 1-2, 3-4 | 1-2, 3-4 | 3.3V & 2.9V |
2-3 | 1-2 | 2-3 | 1-2, 3-4 | 1-2, 3-4 | 3.45V & 2.5V |
2-3 | 2-3 | 2-3 | 1-2, 3-4 | 1-2, 3-4 | 3.45V & 2.7V |
2-3 | 4-5 | 2-3 | 1-2, 3-4 | 1-2, 3-4 | 3.45V & 2.9V |
1-2 | 2.5V |
2-3 | 2.7V |
4-5 | 2.9V |
1-2 | 3.3V |
2-3 | 3.45V |
JP11 | JP15 | JP16 |
2-3 | 1-2. 3-4 | 1-2, 3-4 |
Note: In the dual voltage configuration JP15 and JP16 are not necessary. They can be removed entirely.
JP11 | JP15 | JP16 |
1-2 | 1-3. 2-4 | 1-3, 2-4 |
Orientation:
JP4 | Ext Clock Speed Rev 3.0 |
Ext Clock Speed Rev 3.1 |
1-2, 3-4 | 50Mhz | 50Mhz |
3-4 | 55 Mhz | 66Mhz (Default) |
1-2 | 60Mhz | 60Mhz |
66Mhz (Default) | 55Mhz |
JP13 | Clock Multiplier |
1-2, 3-4 | 2.5X |
3-4 | 3X |
1-2 | 2X |
1.5X (3.5X for 233Mhz) |
For more information on this board, see Jamicon Manuals
As a special side note, I've managed to get AMD K6 processors with 2.2 Vcore to run on this board. See the next page to find out how.