6
2-3 Installation Steps
Before using your computer, you must follow the steps as follows:
1. Set Jumpers on the Motherboard
2. Install the CPU
3. Install DRAM Modules
4. Install Expansion card
5. Connect Cables, Wires, and Power Supply
2-3-1 Jumper Settings
CPU Voltage Selection: JP3 (2x5pin Block)
This jumper is used for adjusting CPU working voltage, for this main board design it
can auto detect the single voltage CPU or dual voltage CPU.
The table of JP3 CPU voltage selection {S : short (ON) , O : open (OFF)}
JP3 VID0 VID1 VID2 VID3 VID4
1.8V
O S O S S
2.0V
O S S S
S
2.2V
O S O O O
2.4V O O S O O
2.5V
S O S O O
2.8V O O O S O
2.9V
S O O S O
3.1V
S S O S O
3.2V
O O S S O
3.3V
S O S S O
3.5V
S S S S O
∗
If your CPU Type is not including in above table, please refer to the CPU voltage selection
on below to choose the correct working voltage for your CPU.
CPU Voltage Selection
1.8V
JP3
2.0V
JP3
10
9
2
1
1
2
9
10
2.2V
JP3
10
9
2
1
2.5V
JP3
10
9
2
1
2.8V
JP3
10
9
2
1
2.9V
JP3
3.1V
JP3
10
9
2
1
10
9
2
1
3.2V
JP3
10
9
2
1
3.3V
JP3
10
9
2
1
3.5V
JP3
10
9
2
1
2.4V
JP3
10
9
2
1
CPU Type selection: SW1 &JP2
This mainboard designs SW1 to select the CPU external clock (Host Bus Frequency)
and JP2 to select the CPU Bus Frequency ratio, the external clock frequency
multiplied by Bus frequency ratio is the CPU frequency as the tables below:
§
Table for CPU external frequency / SDRAM Clock setting : SW1
