Introducing the BIOS

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Solution in case of booting problem due to invalid clock setup:

Normally, if the CPU clock setup is wrong, you will not be able to boot. In this case, turn the system off then on again. The CPU will automatically use its standard parameters to boot. You can then enter the BIOS Setup again and set up the CPU clock. If you can’t enter the BIOS setup, you must try turning the system on a few times (3~4 times) or press “INSERT” key when turning on and the system will automatically use its standard parameters to boot. You can then enter BIOS SETUP again and set up the new parameters.

When you change your CPU:

This motherboard has been designed in such a way that you can turn the system on after having inserted a CPU in the socket without having to configure any jumpers or DIP switches. But if you change your CPU, normally you just have to turn off the power supply (mechanical off), change the CPU and then, set up the CPU parameters through SOFT MENU™ III. However, if the new CPU is slower than the old one (and is same brand and type), we offer you two methods to successfully complete the CPU change operation.

Method 1: Setup up the CPU for the lowest speed for its brand. Turn the power supply off (mechanical off) and change the CPU. Then turn the system on again, and set up the CPU parameters through SOFT MENU™ III.

Method 2: Since you have to open the computer case when you change the CPU, it could be a good idea to use the CCMOS jumper to erase the parameters of the original CPU and to enter BIOS Setup to set up CPU parameters again.

Attention

After setting up the parameters and leaving the BIOS SETUP, and having verified that the system can be booted, do not press the Reset button or turn off the power supply. Otherwise the BIOS will not read correctly, the parameters will fail and you must enter SOFT MENU™ III again to set up the parameters all over again.

CPU Power Supply:

This option allows you to switch between Default and User Define voltages.

!CPU Default: The system will detect the CPU type and select the proper voltage automatically. When it is enabled, the option “Vcore Voltage” will show the current voltage setting that is defined by the CPU and this will not be changeable. We recommend using this CPU default setting and not changing it unless the current CPU type and voltage setting can not be detected or is not correct.

!User Define: This option lets the user select the voltage manually. You can change values of the

“Core Voltage”, “I/O Voltage” and “DDR Voltage” option lists by using the arrow up and arrow down keys.

CPU Fast Command Decode:

Three options are available: Normal ( Fast ( Ultra. The default setting is Normal. With this setting, you may select item if you want CPU decode address is faster or normal. We suggest you choose Normal for greatest stability. Should you want increased performance then you can select Fast or Ultra.

User’s Manual