Abit IT7-MAX2 User Manual page 54

3-4 Chapter 3
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Speed Error Hold:
The default setting is Disabled. If you change the setting to "Enabled" when the CPU speed setting is
wrong, the system will hold.
Normally, we do not recommend that you use the "User Define" option to setup CPU speed and
multiplier factors. This option is for setup of future CPUs whose specifications are still unknown. The
specifications of all present CPUs are included in the default settings. Unless you are very familiar with
all CPU parameters, it is very easy to make mistakes when you define the external clock and the
multiplier factor by yourself.
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 the system. 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.
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. If you change your CPU,
normally you just have to turn off the power supply, change the CPU and then set up the CPU parameters
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through SoftMenu III. However, if the new CPU is slower than the old one (and is the 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 and change the
™
CPU. Then turn the system on again, and set up the CPU parameters through SoftMenu
III.
Method 2: Since you have to open the computer case when you change the CPU, it would be a good idea
to use the JP5 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
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will not read correctly, the parameters will fail and you must enter SoftMenu III again to set up the
parameters all over again.
CPU Power Supply:
This option allows you to switch between CPU default and user-defined voltages. Leave this setting to
default unless the current CPU type and voltage setting cannot be detected or is not correct. The option
"User Define" enables you to select the Core Voltage manually.
CPU Core Voltage:
This item selects the CPU core voltage.
ATTENTION: A wrong voltage setting may cause the system unstable or even damage the CPU. Please
leave it to default settings unless you are fully aware of its consequences.
DRAM Voltage:
This item selects the DRAM voltage.
IT7-MAX2