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3-4
FSB Ratio (CPU/ AGP):
Two options are available: 3:2 ( 3:1.5 (When item "CPU EXT. CLK (CPU/AGP)" set between 100
MHz to 132 MHz) or 4:2 ( 4:1.5 (When item "CPU EXT. CLK (CPU/AGP)" set between 133 MHz or
higher). This item lets you set the processor Front Side Bus and AGP clock divider ratio. It correlates
with the processor FSB clock you set. You can choose the divider ratio you want. The default setting is
3:2. In this case, the AGP clock will be the processor FSB clock divided by 3 and times 2.
Memory Frequency (CPU/ MEM):
Two options are available: 3:4 ( 1:1 (When item "CPU EXT. CLK (CPU/AGP)" set between 100
MHz to 132 MHz) or 1:1 ( 4:3 (When item "CPU EXT. CLK (CPU/AGP)" set between 133 MHz or
higher). This item lets you set the processor Front Side Bus and memory clock divider ratio. It correlates
with the processor FSB clock you set. You can choose the divider ratio you want. The default setting is
1:1. In this case, the memory clock will be the processor FSB clock divided by 1 and times 1.
The wrong settings of the multiplier and external clock in certain circumstances may cause CPU
damage
The wrong settings of the multiplier and external clock in certain circumstances may cause CPU
damage. Setting the working frequency higher than the specifications of PCI or of processor may
cause abnormal memory module functioning, system hangs, hard disk drive data loss, abnormal
functioning of the VGA card, or abnormal functioning with other add-on cards. Using
non-specification settings for your CPU is not the intention of this explanation, for which should be
used for engineering testing only, not for normal applications.
If you use non-specification settings for normal operation, your system may not be stable, and may
effect system reliability. Also, we do not guarantee the stability and compatibility for settings that are
not within specification, and any damage of any elements on the motherboard or peripherals, is not
our responsibility.
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, change the CPU and then, set up the CPU parameters
through SOFT MENU
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 SOFT
™
MENU
Method 2: Since you have to open the computer case when you change the CPU, it could be a good idea
NV7-133R
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™
II. However, if the new CPU is slower than the old one (and is same brand and
II.
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Warning
Chapter 3
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