Abit AB-BH7 User Manual page 38

3-2
CPU Name Is:
This item displays the CPU model name, for example: Intel Pentium (R) 4.
CPU Internal Frequency:
This item displays the processor speed.
CPU Operating Speed:
This item displays the CPU operating speed according to the type and speed of your CPU. You can also
select the [User Define] option to enter the manual option.
User Define:
WARNING: The wrong settings of the multiplier and external clock in certain circumstances may cause
CPU damage. Setting the working frequency higher than the PCI chipset or processor specs, may cause
abnormal memory module functioning, system hangs, hard disk drive data lose, 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. These should be used for engineering testing, not for normal
applications.
There will be no guaranty for the settings beyond specification, any damage of any component on this
motherboard or peripherals result therein is not our responsibility.
Ext. Clock (CPU/AGP/PCI):
After choosing the "CPU Operating Speed" option as "User Define", you can choose the external clock
frequency from 100MHz to 250 MHz.
PCI Bus Frequency:
This item determines the PCI bus frequency.
Multiplier Factor:
This item selects the multiplier factors for your CPU if it is not locked.
DRAM Ratio H/W Strap:
This item sets the external hardware reset strap assigned to MCH (Memory Controller Hub).
To set this option manually:
•
Select [Low] for CPU of 400MHz FSB frequency.
•
Select [High] for CPU of 533MHz FSB frequency.
DRAM Ratio (CPU:DRAM):
This item determines the frequency ratio between CPU and DRAM. The options are: 1:1 and 3:4 (under
Low "DRAM Ratio H/W Strap" setting), or 4:5 and 1:1 (under High "DRAM Ratio H/W Strap" setting).
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 setting unless you are fully aware of its consequences.
BH7
Chapter 3