Abit AX5, Instruction Booklet

Page: 49 / 119

Introduction of BIOS 3-7
¤
When the CPU is dual voltage , two options will be displayed to set up
Vcore and Vio plane voltage
/
Core Plane Voltage:
ä
2.20v
¡G
For AMD K6/PR266 and future CPUs
( TX5 Rev.1.2 or above revision
only ) :
ä
2.90v
¡G
For AMD K6/PR-200 CPU and Cyrix 6x86MX CPU.
ä
2.80v
¡G
For Intel Pentium MMX and C
yrix 6x86L CPU.
ä
2.70v
¡G
For future CPUs.
ä
2.50v
¡G
For future CPUs. (Depend on hardware
revision.)
ä
3.20v
¡G
For AMD K6/PR-233 and future CPUs. (Depend on
hardware revision.)
ä
3.30v
¡G
For Intel MMX CPU.
/
I/O Plane Voltage:
ä
3.52v
¡G
Reserved
ä
3.38v
¡G
For some of the dual voltage CPUs (default) currently
available.
ä
3.30v
¡G
For some of the dual voltage CPUs (default) currently
available.
The CPU voltage must be set according to voltage indications via CPU
Marking given by the manufacturer. Since the CPU voltage will decrease as
technology improves, we have reserved some options according to what we can
forecast from present documentation. We cannot give you detailed information
about the voltage required by each kind of CPU in this chapter. For the correct
values, refer to appendices B, C and D.
¤
Set up the voltage via CPU Marking:
If you consider using the Appendices to set up as too complicated, you
can use the CPU Marking: within the options under
“
CPU Marking
Is,
”
set up via CPU Marking on the CPU.
Notes:
1. If your CPU is a dual voltage one and that the voltage set up is 3.52V,
our mainboard features a hardware protection circuit that will lower
the voltage between 2.8V and 2.9V, which is within the CPU