8
2-4-3 IO
Voltage
Selection
This motherboard allows modifying of the 3.3V IO Voltage. The following lists all
the devices on the motherboard that use this voltage:
PCI Slots
Memory
Southbridge (to which the IDE and FDD connectors are also connected)
As can be seen, many devices are fed from this 3.3V IO Voltage. Normally setting this
voltage to 3.3V is recommended. But if you ‘overclock’ your system it will become more
stable by increasing the IO voltage.
The PCI Bus is normally supposed to run at 33MHz (the PCI and CPU frequencies can be
set through the
frequency/ voltage control
page in the BIOS setup), if it runs at a higher
frequency and your system is not stable you may try increasing the IO voltage to 3.4V or
3.5V. Note that we do not guarantee proper system functioning when it is not operating
within its specifications.
Refer to the following table for the IO voltage settings:
3.3V
3.4V
3.5V
3.6V
JP3
setting
1 2
4
1 2
4
1 2
4
1 2
4
