Asus P5K SE - Manual (Page 22)

1-6 Chapter 1: Product Introduction
1.3.4 ASUS Intelligent Overclocking features
AI Booster
The ASUS AI Booster allows you to overclock the CPU speed in Windows
environment without the hassle of booting the BIOS. See page 5-26 for details.
Precision Tweaker
This feature allows you to fine tune the CPU/memory voltage and gradually
increase the memory Front Side Bus (FSB) and PCI Express frequency at 1MHz
increment to achieve maximum system performance. See page 4-17 to 4-19 for
details.
C.P.R. (CPU Parameter Recall)
The C.P.R. feature of the motherboard BIOS allows automatic re-setting to the
BIOS default settings in case the system hangs due to overclocking. When the
system hangs due to overclocking, C.P.R. eliminates the need to open the system
chassis and clear the RTC data. Simply shut down and reboot the system, and the
BIOS automatically restores the CPU default setting for each parameter.