CHAINTECH 6BDU0, Manual

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Chapter 2
10
Overclocking
Operating a CPU at a higher frequency than it's specification allows is called
overclocking. If the CPU frequency is set at a higher frequency than it's specification
allows, it may or may not run at that freqency, depending on the quality of your CPU
and the extent to which the frequency has been overset. The mainboard manufacturer
highly discourages overclocking as it may result in data loss, CPU burn-out, system
failure, etc.
Many Pentium II processors are frequency locked processors and are not able to perform
overclocking. Regardless of whether the processor is a frequency locked, overclocking
may cause some processors to hang when turning on the system. When the processor
hangs, the screen remains blank and the system does not boot. To solve this problem,
do the following.
1. Turn off the computer and then press the Home key on your keyboard
2. Turn on your computer, wait for five seconds and then release the Home key.
(Pressing the Home key allows the computer to boot at a low system speed.
For example, for 66MHz external clock CPUs, the CPU boot-up speed is
233MHz. For 100MHz external clock CPUs, the CPU boot-up speed is
350MHz.)
3. Enter BIOS and reconfigure your CPU parameters as described in this section.