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RotKT
09-23-03, 11:36 AM
i've done the search but couldn't find what im looking for. and also plz forgive me and move it to the right place if i placed this thread at the wrong place.

my questions are:
1. how do we do it? i've read something about OCing both mobo and CPU. OCing mobo by raising the voltage is doable, but how do we do with the CPU
2. does there exist a table that tells us what CPU/mobo when raised to a certain voltage will be operating at a certain speed (ghz)? [Intel CPU to be more specific]

thank you very much

batboy
09-23-03, 12:23 PM
Actually, it's not voltage that overclocks, it's raising the FSB (Front Side Bus) or sometimes called system frequency that increases the CPU clock speed. Voltage is sometimes increased a little just to inprove stability, but voltage by itself will not result in overclocking your computer. In fact, you don't want to raise the voltage unless you absolutely have to because that also raises temps.

All overclocking is done through the motherboard. Look at the CPU, there is no way to set anything on the CPU, it has to be done in the BIOS of the motherboard (or by moving jumpers on the mobo if it's old). Not all motherboards allow overclocking. You need to figure out if your mobo has adjustable FSB. What motherboard, CPU, and RAM do you have?

The two main things that determine the CPU clock speed is the multiplier and the FSB. On Intel CPUs the multiplier is "locked" so that only leaves the FSB. For example... my old P-III 700 had a default multiplier of 7X and FSB of 100 MHz (7X100=700). If I raised the FSB up to 133 MHz, then I could overclock it to 933 MHz (7X133=933).