Software for overclocking pc?

Overclocking your CPU is not as easy as you think. There a series of factors which you have to consider:

1. Temperature
CPU's have a certain temperature range which they can operate in, which is usually between 10c and 80c. Overclocking usually means that you're making the transistors flip back and fourth thus increasing the heat output. The temperature output is usually directly proportional to the frequency you overclock your CPU to. To manage the temperatures you can either get a more efficient CPU cooler... which either can be an efficient heatsink/fan combo, water cooler or need be... an evaporation cooler. Your stock cooler will just not handle the extra heat.

2. Core Voltage
As stated above, overclocking involves the transistors flipping back and fourth. Energy (electricity) is required to achieve this, thus if you overclock your CPU by a huge length from it's stock speeds make sure you increase the core voltage. Do these in increments of 0.1V until you get a stable CPU. Note also that increasing the core voltage will increase the heat output.

3. Front Side Bus (FSB) and FSB Multiplier
The front side bus governs the rate at which data flows in and out of your CPU onto the motherboard. However, in BIOS it will display a different FSB to the one stated on the CPU since it's the FSB divided by the number of pipelines. Generally it is the FSB which you increase the frequency of the CPU.

The FSB multiplier is what determines the actual speed of the CPU. Thus the CPU's speed is the FSB, that's divided by the number of pipelines, multiplied by the FSB multiplier. Therefore if I have a Pentium 4 3.0GHz CPU with 800fsb then the pipeline FSB is 200MHz (since it has 4 pipelines) and it's multiplied by 15. More often than not the FSB multiplier is locked, however if it's not locked then use the FSB multiplier to increase the frequency of the CPU.

4. AGP/PCI Frequency
When the FSB get's changed so does the AGP/PCI frequency. Normally the frequency is at 66MHz/33MHz (AGP/PCI). Most new motherboards will allow this setting to be locked in. However, if the motherboard does not allow this to be locked in then choose the frequency that's the closest to the normal ones.

5. RAM (Random Access Memory)
For a stable overclock you'll need to loosen the timings of the RAM. This will allow enough headroom so that the RAM can keep up with the demand of the CPU. The frequency may also be changed if you feel that the RAM is restricting the overclocking of the CPU. How you'll know? Well, when you hit a brick wall for the overclock of your CPU... try changing the settings of the RAM. If you can overclock further than the RAM was restricting the CPU.

As for your question 'What's a good software for overclocking PC?'. None if you're going to overclock the CPU. Generally most of the well known manufactures (ABIT, ASUS, Gigabyte, Foxconn, MSI) will include programs that will allow overclocking the CPU whilst in Windows. However, I find these programs are a POS (look it up yourself) and doesn't factor in most of the stuff I stated above. If you just want a low - moderate overclock then by all means use it... since I think most have a button that says 'Find stable overclock'. But if you want the highest possible overclock then use the good ol' BIOS.

As for overclocking the graphics card. I recommend Coolbits for nVIDIA based graphics cards. This is a registry edit that allows the frequency of the GPU (graphics processing unit) and the VRAM (video random accessing memory) to be changed. For ATi I reckn' ATi Tool will suffice.

For RAM... it's not that hard really. Just change the timings so that they are a little faster and the frequency (if needed). Also increase the voltage slightly (and I mean in small increments of 0.1V or less).

The key to overclocking is to test each setting you change throughly and look for any signs of unstablity like graphical glitches, crashes and/or random freezings. I suggest you get programs such as PCMark, 3DMark, Memtest and CPU Burn-in to test the components you overclock.

One last thing. Most people generally neglect the fact that the Northbridge will increase in temperature when you overclock the CPU and RAM. Therefore if you plan on heavy overclocking... use a 3rd part Northbridge cooler... and if necessary a Southbridge cooler (if you're pedantic enough ^_^' ).

I hope that helps. :D

Software for overclocking pc?

Onimusaru

tiki223

Onimusaru

tiki223

Zangetsu-ssl

Onimusaru

jonsey32

tandkzy

Zangetsu-ssl

TSPhoenix