Overclocking a CPU. What is and how?

[Papewaio]

I understand that. But I also understand that Pentium IV proccesors already have heating problems (They produce too much heat), and with overclocking, and the bad valitation system I have, that would be a K.O.!

You could still train by modding your case to have better air flow (large 120mm fans, openings), if possible see if you can get a better cooler for the chip itself (not always possible/practible).

If you really want to train, buy old second hand machines and cannabilise them. This way at the minimum you will get used to putting RAM in and out (if you are going to snap a stick of RAM make sure it is some cheap stick that you are training with), plugging in HDs and assembling the innards of a machine.

[Xiahou]

Anyone know what the normal/dangerous operating temperatures are for modern processors? I understand it varies from chip to chip. Obviously, if your system locks up, it could be getting too hot- but could it run stably and still be hot enough to significantly impact the lifespan of your comp? I would guess so.

[LeftEyeNine]

65-70C should be a danger-zone for all. I'm not sure about Intels though.

[x-dANGEr]

@Pape: I can assemble a PC.. I'm just not a fan of fans and tubes

[drone]

Anyone know what the normal/dangerous operating temperatures are for modern processors? I understand it varies from chip to chip. Obviously, if your system locks up, it could be getting too hot- but could it run stably and still be hot enough to significantly impact the lifespan of your comp? I would guess so.

You can always check the datasheets for your specific processor.

Intel has them here:
http://www.intel.com/products/processor/index.htm
Select your processor type (say standard Pentium 4 for this example), this will take you to the technical docs for the processors:
http://www.intel.com/design/Pentium4/documentation.htm
Under Datasheets, select the chip package/number/process (say 90nm 570 P4), and from there download the PDF datasheet. The thermal specs are available, looks like the 570 can go all the way to 72C. Smoking!

AMD has the Athlon 64 docs here:
http://www.amd.com/us-en/Processors/...9_7203,00.html
Looks like you want the Power/Thermal specs.

I'm pretty sure these are "theoritical" max temps, you definitely want to be running cooler than specified. Liquid cooling works, if you have the money and inclination. A friend of mine just put together a Koolance system with water blocks, without overclocking and radiator fans at full his CPU temps were under 30C. Plenty of leeway to turn down the fans and up the clocks.