As far as bios OC'ing is concerned, what are the negative affects on your PC components? I can see how voltage modifications can lower/put an end to the life of the CPU. But how can bios OC'ing do this? If you supply the CPU with the same voltage, how can it run out of spec? Also, how does bios OC'ing produce more heat? Where does this energy come from when you supply it with the same voltages?
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The science behind overclocking?
- Thread starter CoW]8(0)
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boardsportsrule
[H]ard|Gawd
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well i can provide you with one answer..the heat one...oc'ing provides more heat beceause you're turning on and off electrical components more and more often(the way a processor works is having a bunch of transistors turned on or off...if you're turning the transistors off quicker and more often the energy created has to go some where...so its turned into heat)...its like a car at 1000 rpm's wont get any harm, its easily run at those rpms all day...but when you constantly redline it and junk you will be into the mechanic way more often, as at 5000rpm's its working more, and harder, and faster.
PS. this is my understanding, it's not the word of an amd engineer, so forgive me if im incorrect
PS. this is my understanding, it's not the word of an amd engineer, so forgive me if im incorrect
mohammedtaha
2[H]4U
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If you overclock the cpu without INCREASING voltages then you will not notice a change in temperature.
If you can run it at a lower voltage like most AMD's then that's even better.
You will only notice an increase in temperature when you increase the CPU/Ram voltage.
If you can run it at a lower voltage like most AMD's then that's even better.
You will only notice an increase in temperature when you increase the CPU/Ram voltage.
boardsportsrule
[H]ard|Gawd
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possibly..i mean instead of lasting 10 years, it may only last 8...but by then it wont matter...i mean cmon, if you have a cpu for more then...a couple years, you probably wont be overclocking(we all have an itch for upgrading :S)
When you overclock without adjusting voltages, all you're essentially doing is increasing the clock speed at which various components are set to run. (Hence the name overCLOCKING) This forces all the transistors in the CPU or motherboard chipsets to turn on and off more rapidly than they normally would. At best, this increases performance because more operations can be done in less time, but causes more heat to be dissipated due to the fact that with each ON/OFF cycle for any given transistor, a small amount of energy is lost as heat. If you increase the speed at which transistors turn on and off, you also increase the amount of heat they generate.
In the worst case, generally, the processor just won't be able to handle the increased clockspeed and it'll cause your OS to crash or just cause the PC to not boot at all. Then you turn down the clocks slightly until it's stable again. This really can't cause permanent damage, as you aren't running the processor out of spec, just feeding it too much information too fast.
As for long-term effects, excess heat can cause an increase in the effects of electromigration, which is a process by which the momentum of electrons travelling in the CPU's transistors can gradually cause them to stretch out and/or break. This could potentially cause your processor to suddenly stop working properly, although I've never experienced this or heard of it happening. The increased heat can cause random restarts and such things, which can usually be avoided using better cooling like watercooling or better heatsinks.
In the worst case, generally, the processor just won't be able to handle the increased clockspeed and it'll cause your OS to crash or just cause the PC to not boot at all. Then you turn down the clocks slightly until it's stable again. This really can't cause permanent damage, as you aren't running the processor out of spec, just feeding it too much information too fast.
As for long-term effects, excess heat can cause an increase in the effects of electromigration, which is a process by which the momentum of electrons travelling in the CPU's transistors can gradually cause them to stretch out and/or break. This could potentially cause your processor to suddenly stop working properly, although I've never experienced this or heard of it happening. The increased heat can cause random restarts and such things, which can usually be avoided using better cooling like watercooling or better heatsinks.