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Poll: Question: if core voltage isn't changed does oc'ing shorten the life of the cpu?

Boonesmi

Boonesmi

Lifer
dont get me wrong, im not to worried about frying my cpu, but im just curious.

for example if i was to take a 600mhz duron (i have previously run it at 950mhz stable with 1.80 core voltage)

but... if i was to take that cpu and leave the core voltage at default and run it at 700mhz (by the way it runs stable at 800mhz with core voltage at default) will this shorten the life of the cpu????

my guess is that it wont, because it will be running just like a factory 700. and its shown to be very capable of it.

but.... im not sure.
like i said before im not worried about this, its just something ive been curious about. people always are saying that if you OC then you will shorten the life of the components.

any opinions and info would be welcomed 🙂
 
Im no expert but my guess is that it will not effect the lifespan of the cpu. Heat is the enemy of a cpu and if you dont raise the voltage you are not dissapating any more heat (I dont think)
 
of course it does...it dissipates more heat...regardless of the voltages...consumes higher wattage at higher clock speeds, even if the vcore stays the same, which is the trend w/ the scaling of retail cpus as well..

it'll shorten the life, but to what?...5 years of 24/7 use...does it really matter?...besides, that can be countered w/ proper cooling...use a good heatsink/fan combo...or better.

though this may not be the case if the core of your cpu is simply a rebaded higher version...i.e., if your duron 600 had a core identical to the 700mhz, but was labeled 600...
 
Heat is your enemy not VCore (within reason, obviously you don't want a 5V Vcore).

If you run your 600Mhz CPU at 700Mhz default VCore as long as the temp doesn't rise you aren't hurting your CPU's life.

If you run at 800Mhz 1.80V if your temp didn't change neither would the CPUs lifespan (of course that's not likely).

Upping your Duron from 600 to 700 even at the same VCore is likely to increase heat output at least a little. So it will probably shorten the life a bit. How significant? I dunno...depends on the temp. If you ran it at my theoretical Vcore of 5V you would probably have enough heat to fry it in well under a second 😉
 
pm had quite a good explaination regarding this issue when someone asked something like this a while back.

If I recall correctly he said it shortened the life, though I dont think it was by all that much when voltage tweaking wasnt involved.

Im pretty sure we can take his word for it. 😉
 
Yeah i asked him. Bascially it still shortens the life but upping the voltage is worse. However if you lower voltage and overclock you will be ok. 🙂
 
You will be ok, whether you overclock or not.....even if your chip's life is only 3years after overclocking WHO CARES!!! In three years a duron 800MHz will be hard to come by, cause its so slow. Maybe you will be able to get a used one here for $25 or so in 3 years. And the story really ain't different for any other processor. Man this topic is brought up every month, or two months...and the same conclusion is always arrived at: Who cares if the life is cut in half or a third or more...the processors value will be rock bottom before it gives its usable life up.

 
Ok everyone, here is how it works.

Power dissipated = fCV^2

If you increase f or V, Power dissipated is going to increase.

Now, temperature works like this. In a simple case, assume that the core and entire heasink assembly are the same temperature and the air around the sink is a different temperature. The heatsink assembly has a rating of x W/C. Hence, the power dissipated by the CPU determines how many degees above ambient that the heasink must be to dissipate the power. Working back to the cpu, there is some power dissipated at the thermal compound area and some temperature increase making the true cpu temperature a bit warmer than the heatsink.

Anyway, any increase in power dissipated (an increase in f or V) results in an increase in the heatsink temperature and in turn results in a cpu temperature increase, if all other factors are held still.

So, increasing f or V or both increases the CPU temp, which decreases the life of the cpu.

Also, this is the same reason that a better heatsink, fan, and case ventilation is more important than using better thermal grease.



jeremy806

 
I agree with everything that nortexoid said. Overclocking will shorten the life regardless of vcore, and no it does not make a difference in the long run. I have been running my celeron 366 at 600 for 2 years now at default voltage and it is stable as hell. If it burns out now and I REALLY want to replace it I can do so for ~$50. Well worth it even if I did shorten the life.

In addition you should be aware of the fact that there are reports of T-Birds actually overclocking better at LOWER voltages. I know, it doesn't make sense, but if you can overclock at a lower-than-default voltage you are definitely sparing your CPU. Something to think about.

PS - go out and buy a Thermoengine...i just got one and it's wicked slick.
 
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