Heat and CPU longevity

[thirteen13rulez]

I was wondering why more heat caused shorter processor life...and yes, i understand that its mostly voltage, but i just want to know about the heat component of proc failure (say longevity difference of a proc at 43 idle and 51 load to a proc at 30 idle 40 load)
links work too! i couldnt find anything on google..........
thanks a lot

13

[935_MobyDick]

Did you spend much time searching on google ? ;)

Well the only reason I could think of is electromigration.

Here is the link I found that will explain it:

http://www.csl.mete.metu.edu.tr/Electromigration/emig.htm

[FastFSB]

Heat can cause accelerated electromigration but i wouldnt worry about it, as it could mean the difference between a cpu working for 12 years or 7 years, and you will probably have a new one long before that becomes an issue. I can't give you any numbers, as it will vary depending on the processor, the process used to make it, voltage, and many other variables.

[JeffW]

Unless you are really cheap...don't worry about the lifespan...is it even tested?

[clash]

Seems a non issue. Like has been said, cpu's outlast their effectiveness anyways. If i kill one ever two years, so what. I will need a new one by then anyways....

[bluce ree]

7 years ago a pentium 2, 300 was probalby top of the line, just walk over to ebay and see how much it would cost to replace....

[mikapc]

Hehe, even though I have a new system now I'm still running since 1999 I think an overclocked celeron a 300 to 450. Sure's it's a little unstable but only when ambient temperature is around 80 f or higher.

[bluce ree]

If CPU longevity is a REAL CONCERN, look at what NASA sends into space, that stuff IS NOT GOING TO BE REPLACED ANYTIME SOON--unless a meteor smashes it.

[a c i d.f l y]

Of course, space temperatures are quite a bit different than they would be in an atmosphere. No worries about condensation, infinite heat dissipation...... hard not to get started on something like this...

-Frank

[L337 M33P]

Originally posted by bluce ree
If CPU longevity is a REAL CONCERN, look at what NASA sends into space, that stuff IS NOT GOING TO BE REPLACED ANYTIME SOON--unless a meteor smashes it.

hehe the space shuttle uses 8086 microprocessors or something - over 20 years old if I'm not mistaken - so electromigration was not a problem for slow chips.

[Lynx]

Originally posted by a c i d.f l y
Of course, space temperatures are quite a bit different than they would be in an atmosphere. No worries about condensation, infinite heat dissipation...... hard not to get started on something like this...

-Frank

Lol incorrect! dissipating heat in space is VERY HARD. This is due to harving to methods of removing heat disapear totaly. As space is virtually a vacume you cannot have any conduction or convecton only radiation. Radiation does not give out a huge amount of heat so things will easily overheat.

[a c i d.f l y]

Originally posted by Lynx


Lol incorrect! dissipating heat in space is VERY HARD. This is due to harving to methods of removing heat disapear totaly. As space is virtually a vacume you cannot have any conduction or convecton only radiation. Radiation does not give out a huge amount of heat so things will easily overheat.

Heh, I pretty much contridicted myself in my statement. I was trying to state that you don't have air or water to move heat away from the source. Yet I stated 'infinite heat dissipation'. In the shade, it is easier to dissipate heat through radiation. But in the sunlight.. different story.

-Frank

[orange400]

Originally posted by clash
Seems a non issue. Like has been said, cpu's outlast their effectiveness anyways. If i kill one ever two years, so what. I will need a new one by then anyways....

exactly

[arabarabian]

It is true that the life will be reduced but unless it is overclocked really high the CPU will last you long enough.

Thank You,
Daniel

[Hellion]

HEY ive got one for you. Save a dollar a day and by the time your processor dies youll have enough to replace it with a better one...so NP...right? Unless of course you do something insanley irresponsible.