Is there any benefit in crunching at 65F than at 75F?
8 Dec 2014 14:45:14 UTC
Topic 197857
(moderation:
Is there any benefit in crunching at 65F than at 75F?
In terms of production.
In terms of electric consumption. (at the outlet, ignoring AC)
In terms of equipment longevity.
Thanks
merle
What is freedom of expression? Without the freedom to offend, it ceases to exist.
— Salman Rushdie
Is there any benefit in crunching at 65F than at 75F?
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Statistically, the great majority of the ways chips can fail get steadily more probable the hotter the chip is.
Also, the great majority of speed paths in chips run steadily quicker the cooler the chip is.
The first point means that your system is probably less likely to suffer a permanent hardware failure if you run it a bit cooler, even when both temperatures are well within normal operating range.
The second point means that if you are intentionally using push-to-the-edge overclocking, you may be able to get slightly higher at the lower ambient temperature. Even when you are not, there is always the possibility of rogue slow paths that don't show up in standard testing (yours or the manufacturer's) and only occur very rarely in your system workload, for which the modest speed difference might make the difference between a transient error and none.
Notwithstanding these two potential advantages, both are merely statistical possibilities, and the odds should be pretty good that on any given system it makes no failure difference at all within the operational lifetime of that system.
Disclosure: I spent half a dozen years of my decades in the microprocessor business directly working for the Quality & Reliability section. Also others working in design, testing, and manufacturing data analysis. But all that ended a decade ago.
thanks archae86 That
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thanks archae86
That disclosure helps me too.
merle
What is freedom of expression? Without the freedom to offend, it ceases to exist.
— Salman Rushdie
In my opinion the single best
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In my opinion the single best method to reduce temperature, electricity consumption and improve longevity is to regularly clean the intake air filters, or if you don't have those, the inside of the machine.
A clean computer is a happy computer :)
RE: In my opinion the
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How often do you do that Logforme?
merle
What is freedom of expression? Without the freedom to offend, it ceases to exist.
— Salman Rushdie
RE: How often do you do
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Every time I vacuum the floors .. so not that often :)
It all depends on how clean your floors are, and how near the floor your computer is. I can tell from the sound level if the machine needs a clean. The fans work harder so the noise level goes up.
Most newer home built machines have an intake fan in the front and the power supply unit sucks in air from the bottom. Both of these fans are like mini vacuum cleaners, filling your fan filters with lint. And if you don't have fan filters they happily pack lint around your CPU, GPU, memory and power supply. Mmmm .. insulation for warmth, and possibly fire.
As always, very nice post
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As always, very nice post archae!
I'd only like to add one more point: power consumption also rises with temperature. For regular desktop CPUs a temperature difference of 10 - 30 K would only result in low single digit watts of higher power consumption. More complex chips like GPUs can show power consumption increases in the low double digit watt range.
MrS
Scanning for our furry friends since Jan 2002
RE: RE: How often do you
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I can also say that this is a problem for people with most pets, those that shed, and for some people with oil heat who rarely get their system checked. I have worked on pc's clogged solid with pet hair and soot!
RE: RE: RE: How often
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Also a big problem for people who smoke tobacco. The smoke residue is sticky, and every form of dust sticks to the smoke.