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955 w/New CM 212+ - Page 4

post #31 of 34
Quote:
Originally Posted by tele View Post
Whoaaa...is that true? Should I switch my HDD fan off? Is 40*C better than 30*C ?
40c seems a tad better than 30c despite the strange peak after 3 years of use: do it.
Sorry for the offtopic : )
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post #32 of 34
Thread Starter 
Quote:
Originally Posted by tele View Post
I didnt say you lied, not at all. I believe that what youre sayin
You dont need to prove it.

But something is wrong there. Probably the ASUS mobo reads the sensors in a different way than other mobos, I donno. You just said your ambient temp. was 25...27*C. I donno how you measure it, but ok. Look at the program screen. It says the mobo temp. min-max: 21...26*C. That is lower than the ambient. Believe me, it cannot be even close to that. Mobo is a serious heat source, it dissipates about 75W, it cannot get off with cheap 1-2*C difference. I mean: if it would be warmer with few *C than ambient, that still would be false value, obviously.

I think ASUS mobo substracts from temperatures, intentionally, I donno the reason, Im just guessing. Other mobos show much higher (14-17*C more) temperatures. Strange.
I wish I had a way to test the temps, besides the ASUS censors. I see where you are getting the 21*C value now. The computer had just booted when I opened up the Hardware Monitor (starts with windows). Because of this, the ambient temp had not made it up to 24*C yet. The minimums on that screen shot are not correct because of this. Sorry about that confusion.
post #33 of 34
Thread Starter 
Quote:
Originally Posted by spiderbro View Post
40c seems a tad better than 30c despite the strange peak after 3 years of use: do it.
Sorry for the offtopic : )
Off topic is no big deal. So it is better to keep drives at 40*C? That is hard to believe! Wow.
post #34 of 34
In what way is 40C superior to 30C for HDDs? I don't know the source of these graphs, so I can't speak to the validity of them, but looking them over it seems fairly clear that 30C is superior to 40C, although 35 might be the sweet spot.

In the first 3 months if your drive fails, it is unlikely due to a difference of temps, excepting that making your drive too cold might stress weak components. After 3 months the variability between 30 - ?? (> 40C) is very minimal (~1%) up to 3 years, meaning the drives are designed to survive almost any environment right up until their warranty expires. Then at 3 years, when most drive warranties expire, there is a gigantic spike for higher temp drives dying (> 6% difference), and continuing over time higher temp drives continue to die at a significantly increased rate. For a long life span 30C is clearly superior.

EDIT: I will say though that the minimal differences are backed up by the article in question which states:
In the lower and middle temperature ranges, higher tempera-
tures are not associated with higher failure rates. This is
a fairly surprising result, which could indicate that data-
center or server designers have more freedom than pre-
viously thought when setting operating temperatures for
equipment that contains disk drives. We can conclude
that at moderate temperature ranges it is likely that there
are other effects which affect failure rates much more
strongly than temperatures do."


So it doesn't really matter that much.

@OP You can pick up a cheap thermal sensor at a local hardware or Fry's if you're really curious, they're only like $15 or $20 I believe. They're pretty neat actually, just point and click and then read off the temp, if you're really curious about ambients.
Edited by ocpokey - 2/9/11 at 2:17pm
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