Originally Posted by bonami2
The weak point is the capacitor like i always said. They are rated at 105c 5000 hour. My hdd got 40000hour 30k hour from 1 motherboard
You make me laugh your motherboard will probably blow up well before mine.
No. Solid polymer capacitors' lifespan is calculated differently than electrolytic capacitors. This is from Nichicon (one of the highly reputable japanese brands).
Life is x10 for every 20C decreased (with an asterisk, in that, it doesn't account for premature failure during to imperfections during manufacturing).
So let's take this Nichicon at "only" 2000K (it's the capacitor brand and rating found on the Asrock 970 Extreme3 for example).
105C = 2000h
85C = 20.000h = 2.2 years
65C= 200.000h = 22 years
Given that capacitors are surface elements of the motherboard, i don't see how they will arrive even at 65C in ANY type of decently ventilated case. A human being gets 3rd degree burn after 5 seconds at 60C. So if your caps arrive at such temperatures, it's easy to know, because you will burn badly your finger if you touch them. So, for a perfectly manufacture capacitor at "merely" 2000h rating @105C, you can expect 22 years of life.
Manufacturers themselves, leave a margin of error for imperfect manufacturing. Not ALL produced capacitors will be so perfect, but most will. So setting aside casual hardware failure, which can occur in any piece of electronics, even 2000h good quality capacitors, have at their "birth" , an expectancy of 22 years. Of course, since "moar is better", motherboard manufacturers go over the top and put 10K or even 15K capacitors on some motherboard, meaning that you will be probably dead and the capacitor will still be in working order. Of course there is always the matter of quality, in the sense that one's rating may be more attendible than others (better manufacturing process). But still, we 're talking about long life.
The capacitors can still fail prematurely (***** happens), but these are "unexpected" deaths. It's not like in electrolytic era, where be it because of the famous stolen formula, be it for the simple fact that all electrolytics dry out as they are being used, it was a matter of time before you go into trouble.Edited by Undervolter - 10/23/15 at 12:50am