TheJaseku

@Boinc #73 of all time and #14 of today : )

Ok B) Thanks a lot

CPU 70-74 Celsius / GPU 69-72 Celsius -> after 8 hours & 100% BOINC (CPU and GPU) I really really don´t want a broken PC in 2-3 years because of 24/7. But when you guys say it´s fine, then it should be that way : )

I am not sure. I let my i7 5820k and GTX960 Windforce 4GB calculate 24/7 at around 72 Celsius (BOINC, yep I am in the LinusTechTips Team : ). And I found this post in an other forum: // As far as I know (if someone has precise data, please report), there are no serious statistics data about modern microchips lifetime estimations as a function of its running temperature. I know of two reasons for this: When we could know data about lifetime estimation of a microchip technology, this is, after years from manufacturing, that technology is... obsolete. Only microchips corporations could be interested in researching to obtain such precise info about their products (or the competitors ones). And they are not willing to share it; even if they do, I wouldn't believe them very much. So, I believe that end-users only have the (often intuitive-only) knowledge of experienced IT specialists. This is the mine: Microcircuitry engineering is something like cooking: it involves a lot of probabilistcs and will often have rather random results. So, you don't know how good a microchip is until you have fabricated it. Even then, deterioration will have too a bit of probabilistic behavior. 40ºC (104ºF) or below is heaven for every microchip. 50ºC (122ºF) is a not bad temperature for any microchip. Microchips starts getting damaged on its lifetime at 60ºC (140ºF). A chip running at 70ºC (158ºF) during 24 hours and 7 days a week, will probably last 2-6 years. A chip running at 80ºC (176ºF) during 24 hours and 7 days a week, will probably last 1-3 years. A chip running at 90ºC (194ºF) during 24 hours and 7 days a week, will probably last 6-20 months. In this matter there is no difference between main computer chips like GPU, CPU, Northbridge, Southbridge... etc. Given a temperature, it is harder for the chip to maintain it at high processor usage than at low processor usage. For example: a CPU that achieves 70ºC (158ºF) during 10 hours on nearly-inactive Windows desktop suffers less than a(nother) CPU that achieves 70ºC (158ºF) during 10 hours of intensive CPU processing (i.e: SuperPI). Some hardware engineers report this could be due to that in the second case the CPU uses most of the microcircuitry, and in the first case only a small part of it. The general rule: microcircuitry is like an ellectrical printed circuit board that has the tracks very close between them (there are often only 4-5 molecules between two tracks), so heating is slowly melting the tracks as time goes by. Keep things as cold as possible. The general rule when reading the manufacturer's data: they want for you not to care about refrigerating anything, because then it will get broken just after the warranty period (sometimes only a few weeks after it; it is incredible, I know). "It is just bussiness", Alcapone dixit. Preventing is important (better than waiting for failures to repair): when things start to fail, it could be due to tracks melting in the microcircuitry, or due to minor tracks dilatations. The second case is a temporal problem. The first one is probably a definitive one. // So that´s a pretty "good?" post. Do you all agree? I would like to have my hardware for at least 5 years... for 100% ... I could reverse my overclock from 3.8GHz back to 3.4 for safety. Or am I wrong in this all and should have no fear with these temps? (~72 Celsius 24/7). Or I could let my overclock stay and let BOINC work at 80%. But this means that it pauses it´s work for 2 seconds out of 10. And I can´t imagine that this is also good for a CPU 24/7, these slight drops in temperature would do harm over a long time. Or not? See I am new to this all but very interested, has anybody a real idea about this all?