Henk Stokhorst wrote: > Tijl Kindt wrote: > >> * Does anybody know how much more energy would be consumed by running >> Prime95 10 hours a day and on all workdays on 130 computers*> >> > Depends on, if the systems are on anyway, there will be no noticeable > difference. If they are switched on just to run prime95, whilst they > would otherwise be off, it is simply the Watts written on the back of > the computer times the amount of hours the computer is on.
The extra power is certainly noticeable on its own, but perhaps less noticeable compared to the consumption of the rest of the systems and monitors etc. If we say that a highly active CPU and memory subsystem running prime95 takes an extra 20 watts, then that's an extra 20Wx130 = 2.6kW! This is enough to heat a fair-sized room! To my knowledge the power rating given on the PSU is actually significantly higher than that actually consumed, since this is a maximum. In fact a system power consumption of half what it written on the back is more normal unless there are a lot of internal devices. -- ======= Gareth Randall ======= _________________________________________________________________________ Unsubscribe & list info -- http://www.ndatech.com/mersenne/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
