webster wrote:Now you are talking. If you quote test conditions, figures and models of PSU then I would be very appreciative and would probably start believing you I have certainly seen PSU's that have a really lossy system for the +5V standby voltage, the worst I have seen is probably a no-brand 250W PSU I have that runs really hot when on standby.
Your killing me here..
First off the psu calculator that I speak of is not of the led variety so there are no concrete numbers, just stop watch and pencil and paper. (the led version such as from conrad electronics guestimate the power draw from high to low and can be misleading). We compared draw and readings for the same system about 8 to 20 times (the OS/system has a major impact but every time the higher end psu still sucked power after the system was idle)
I actually had my father help me work out the data, this originally came about to try to figure out some compaq proprietary psu's.
He is the one that stated this,
If uneven power is given to these power supplies the power supplies have their own short term power output to deal with that.
Not sure if it was a semi conductor, etc... Basically to say that the large output psu's hold more power.
I take his word as my own and have seen other comments similar to this from several sites, toms hardware guide for one.
Lets say you use an effiecent high end psu.
2 systems that are identical, one has a lower output psu.
After coming out of a high use 'cycle' the higher output psu keeps sucking power so it can feed the system for power fluctations.
Remember that a good psu not only cleanse power given to it it outputs it just as evenly.
No matter how effiecient those psu's lose power do to heat and resistance, this again make the higher output one more prone to suck more power to simply keep up.
Higher wattage alone creates a ton more heat which then cause a loss of effieciency and resistance. (since the higher watt psus hold more power they lose it as well)
Thats probably the best I can do, as I said I hate electronics (since I dont understand how to build a semiconductor) but have investigated power usage personally and have seen input to perpetuate that claim.