On 01/06/15 08:14 PM, David Thornton <[email protected]> wrote: > > > Some bioses (bioii?) will tell you about consumption, if that's any help. >
I'd go with the Italian 'biosi'. > > > > > The software package lm_sensors might be able to help you see what data is > made available but YMMV as there is no widespread "standard" for access to > power consumption data as far as I know. > > Expensive servers have polished aps for acessing that sort of data.... > > ha! I googled "measuring pci card power consumption" and the first hit was > > "How We Measure Graphics Card Power Consumption ..." > http://www.tomshardware.com/reviews/graphics-card-performance-benchmarks,3784-3.html > > > Very sexeh setup. > > David > > > > david > > > > On Tue, Jan 6, 2015 at 2:18 AM, D. Hugh Redelmeier <[email protected]> wrote: > > > | From: Kevin Cozens <[email protected]> > > > > > > > > | Any spec for a video card as to power supply wattage would be a minimum. > > > > > > > > Not in my (limited) experience. I have bought cards that wanted to > > > > specify how big my system's power supply was because the actual > > > > required arithmetic is too hard for customers. They just guessed at > > > > what the rest of my system would require and left a margin for error. > > > > > > > > The real specs are a little tricky in theory (I don't actually know > > > > what things are like now). The power supply supplies various > > > > voltages, each with its own current limit. Each voltage is provided > > > > on one or more "rails", each with its own limit. But sometimes a > > > > maximum draw on one reduces the limit on another rail. > > > > > > > > You need a power supply that has enough oomph on each rail. So you > > > > want a requirement specified for each voltage. > > > > > > > > And generally you don't know how much power the rest of your system > > > > uses in aggregate. > > > > > > > > Usually when you build your own system you buy more power supply > > > > capactiy than you need. It doesn't cost too much more and you don't > > > > really know what's needed. > > > > > > > > I imagine that common garden variety computers from big manufacturers > > > > tend to size their power supplies with smaller margins. > > > > --- > > > > Talk Mailing List > > > > [email protected] > > > > http://gtalug.org/mailman/listinfo/talk > > > > > >
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