Any apps that tell me how much wattage is being drawn from my PSU?
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Any apps that tell me how much wattage is being drawn from my PSU?
Nope, there are apps like motherboard monitor that monitor voltages but actual power
consumption in Watt's cannot be gained without going down a hardware route
pre the PSU.
Some servers can do that, but yes it involves dedicated hardware within the PSU. Monitoring voltages is probably *more* useful though! Total power can be within limits while still overloading individual voltage lines. MBM is a great little monitoring program that is sadly no longer being worked on :( but it is still up-to-date for now, and free, so grab it while you can.
Apart from dedicated circuitry, the only way to measure that is to use a multimeter and a hacked up kettle plug cable (Run the multimeter, set to read AC amps, in series on the live line of the cable). Of course, this is very dangerous (Injury, death, bad hair, etc.), but once you obtain the amps value, just use the power equation to calculate watts. Google or some clever person here would have to tell you what the equation is, though, because I've forgotten it. :D
P=IxV where P=Power I=current V=VoltsQuote:
Originally Posted by eldren
But this is only true for a given instant. To work out the average power over a period of time, you need the average of (IxV) which is NOT the same as (average I)x(average V). :crazy:
LOL if i had not know better i'd think you had been spying on me ;)Quote:
Originally Posted by eldren
I did that got a connector block on a lead that I plug my multimeter into,
resolution is around 2.4watts per measured unit at mains voltages.
interesting results obtained and noticable overheads depending on PSU in use
my PCP&C 510 uses 20 odd watts before any computer is even attached.
Ohh, also a PC P&C 510. Because I'm lazy, how many watts does yours draw whilst running your machine? And, for context, a general indication of your specs please. :>Quote:
Originally Posted by PMM
On an unrelated note, what happened to your post count? Thought at first you might be a different PMM until I saw the link to pifast.
Don't post that often here more viewing than anything, my native home is else where
tend to drift here when things are quite there ;)
Not got the PCP&P in use on a PC at the mo, it currently resides in powering a heater
Core for a Test Dies Simulator in the build thx too its chunky 12v rail only got lappy
and couple of shuttles in use at the mo.
But it had powered this.. with ease http://brittech.co.uk/case.htm
spec need updating XPM2500 in there & corsair XMS4000 max Vcore upto 2.45v
But if you want me too hook it up to a shuttle for a reading I could do that
tomorrow ..that's A shuttle with a Vcore mod & Vdimm mod XPM2500 9700Gfx 2*HD + DVD Burner.
Can run that at over 2v on the Core to bump power up.
Any inkling of how much power it used while it was in operation, though? I'd like to have a general indication of how much is spent on the electricity required to run my machine. :>
Don't know TBH my playing with recording power requirements came
after that rig was pulled apart awaiting new goodies.
It was powering alot TBH, The Rig was Phase change Cooling + Water Cooling / numerious fans & Cold Cathode UV Tubes + HD's CD Burner plus
all the Volt mods on earth.
Not really a reflection of a std rig esp since it ran the xpm at 2850mhz +
TBH I cannot see the shuttle being too far off ;)
Woah simple question turned into a kinda physics mod lesson! :) Just wanted to see how much power my shuttle PSU is drawing. 250W, and currently it is:
SB75G2
ATI 9800 Pro
7-in-1 card reader thingie
Plextor DVD
SATA Hard Drive
Some USB devices (mouse, joystick, iPAQ cable)
Was flashing my iPAQ when the computer reset itself.
Also wondered what graphics card I could go up to on it. A 6800GT?
The 9800Pro is meant to have a 300W so i doubt a 6800GT would be very sensible
I would say your shuttle system is using about 150W of power on average, probably more when gaming. If you look at reviews of wattage meters used on PC's I was suprised as to how low the power consumption was with the systems they were testing.
One way of working it out maybe very roughly is to look at the spinny electric meter thing that the electricity man looks at. If you work out the time it takes to make one revolution when the PC is turned on and then turned off you might be able to find the power consumption of your Shuttle. Dunno tho lol
I'm running 3dmark'05 now it cpu @ 1.98v 2356mhz XPM2500 9700gfx 2*200GB HD's + DVD Burner maxing at 0.98A so I make that 235W peak using the shuttle PSU
scary thing is its rated to 200Watts :eek: Idle = 0.81A =194W.
5v= 5.16v / 12v = 11.75v
Going to do a run with the PCP&P...
So whats all this hype then about needing like 550W of power, if actual consumption is pretty low? I'd say the minimum one needs for a system is 350W for the average gamer should suffice!
Man all this amps is amputaing my brain!
PCP&C 510 Idle = 0.88A = 211W maxing 1.06 = 264W
Running Same Spec
5v = 5.16 / 12v = 12.34 that 5v is suspect that motherboard monitor is saying
can't believe its identical.
Quote:
Originally Posted by Flanderz
Because of the draw on different voltage rail's ;)
A power Supply will supply X watts as a combined total of the 3.3v/5v/12v/-5v/-12v etc etc
What a PSU cannot do is supply that all to one Rail so each voltage has a max
rating that's combined in total to make a rating.
Now if a PC consumes alot of power on one rail more than the others you can
in essance be drawing more power than it can supply remembering its limited
by its capacity per voltage rail e.g. 12v line rated to 240watts max 5v rated to 180w.
Another aspect is the watts quoted are the ideal at 25deg you PSU trust me
will not be a 25degs A good example is Qtec 550w its true rating is more like 325w at running temp of 40deg.
If that makes sense?
2450mhz 1.98v its all the girls got, think I've just found the cpu limit of this shuttle motherboard as its stable upto 2450 but throws a benny at anything over and FSB speed is in spec cpu temps in spec unless heat inside is crippling the northbridge
only passive cooled as I nicked fan to go into the A64 Shuttle.
Idle = 0.9a (216W) 3dmark= 1.10A (264W).
So add say extra 70W for a top brand Gfx little extra headroom for clocking
and I say 350-360w is prob max for most systems not using any watercooling.
Does not mean a 410W PSU is suitable though ;) see earlier comments ;)