How to determind my power usage correctly?

[PixelMover]

I want to buy an APS for the setup as listed in my signature.
Powersupply is an Enermax 431w.
Also, I have an Iiyama VM Pro 501 21" and a Philips Brilliance 21A 21" display, and they need to be powered by the APS also. (both)

so i figure:
Enermax = 431w
Iiyam = 150w
Philips = 170w
Total = 751w

Is it this simple, or is there more to it than just adding thse numbers? I am looking for an APS that'll get me about 5 minutes to save and shutdown everything upon complete power failure.
Also I'd like to hear good/bad experiences from ppl who use them .

Thanks for any input

Chris

[Samzik]

u can mesure ampers and find power bu P=I(ampers)*U(volts) it most simple and most acurate

[PixelMover]

Sure, if you tell me how and with what to measure it :D

[Samzik]

use multimeeter. and volts u know by default its what ur network provides, but im not shure about the spelling and words cos im not english speaking so u have to ask from someone 2 be shure to get power use my formula if u wana me explayning u better contact me samzik@hotmail.com in msn

[YMAN]

Enermax = 431w

Just because you have a 431 watt power supply does not
mean that you are using all 431 watts!!!
That is just the max continuous power off all the lines.

[YMAN]

Originally posted by Samzik
use multimeeter. and volts u know by default its what ur network provides, but im not shure about the spelling and words cos im not english speaking so u have to ask from someone 2 be shure to get power use my formula if u wana me explayning u better contact me samzik@hotmail.com in msn

Amps X Volts = Watts

Find out the amount of amps you are using and multiply it by the
voltage, that will give you the totle watts.

[PixelMover]

Originally posted by YMAN


Amps X Volts = Watts

Find out the amount of amps you are using and multiply it by the
voltage, that will give you the totle watts.

Sounds clear enough to me :)
I'm gonna find someone with a multimeter and take it from there, thanks!

[YMAN]

Originally posted by PixelMover


Sounds clear enough to me :)
I'm gonna find someone with a multimeter and take it from there, thanks!

No problom,
Tell us how it goes! http://www.ytec.d2g.com/emoticons/cool2.gif