Checking PC power consumption

[abhijith]

I am going to buy a new graphics card so I wanted to check my system power consumption to make sure that my 600VA/360W UPS would work with my system.

My System is:

Phenom X4 9550 @2.2GHZ
M3A78-CM mobo
2GBX1 DDR2 800Mhz Ram
Palit HD4850 dual slot version
250GB Sata HDD
1 DVD writer
2 case fans

I also have connected my BenQ 22" HD monitor to my UPS. Will the UPS work?


Also I have a 450W power supply which came with the PC case. It has 25a on +12V rail. Will it support my 4850? I don't want to OC. What will be my total system power consumption?

 

[Shadow703793]

Most accurate method would be to use a KillaWatt meter.
http://www.newegg.com/Product/Product.aspx?Item=N82E16882715001

You could also try an online PSU calculate to calculate an estimate.

 

[theAnimal]

I would say about 250W at full load.

 

[Translucency]

You should use an Active-PFC power supply when you connecting your computer to a UPS. With 100% PFC (also denoted as having a power factor of 1.00 - the maximum), your 600VA UPS can actually deliver 600W. While with a power factor of only 0.50 (passive PFC) the UPS can only safely deliver 300W.

VA = apparent power
W = real power (VA * power factor)

 

[geofelt]

If you use a apc ups, you can download powerchute personal edition which will manage your ups, and can also tell you how much power you are currently using and how long your backup time is.

 

[Onus]

You have another thread, "4850 Power Supply," in which you've seen concerns that your cheap "with-a-case" PSU may not be up to the job of powering a 4850. If you replace it with a quality PSU, it will indeed be 80+ with Active PFC, so your UPS shouldn't be a problem.