How do I find out how much power my power supply uses?

I need to upgrade my graphics card to dual wield monitors, but that's not my issue (obviously). I want to know how much power (in watts) my power supply pulls out of the wall socket and how much power each piece of hardware is using. I don't exactly want to overload the power supply or the outlet.

The sticker on the side of my power supply says that at 3.3V or 5V 110W is used. At 25 degrees Celsius it uses 250W and at 50 degrees Celsius 212W. I know that this is much lower than it actually is, and it does say watts next to the numbers, not volts.

I really need an accurate number to measure the power usage of the computer and each piece of hardware. Where can I buy a meter that can tell me that?

 

You will prob want someting like this http://www.newegg.com/Product/Product.aspx?Item=N82E16882715001 or http://www.newegg.com/Product/Product.aspx?Item=N82E16882715005 (Better one with free ship)

I though about buying one myself.

 

what about finding the wattage my supply is rated at?

 

Open your PC and look at the sticker that's on your PSU

 

the sticker is wrong. read the original post

 

Well to answer your question properly, I need to know what the model of your PSU(Power Supply Unit) Is.
I also need to know what video card you plan on getting?

If you need help picking, I can give you suggestions.

Let me know :major

 

I don't think he's looking for a new video card.

If the sticker is wrong on your PSU that's going to be hard to find what it is rated at. Try to Google the model and see what you get.

 

lite on ps-5251-7 is the power supply model i'm using. and yes, i want a video card. but that doesn't matter at this point

 

If I'm reading this right it's a 630 Watt PSU

If you want us to help you find a video card post your full system specs and if your pc is a OEM like HP Dell Gateway etc.

 

630???? i Googled the model and every site that showed up said 250 W

 

My bad I was looking at a wrong link. Does the sticker on your PSU say 250 watts total combined power? I highly doubt that the sticker on your PSU is wrong.

 

yeah, you're right....

my psu sticker is correct. it's just a really bad psu. thanks anyways for the help