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How to check how many wats my psu has without opening case?

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June 11, 2006 10:47:00 PM

^ question , the reason i say without opening case is because i opened it and theres no indication on the psu whatsoever so i need to figure it out another way, Please help me! :) 
June 11, 2006 11:13:55 PM

.......did u try to u kno....remove...the psu?...there is a sticker on every PSU which states the stats for it
June 12, 2006 12:05:01 AM

Quote:
How to check how many wats my psu has without opening case



Is this some sort of zen; contemplate your navel type deal?

good god man. look at the sticker, they all have one.
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June 12, 2006 12:15:55 AM

lol
June 12, 2006 12:28:41 AM

Post everything written on the label. If there's no label, remove the cover and post a picture of the insides.
June 12, 2006 1:03:53 AM

Yeah there's should be a sticker with all the specs posted in it. If not then look at the model number and they usually includes the wattage. For example a model number : PXY450RR notice the 450 that means it's 450 watts. You should be able to see it from the back or by opening the case door. If not also you search it through the manufacturers's specs and confirm it's wattage.
June 12, 2006 1:16:05 AM

is there a way to figure out how many wats your psu is in Windows???

So if some dude jib me and swap the sticker how do you really know how powerful your psu is?
June 12, 2006 1:31:06 AM

i dont think there is
June 12, 2006 1:38:51 AM

I think I will invent (bear with me) a chip that manufacturers can put into their psu's, it will have a usb cable coming out of it. This chip will have voltage leads on each output and each rail and a slick ass little utillity to show what it's doing in windows. And of course tell you the model and serial of the psu.

I could be a millionare!

I don't think it would be easy to pull one of those labels off without scuffing the metal under it, that would take a lot of time.
June 12, 2006 1:40:33 AM

maybe a thousandaire....million is pushin it buddy :)  :D 
June 12, 2006 1:56:26 AM

Yeah, probably right, but I was getting excited!
June 12, 2006 2:39:46 AM

lol, so yah @ author, look at the sticker
a b ) Power supply
June 12, 2006 2:47:42 AM

Quote:
is there a way to figure out how many wats your psu is in Windows???

So if some dude jib me and swap the sticker how do you really know how powerful your psu is?


Then the only way to know is to physically remove the PSU and have it tested.
a b ) Power supply
June 12, 2006 2:51:07 AM

Quote:
^ question , the reason i say without opening case is because i opened it and theres no indication on the psu whatsoever so i need to figure it out another way, Please help me! :) 


Well, if you are unwilling to remove the PSU and check the sticker, perhaps there is one other way.

Place both hands on the PC, close your eyes and concentrate really, really hard. If you are lucky you can perform the Vulcan Mind Meld like Mr. Spock and telepathically find out how many watts the PSU will provide.
June 12, 2006 4:15:15 AM

Quote:
^ question , the reason i say without opening case is because i opened it and theres no indication on the psu whatsoever so i need to figure it out another way, Please help me! :) 


Well, if you are unwilling to remove the PSU and check the sticker, perhaps there is one other way.

Place both hands on the PC, close your eyes and concentrate really, really hard. If you are lucky you can perform the Vulcan Mind Meld like Mr. Spock and telepathically find out how many watts the PSU will provide.


ZOMG, i tried it i was off by .5 watts

i tried that on my old HP Vectra. it was 185.5w, danm off by .5
June 12, 2006 4:32:37 AM

There are 4 screws on modern ATX PSU's that attach it to the case....
remove them and carefully take a look at the top of the PSU, the sticker is prolly there...
June 12, 2006 2:13:38 PM

So currently anybody could jib us on the PSU just by pumping PSUs without stickers!

Thats kinda bad isnt it? And how do we physically test it anyway? Is it an easy simple process?
June 12, 2006 4:56:19 PM

u need a multi meter i think
June 12, 2006 6:29:26 PM

That would be illegal in America, not sure elsewhere, as the sticker has the various certifications required to sell them here. You could get someone in big trouble for ripping UL listings off products and selling them. Kinda like the mattress labels, pull them off before you sell and it's illegal, after and it's ok.
June 12, 2006 6:34:55 PM

Quote:
That would be illegal in America, not sure elsewhere, as the sticker has the various certifications required to sell them here. You could get someone in big trouble for ripping UL listings off products and selling them. Kinda like the mattress labels, pull them off before you sell and it's illegal, after and it's ok.



oh, yah i was gonna say a multimeter is illegal in US.

Yah we have like a whole government dept. that watches that, granted they actually do something...ehh anyways...multimeter will test ur PSU
June 12, 2006 6:42:50 PM

Sorry, forgot to quote ya :) 
June 12, 2006 7:16:31 PM

Quote:
multimeter will test ur PSU


I'm sure anyone with the other equipment and/or test bed required to perform such tests will have a multimeter, but there is no way to test a PSU with a multimeter alone, i.e. there is no max-wattage setting. :?
June 12, 2006 7:23:55 PM

Power Supplies are rated based on a MAXIMUM current / voltage draw.

Manufacturers can quote a number of theoretical max's so as to be able to quote an inflated current figure, not the exact maximum that the PSU can provide. After all, not every component is identical as they come from manufacturing batches.

As the Power supply does not carry any identifying "component" (ie a chip that says "hi motherboard, I'm a 450 Watt PSU", or something equivalent) then there would be absolutely no way to say what the PSU is capable of.

You can try testing it till it fails, OR read the label OR look up your PC model number and see which series PSU is usually supplied in that chasis. Sorry, but what you are asking is physically impossible to measure as they are simply not designed to be measured, other than measuring what you are drawing.

A quick Analogy would be to look at a car which has had its shell taken off and replaced by a box. You can see how fast the box goes by observing it from outside, but as to what it's maximum speed is, you'd need to know what the car underneath the box is!
June 12, 2006 7:36:44 PM

Perhaps you should call the person who sold it to you or assembled it... or maybe check your previous invoices. Odds are if it came with a case its a pretty basic PSU and won't be adequate for high-end components and overclocking.
June 12, 2006 7:49:07 PM

...pull the god damn thing out and read the sticker.
a b ) Power supply
June 12, 2006 8:55:37 PM

Quote:
That would be illegal in America, not sure elsewhere, as the sticker has the various certifications required to sell them here. You could get someone in big trouble for ripping UL listings off products and selling them. Kinda like the mattress labels, pull them off before you sell and it's illegal, after and it's ok.


Yeah, you don't want to rip those lables off, especially the ones on mattress. You could wind up in jail.

Serta counting sheeps go to jail.
June 12, 2006 8:56:00 PM

Attach a variable load to it, and keep winding the resistance up until the PSU starts smoking.

VOILA - there's your rating. ;) 
June 12, 2006 9:27:50 PM

lol
!