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[t_cel_t]

so i got a kill-a-watt and hooked it up to my computer to see how much power it uses.
i have a
125 watt processor
2x 75 watt gpu's
3 hard drives

just the psu and gpus is 275 watts if maxed out
i have the kaw hooked up to my surge protector which has my computer, 2x 19in lcd's, a ps2(off), phone charger(off)

even during a burn in test maxing everything out i cant break 260watts rms total for everything, my power supply is 550 watts

is my power supply too small? or do the manufactures quote the absolute max power the stuff is rated for or what.

porns

[rawr]

That thur wattage rating happens on the dc side of the power supply i'd reckon.  Yessum.

[t_cel_t]

i know that

[t_cel_t]

120v rms x 1.414= 170v peak
2.2A rms x 1.414= 3.1A peak
peak power= 527W thats peak!

thats for everything, comp and 2 monitors. doesnt make sense
my brain is probably too small

[BangBusMaster]

I've got a kill-a-watt and my OC'd quadcore draws 265-270 when loaded.  Your's is normal.

[Joseph Davis]

What draws current is inrush when you turn a motor on.  HDs, CD/DVD drives, fans, etc, that split instant you turn them on they draw a lot of current... relative to what the draw when spooled up to speed, anyway.

[Ntrain2k]

550 W is it's potential.

It's only going to draw what it needs.

[Zarcorp]

550 W is it's potential.

It's only going to draw what it needs.

QFT.

For efficiency you would want an amplifier that can produce around 20% more power than your system can handle, I'm not sure if a power supply exhibits clipping like an amplifier but I believe it's the same principle.

[Jorsher]

Same with computer PSUs.  What they're rated at is their max, not what it will suck down.  Their efficiency is what they'll actually send to your components compared to the amount of power they draw, and that varies by the operating temperature.  My OC'ed quad will draw near 300w at full load (which it stays at a majority of the time, 2.4ghz running @ 3.6ghz), and I have another quad that's not oc'ed and probably sucks down around 150w at load.  One of the best quality PSUs you can buy is Corsair brand.  I forget the name of the company that actually builds the internals, and they are probably rebranded by other high-end companies as well, but for example my Corsair 750w PSU was reviewed, and retained it's 80+ percent efficiency even when they were drawing 900w from the 750w PSU...at operating temperature.  Most efficiency ratings you see will be based on a temp that you won't have ambient unless you have one hell of an AC bill.

[t_cel_t]

i know that it will only pull what it needs but its not pulling even close to what its rated

[Ntrain2k]

550 W is it's potential.

It's only going to draw what it needs.

QFT.

For efficiency you would want an amplifier that can produce around 20% more power than your system can handle, I'm not sure if a power supply exhibits clipping like an amplifier but I believe it's the same principle.

No, you QFT.

A computer power supply is a hell of a lot different then a damn car amp.

Since you obviously don't know WTF your talking about how about drinking a nice glass of shut the fuck up while grown folk are talking.

[Jorsher]

i know that it will only pull what it needs but its not pulling even close to what its rated

It's not far from what the proc/gpus are supposed to consume.  I wouldn't worry about it.  They don't give exact numbers, they give estimates of what it will use.

260w is nice though...just curious, how much was that thing?

I have an xbox 360, 2 x 26" monitor, 17" monitor, one oc'ed quad, 8gb ram, 6 harddrives, radeon 4850, another q6600, 4gb ram, 2 hdd, nvidia 8700gt.  The two PCs stay at full load basically 24x7, and I'm curious what sort of power I'm using.

[t_cel_t]

well, psu says 368 watts total on the 12v rails
proc is a 9850amd black slightly oc'd
and 2 3870 toxic cards
on an msi k9a2 platinum

[Zarcorp]

550 W is it's potential.

It's only going to draw what it needs.

QFT.

For efficiency you would want an amplifier that can produce around 20% more power than your system can handle, I'm not sure if a power supply exhibits clipping like an amplifier but I believe it's the same principle.

No, you QFT.

A computer power supply is a hell of a lot different then a damn car amp.

Since you obviously don't know WTF your talking about how about drinking a nice glass of shut the fuck up while grown folk are talking.

Really?

As far as I know a SMPS still uses transformers with an electronic switch acting as a rectifier, the same as high end non-linear amplifiers made for live sound. They can still experience clipping, the switch registers an overload as a direct short because the motherboard acts like a limiter would on a linear amp.

Just because it's not a standard transformer doesn't mean the signal can't be distorted, I know for a fact that overloading the psu can cause a glitch when writing to a hd because of signal distortion, which really just means jumpy voltage.

Maybe I am wrong but I'd really like you to elaborate a bit señor cockswallow.

[Jorsher]

550 W is it's potential.

It's only going to draw what it needs.

QFT.

For efficiency you would want an amplifier that can produce around 20% more power than your system can handle, I'm not sure if a power supply exhibits clipping like an amplifier but I believe it's the same principle.

No, you QFT.

A computer power supply is a hell of a lot different then a damn car amp.

Since you obviously don't know WTF your talking about how about drinking a nice glass of shut the fuck up while grown folk are talking.

Really?

As far as I know a SMPS still uses transformers with an electronic switch acting as a rectifier, the same as high end non-linear amplifiers made for live sound. They can still experience clipping, the switch registers an overload as a direct short because the motherboard acts like a limiter would on a linear amp.

Just because it's not a standard transformer doesn't mean the signal can't be distorted, I know for a fact that overloading the psu can cause a glitch when writing to a hd because of signal distortion, which really just means jumpy voltage.

Maybe I am wrong but I'd really like you to elaborate a bit señor cockswallow.

Yes, signal quality is important with PSUs as well...

Another reason I chose my PSU...noise quality didn't start to reach "unacceptable" levels until 150w over what it was rated was being drawn.

[rawr]

850w psu ftw

[Zarcorp]

Oh hey look at that.

Thanks Josh.

Sorry I didn't realize that psu's had a noise rating just like amps. 

[Jorsher]

Oh hey look at that.

Thanks Josh.

Sorry I didn't realize that psu's had a noise rating just like amps. 

Dumbass, was agreeing with you 

[Zarcorp]

Oh hey look at that.

Thanks Josh.

Sorry I didn't realize that psu's had a noise rating just like amps. 

Dumbass, was agreeing with you 

I know that was aimed at runNatrainonyourdad2K.

That was an honest thank you. 

[Jorsher]

I rescind the Dumbass

[Zarcorp]

How's your military job or whatever?

[Jorsher]

Sucks, hate it, pays decent, so I stick with it.

Paid for my security clearance which is good to have in this area (missed out on a better paying job because I didn't have it)
College reimbursement, whenever I get off my ass and go back
Reimburses for any technical certifications I get
Insurance costs too much

[Zarcorp]

Go back this fall, do something useful punk.

[Joseph Davis]

FUCK YOU ZARCORP























ok

[Ntrain2k]

Zarcorp,

    My reply was because your load of dung had nothing to do with his question, as well as your QFT lead in.

He was not experiencing "clipping", as clipping is the peaks and troughs of the waves being cut off on an AC signal.

When you are using power off of a DC rail, it does not have a wave form. It's DC. Since it does not have a wave form, there is nothing to "clip".

Some cheap power supplies might have some ripple on the outputs, but they still do not "clip".

If you read below the answer you decided to reply to, Josh agreed with me as well.

You want to know why I was harsh on you?

You were harsh to me.

Quid Pro Quo snookems.

[Zarcorp]

I didn't give you anything, nor was I harsh on you, I said quoted for TRUTH not JUSTICE. Faggot.

 Squid pro my dick.

Transformers still experience "noise" even when passed through a rectifier, it happens in voltage drops/irregularity. I knew that bit, I just really don't know what the standard for computer power supplies is as far as hardware goes.

My load of dung was pertinent to the question because if he gets a fucking psu that can't support his system because it's "cheaper" or some idiot told him that running it at a higher duty load than optimal was okay he's still going to have problems isn't he?

Also notice I never said that it does in fact "clip", I said I wasn't sure if a psu exhibits clipping like an amplifier used in audio; DC is for computer faggotry, analog is where it's at.

[Ntrain2k]

My apologies then Sir.

QFT is also interpreted as quit fucking talking.

Most cheaper power supplies have problems because they do have good amperage on all of the rail voltages. They will have one rail with a high amperage, so they factor that into the total wattage output and give it a good rating, while the other rails do not have the amperage and cause problems.

[Zarcorp]

I hereby refrain from using stupid forum acronyms for sake of clarity.

Faggot.