Thought my PSU blew, but worked in another wall socket. Am i drawing too much power from 1 socket?

rj2long

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I had my Computer, monitor, and speakers plugged into a surge protector. I just got a new gfx card (gtx 750 ti) today and worked fine unitl i tried playing metro 2033. just as i was about to get to actual gameplay the computer just shut off and wouldn't turn back on.

I tried plugging the tower in to a different socket on the other side of the room and it started up fine, though i have no way of getting the monitor hooked up to see if everything is ok.

so my question is: did i have too many things drawing power from the surge protector that it just shut off or did i just waste my money on a new card?

Specs:(off the top of my head)
athlon II x2 220 dual core (2.8ghz)
4gb ddr3 ram
330W PSU
EVGA gtx 750 ti superclocked

I know the power supply is cutting it close but the gfx card only required a 300w psu.
 
Solution


Hi - Most likely your PSU (list the brand/model please) doesn't have enough power for the system
with a 750ti. Many PSU's (why you need to post brand/model) don't output their adv specs., or
don't have enough of the total power allocated to the +12v rail(s), which is where the CPU,
GPU, HDD, etc draw their current from.

 

danisnotonfire

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In your case with the PC just shutting off, chances are it's that the PSU doesn't have enough power to run the graphics card. The graphics card requires 300W as a guideline, but how much power you should have is determined by the amount of amps on the 12V rail. If your PSU says 330W on the sticker it might only be able to deliver 200W (possibly less) on 12V depending on the specific model, which wouldn't be enough for a system under load with a 750Ti.
 

rj2long

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http://s15.postimg.org/sffy7wizv/Ac_Bel_PC9045_ZA1_G_Label.jpg

this is the one(from a pre-built asus cm1630) looks like only 216W on the 12v rail. bummer. would it be possible to run things on lower settings until i get a new psu or am i better off pulling this out and putting my old card in?
 

danisnotonfire

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Hmm, looks like a rail can deliver up to 15A (180W) at once, but the load of both rails combined must be less then 216W. Not a great design. I wouldn't run it even on lower loads because you still run the risk of overloading the PSU on 12V. I'd recommend putting your old card back in until you can upgrade the PSU.
 
Solution

rj2long

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Thanks for the imput. now off to newegg to find a new psu.

 

danisnotonfire

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If you could provide me with a budget then I can definitely help you in finding a good unit for your money.
 

danisnotonfire

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GTX-750-TI-REVIEW-48.jpg

power-consumption1.png


Consider that most of this power will be drawn off the 12V rail, and that PSU isn't guaranteed to be able to reliably deliver all rated 216W of it in the first place.
 
But it's still more than sufficient for the OP's system configuration.

The charts from your links are from systems that draw way more power than the OP's ASUS Essentio CM1630.

hardwarecanucks.com uses an Intel i7 3930K system overclocked to 4.5GHz.

legitreviews.com uses an Intel X79/LGA2011 Platform test system.

Using those charts as an indication of the OP's system power consumption is just misleading.
 

rj2long

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I'd like to keep it around 50 bucks was thinking maybe this one http://www.amazon.com/EVGA-80PLUS-Certified-ATX12V-100-W1-0500-KR/dp/B00H33SFJU/ref=sr_1_1?s=pc&ie=UTF8&qid=1434161480&sr=1-1&keywords=500w+power+supply&refinements=p_n_feature_keywords_two_browse-bin%3A6906984011

 

danisnotonfire

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Never said that those should be a down-to-the-watt accurate representation of how much power OP's system is drawing, but as I stated you'd be brushing against that maximum power draw limit, and there's NO guarantee that the OEM PSU can deliver it's full rated 12V capacity, never mind it's full rated wattage.

I had an HP with a "400W" PSU. 26A on the 12V rail claimed, so 312W, thought it was not bad... kept shutting down when under load with a measly GT 630 added.
 

danisnotonfire

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http://pcpartpicker.com/part/seasonic-power-supply-ss350etbronze ?