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How much watt I need?

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September 4, 2012 8:13:30 AM

480Watt is enough for this?

PNY GeForce GTX 580 - 1536 MB GDDR5 - PCI-Express 2.0
GIGABYTE GA-Z68AP-D3 - Socket 1155 - Chipset Z68 - ATX
GEIL RAM PC Black Dragon 2 x 4 GΒ DDR3-1600 PC3-12800
INTEL Core i5 2500K - 3,3 GHz - Cache L3 6 MΒ - Socket LGA 1155
Hard Disk 500GB
DVD-RW

More about : watt

September 4, 2012 8:25:18 AM

480w should be enough if its from a good brand (Corsair,Antec,Seasonic) but I'd go with 550w at least just to be sure
a c 85 ) Power supply
September 4, 2012 8:41:30 AM

Any good 500W should be able to handle this. Make sure it has all the right plugs.
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September 4, 2012 9:25:19 AM

580GTX requires 600W or more.....

so the answer to your question is no. you'll need more than 480W.
September 4, 2012 9:28:34 AM

Xoemab said:
Can someone use this website and send me the result? I cant understand all parts....
http://extreme.outervision.com/psucalculatorlite.jsp


With the parts you listed is says 442W Recommended. What is your power supply manufacturer? It really depends on how good it is.
September 4, 2012 10:05:02 AM

Then what about if i buy Advance MPT-6500 650W? Is the cheapest that I can find on my local shops
a b ) Power supply
September 4, 2012 10:24:19 AM

captainblacko said:
580GTX requires 600W or more.....

so the answer to your question is no. you'll need more than 480W.

The manufacturer's "requirements" are more like recommendations than actual requirements. The GPUs never require anywhere near that much power.

GPU manufacturers over-inflate their "requirement" to improve the chances that their cards will work properly with crappy PSUs that cannot reliably deliver anywhere close to their claimed capacity. Since they also have no idea what other extras are in people's PC, they also include extra headroom for that.

In other words, the "requirements" are little more than blind generalized recommendations.
September 4, 2012 10:26:57 AM

In my local store 500 and 650 watt have same price... So which one take?
a b ) Power supply
September 4, 2012 10:30:59 AM

Xoemab said:
In my local store 500 and 650 watt have same price... So which one take?

Depends on each PSU's quality.

A crappy 650W PSU can be much worse than a good 500W PSU.
September 4, 2012 10:35:14 AM

Xoemab said:
Then what about if i buy Advance MPT-6500 650W? Is the cheapest that I can find on my local shops


I learned from experience to get a quality psu over wattage. The best quality PSU on the market are, Antec, Corsair, XFX, Seasonic, Rosewill, and PC Power and Cooling. I wouldn't even touch the one you want to get. Is there a reason you want to buy locally vs online? I basically have to order everything online because there isn't any place around that sells new computer parts and if they do it's very limited.
September 4, 2012 10:42:30 AM

For a 680 it's 30A on the 12V rail recommended I seem to remember
a c 122 ) Power supply
September 4, 2012 10:59:59 AM

Xoemab said:
Then what about if i buy Advance MPT-6500 650W? Is the cheapest that I can find on my local shops
No you need a reliable PSU see if you can find XFX P1-650X-XXB9 650W ,Corsair TX650V2, PC Power and Cooling Silencer MK III 600W,Rosewill CAPSTONE Series CAPSTONE-650,Antec EarthWatts EA-650 GREEN 650W,SeaSonic S12II 620 Bronze 620W,Antec HCG M Series HCG-620M 620W. ;) 
September 4, 2012 11:28:23 AM

Please don't skimp out on a good PSU. If you buy a cheap one, and it goes, you could compromise the whole system. Get a good 650 watt powersupply, and call it a day.

The problem with buying "cheap" powersupplies, is that they usually don't have enough power for the 12v rail (which is where you need power for all your components). If you look on the side of ANY power supply, check to see that there is no less than 450 watts on the 12v rail. If there's less, move on.
a c 85 ) Power supply
September 5, 2012 1:43:27 AM

So two links are given showing 425-450W and you still want a 650W PSU? A 500W PSU loaded up to 450W is still only at 90%. A 550W is just over 80%. This is fine for a PSU. a 650W PSU would only be loaded to just under 70%. These quality units are fine at 80%. I'd only get the 650W if it wasn't any more expensive then the 500/550W unit.
a c 243 ) Power supply
September 5, 2012 2:31:55 AM

4745454b said:
So two links are given showing 425-450W and you still want a 650W PSU? A 500W PSU loaded up to 450W is still only at 90%. A 550W is just over 80%. This is fine for a PSU. a 650W PSU would only be loaded to just under 70%. These quality units are fine at 80%. I'd only get the 650W if it wasn't any more expensive then the 500/550W unit.

Niether of them takes psu efficiency into account

HardwareCanucks uses an HX1000 , about 83% efficient at those load levels

450w x .83% = ~375 watt DC load , about 75% of a 500 watt unit's capacity

Techspot uses an OCX GXS 700, about 80% efficient at the same load, not doing the math this time

Both reviews also use more power hungry, overclocked I7 / X58 based systems
a c 111 ) Power supply
September 5, 2012 2:33:35 AM

"Technically" you could run the 580 on a quality 500W, that is assuming it is very efficient AND it features all of the PCIE connectors for the card!
a b ) Power supply
September 5, 2012 3:22:27 AM

amuffin said:
"Technically" you could run the 580 on a quality 500W, that is assuming it is very efficient AND it features all of the PCIE connectors for the card!

The PSU's efficiency is irrelevant. A real 500W PSU will deliver 500W regardless of efficiency. The difference is how many watts it needs to draw from the wall to do so. A 80% efficient 500W PSU would draw 625W to deliver 500W.
a c 85 ) Power supply
September 5, 2012 6:32:03 AM

Thank you Dell for proving my point. I didn't bother looking up the sites to see where/how the efficiency comes into play. But if you are only needing 375W for the system then the 650W is only an even worse idea. More so if you aren't using an OC'd i7 and its closer to 350-325W. At that point you are down to 50% on a 650W unit and its efficiency won't be as good if you loaded it to 75%. "Overkill" might seem like a good idea, but its going to cost you not only more to buy it, but to use it as well.
a c 122 ) Power supply
September 5, 2012 6:45:39 AM

OP i recommend you check this link for questions in further detail so you don't get confused http://www.jonnyguru.com/modules.php?name=NDFAQs and here for a basic list to know which are lemons http://www.eggxpert.com/forums/thread/323050.aspx If you'd like to know who manufactures a certain power supply, here a chart and instructions that you can use to look it up: http://www.realhardtechx.com/index_archivos/Page541. Also you could always send delluser1 or ko888 a private message they know allot about PSU stuff not that i am saying others on this thread don't but they would be who i would ask for help from in this sort of question anyway good luck!
September 5, 2012 6:04:42 PM

Get a Seasonic s12II 520.
It has a one eight pin PCI-e and 2 six pins so I'm assuming the guys at seasonic know their stuff and thats why they included those connectors.
Also it has 40amps on the 12v rail.
!