how to calculate power supply required for my pc?

Question

hi there. I have a small problem as i brought the following components for my pc. Now the only thing left is the power supply . need to know how much i should get. given below is my computer parts.
Ram-4 gb ram,
Hard disk-500 gb ,
Processor- amd phenom 2 x4 965 BE
motherboard- asus m4a88td-m usb3(graphic card onboard- redon hd 4250, 1gb)
cabinet fan- 3 cooler masters blade master(120 mm),
cooler-1 cooler master n520 cooler
1 dvd writer

also will the cooler masters N520 fit in my; cabinet cooler master elite 310 because it seem to be a little big..

also i would like to light up my pc a bit.....thought of getting coolermasters led fans but my budget is almost over.....any other way????

So from the above details is 460 watts or 500 watts .......most of them are saying 460 is enough....what should i do

Answer 1

In all seriousness, that system wouldn't draw over 350 W. But, you want your continuous power consumption to be at 50% to 80% of your maximum output for the best efficiency.



.8 * x = 350

x = 350/.8

x = 437.5



Get a PSU that does supplies 450 W continuously. Consider leaving room for upgrades (>= 150 W for video cards).

Answer 2

500 watts is O.K. You probably won't find a 460 watts one anyway. That cooler will fit. You will probably live to regret the onboard graphic card. Reconsider.

Answer 3

Most people are boobs who don't realize that a PC doesn't eat nearly as much power as they think. Even PCs with high-end video cards and major CPUs don't usually eat more than 400w under a full load. 400-500w will be just fine and leave you with plenty of headroom. Don't cheap out on crap brands. Get a nice Antec or Corsair power supply;

Answer 4

400 is enough, the only definite way of calculating is according to the video card requirements. I do not see a video card on the list. I would go 500 in case you want a video card.

Answer 5

in accordance to the minimum PSU specs for Ati and Nvidia enjoying cards, there are no longer any photos enjoying cards worth procuring. despite if the 6450 has a minimum requirement of 400W, it commonly will artwork. The 6450 will no longer regulate gaming exact despite if, so do no longer hardship with that determination. purely purchase a sparkling vigor provide and a extra fee-helpful photos card. which you will get 450W skill provides for extra or less 35 greenbacks. you ought to get a HD6670 for sixty 5 greenbacks so which you do no longer omit your one hundred greenbacks money, although i could propose you to spend somewhat bit extra for the HD6770 and the energy grant.

Answer 6

Id be looking at the 500-700w ranges of PSU and i would get a named brand. Could get one for around £50.

Answer 7

don't compute the exact wattage of your pc, it's always better to have a higher wattage of your psu. because in a long run, if you want to upgrade some of your hardware and you have weak psu. then you need to upgrade again.. and please go for branded psu's