How many watts do I need for this build?

[esabin]

I'm building my own PC for the first time and I'm having a hard time figuring how how much wattage I need for my build. I'd like to probably go a step above the minimum needed just in case.

Here is my build so far:

CPU: AMD Phenom II 965 BE
Mobo: Asus M4N75TD
GPU: EVGA GeForce 460 GTX 1GB (thinking about picking up a second one for SLI later on)
RAM: G.Skill Ripjaws 8GB (2x4)DDR3
HD: Samsung Spinpoint 1 TB 7200rpm

Any suggestions would be great, I'm on a budget so i'm looking for something that is a best performance for price (I'd like to stay under 125 tops) If there are any other suggestions to my build that'd be great as long as they are around the same price as what I have listed.

Thanks!

 

[kikireeki]

You need a 600w psu at least for your second VGA. but I have to tell you that your mboard choice is not that good.

helpful link:
http://extreme.outervision.com/psucalculatorlite.jsp

 

[kevin83]

Newegg's power calculator says at least 737 watts if you plan to sli. If you want a 750 watt supply I would go with the Antec HCG-750. If you don't care about sli, then the Antec BP550 Plus is a good option. I wouldn't worry about going over that as the calculator most definitely overestimates your power usage. (It's a marketing scheme)
HCG-750
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371049
BP550 Plus
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371016

I prefer Antec PSUs for the reliability, if you don't care so much you can go with less well known brands for lower prices.

 

[esabin]

What's wrong with the mobo? From what I read on newegg.com from users it was a decent mobo. Can you suggest one with a similar price point that is better that has SLI/Crossfire?

 

[Silvune]

It's a nvidia chipset, which is quite old and lacks modern features.
an alternative:
Asrock 970 Extreme4 AM3+ $105 (10 rebate, $7.87 shipping)
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157262

A high quality 650W PSU would be enough for your build even with a second GTX 460, but there aren't that many 650W PSUs with four PCIe connectors. And if you ever wanted to go for two more powerful and power hungry graphics cards then 750W would be the better choice.
If you are interested in a 650W PSU with four PCIe connectors then the XFX Pro 650W Core Edition 80Plus Bronze is one of the cheaper candidates.

 

[esabin]

It's a nvidia chipset, which is quite old and lacks modern features.
an alternative:
Asrock 970 Extreme4 AM3+ $105 (10 rebate, $7.87 shipping)
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157262

A high quality 650W PSU would be enough for your build even with a second GTX 460, but there aren't that many 650W PSUs with four PCIe connectors. And if you ever wanted to go for two more powerful and power hungry graphics cards then 750W would be the better choice.
If you are interested in a 650W PSU with four PCIe connectors then the XFX Pro 650W Core Edition 80Plus Bronze is one of the cheaper candidates.

Thanks for the info, great answer!

 

[blackhawk1928]

For your hardware, I'd get something between 600-700watts. It will give you more then enough overhead on top of having SLI.

 

[esabin]

Best answer selected by esabin.

 

[Mousemonkey]

This topic has been closed by Mousemonkey