EggXpert

I'm looking at using the "Antec earthwatts EA380 380W Continuous Power ATX12V v2.0 80 PLUS Certified Active PFC Power Supply - Retail" to power:

ECS BLACK SERIES GF8200A (V1.0) AM2+/AM3 NVIDIA GeForce 8200 HDMI ATX AMD Motherboard - Retail
AMD Athlon II X2 240 Regor 2.8GHz Socket AM3 65W Dual-Core Processor Model ADX240OCGQBOX - Retail 
HIS H467QS1GH Radeon HD 4670 1GB 128-bit DDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Retail
OCZ Gold 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model OCZ2G8004GK - Retail

The whole wishlist is available at: http://secure.newegg.com/WishList/PublicWishDetail.aspx?WishListNumber=11272725

Think it'll be enough? 

I hate to say it but its more then likely underpowered for the build would look at a 550 650 for the build that will allow some expansion. Corsair would be my choice for psu's.

You shouldn't buy a psu based on price. It should be one of the more pricey items in your build. Quality psu's cost money and they provide clean and stable power.

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Okay. I was just asking because the Antec earthwatts was in the second tier in the PSU guide, and because the processor and video card are low power. Thanks.

EDIT: What about this guy: CORSAIR CMPSU-400CX 400W ATX12V V2.2 80 PLUS Certified Compatible with Core i7 Power Supply - Retail

Still need higher wattage?

Actually, either of those power supplies will work just fine. 

Here, I'll run a wattage analysis for you:

CPU: 65watts
GPU: 59watts
Hard Drive: 10watts
Optical Drive: 25watts
Motherboard: 20watts
RAM, Fans, etc: 25watts

Total: 204watts, at max load

As you can see, 380watts is more than enough.  That Antec Earthwatts is a perfect power supply for your build.  Those Radeon 4670 graphics cards are very power efficient, so that keeps your system wattage down. 

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This is ATI's recommendation for a power supply. So Compwiz you might have to rethink your wattage.I know they tend to over recommend like I do but that's just for a cushion for future expansion. Having more power doesn't hurt anything.

400 Watt or greater power supply (550 Watt for ATI CrossFireX technology in dual mode) is recommended

 I know you fancy yourself as the psu guru here but selling people just what they need is not doing them a service for future expansion

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sparker366:

 I know you fancy yourself as the psu guru here but selling people just what they need is not doing them a service for future expansion

I guess I've just seen way too many people who bought a Dell PC 6 months ago and then are looking to upgrade their graphics cards to a GTX 260 or Radeon 5870, but can't without throwing out a perfectly good 300 watt PSU..

Not to mention that AC->DC efficiency curves start to go downhill quickly when the PSU hits around 70% load..  Along with the PSU fan working harder and the PSU running hotter..

Well, what about this one, then? It's 400w, and I'm not really looking to ever utilize the Crossfire stuff.

CORSAIR CMPSU-400CX 400W ATX12V V2.2 80 PLUS Certified Compatible with Core i7 Power Supply - Retail 

sparker366:

This is ATI's recommendation for a power supply. So Compwiz you might have to rethink your wattage.I know they tend to over recommend like I do but that's just for a cushion for future expansion. Having more power doesn't hurt anything.

400 Watt or greater power supply (550 Watt for ATI CrossFireX technology in dual mode) is recommended

 I know you fancy yourself as the psu guru here but selling people just what they need is not doing them a service for future expansion

There are a couple reasons why ATI and nVidia have such high wattage recommendations.  To begin with, they don't know the specs of the rest of your system.  So, they have to assume that you're loading it out with high wattage components.  A 140watt CPU, a couple optical drives, a few hard drives.  But, that still would only come to 324watts, with this graphics card. 

So, secondly, they don't know how good of a power supply you're getting.  Many cases come with power supplies, like RaidMax or Apevia, that are complete junk.  They're lucky to put out 100watts less than what they're rated for. 

To try to avoid problems, ATI and nVidia simply push their wattage recommendations up by a couple hundred watts.  Better safe than sorry, right? 

But, in this case, we do know the system configuration, and we do know that the power supply is capable of putting out the watts its rated for. 

And, upgrades?  Let's say he upgrades to a nice fast new ATI Radeon 5770.  His system will then have a max draw wattage of 253watts, still well within the capabilities of the Earthwatts 380.  He could then go on to add a second optical drive, and a couple more hard drives, if he wanted to.  That's a total of 298watts with all of those upgrades.  No problem at all.

If you're going to say that he needs more wattage, then you are saying my wattage analysis is wrong.  His system physially cannot pull more than 204watts, with all of the components running full out.  So, if you're going to disagree, you would need to point out a mistake in my wattage analysis.  I have done my research, so I doubt you'll find anything wrong, but you're free to try. 

Either of the power supplies that colorme has mentioned would easily power his computer, and handle upgrades. 

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Math isn't everything in this. I am going to say that a 500w psu would be what I would put in most every build except for the highend hard core build. The reason being is not to say your analysis is wrong which its most likely not but its way to conservative for my likings. Does it hurt to have more power then what is mathematically called for? I think not. It won't hurt anything but maybe drive his power bill up a few cents or a dollar.

So with that said don't reply to this just leave it alone and let the OP do what he feels best. We all know that most builders look for the cheapest and lowest wattage psu they can find and don't care about quality or anything price is their deciding factor.

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