I Need a new Power Supply

After installing the new gigabyte Motherbaord and cpu today and going through the connections a few times myself and then calling gigbyte tech support and having them walk me through trouble shooting the problem I've come to the conclusion that I do need a new PSU for this beast. My old PSU doesn't even have the 2 12V ATX CPU Power Cables that are needed to run the new Motherboard and CPU.

So that being said I'm thinking of buying this one: Antec BP550 Plus 550W Continuous Power ATX12V V2.2 SLI Ready CrossFire Ready Modular Active PFC Power Supply - Retail

What do you think about it? Do you think it will work for me and do what I need to run the new motherboard, cpu video card etc that I have?

What other reccomendations can you give me for my system? Thanks again for the help, I couldn't do this stuff without you guys in here helping me!

I was hoping that one of the guys who helped me in my other thread would see this and jump in and help me some more but this is what I have:

Gigabyte GA-MA785GM-US2H RT Motherboard
AN AMD| ATH II X2 250 AM3 3.0G CPU
EVGA GT 7950 Video Card
2 Sata 3GB HDD"s
A Floppy Drive
a cd rom and a cd burner

I use it for email, surfing the web ms office 2003 pro and playing online games like SWG and WOW.

Wait wait, 2 Sata 3GB HDD? I thought the smallest Sata HDD was 8gb O.o....
Anyways, you dont need 550w for that setup, unless your thinking of upgrading GPU. With around 400w you should be fine and dandy with left over watts

Like I stated in your last thread:

That PSU would work. Here's a list of the one's to consider:

$80 shipped. 35A on the 12v rails and comes with 1 x 6 pin & 1 x 6+2 pin PCI-e power connectors for your GPU and has 4 & 8 pin CPU power connectors.
PC Power & Cooling Silencer PPCS500D 500W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS Certified Active PFC Power Supply compatible with core i7 - Retail

$65 shipped! Your selection has 32A on the 12v rails and also has the 6 pin and 6+2 pin PCI-e power connectors and 4 & 8 pin CPU power connectors.
Antec BP550 Plus 550W Continuous Power ATX12V V2.2 SLI Ready CrossFire Ready Modular Active PFC Power Supply - Retail

$68 shipped! Has 34A on the 12v rails and has 2 x 6 pin PCI-e power connectors and 4 & 8 pin CPU power connector.
SeaSonic SS-500ET 500W ATX12V V2.2 / EPS12V V2.91 SLI Ready CrossFire Ready 80 PLUS Certified Active PFC Power Supply - OEM

You could run on a 400-450w PSU with what you have, but you'll just need to get an adaptor from 2 x 4 pin connector to a 6 pin PCI-e power connector. Usually they come in most GPU boxes when you buy one. If you have one, than you could save a little $ and get a quality 400-450w PSU. This option will limit your upgrade paths a bit, but it will save you a little $ now and you can upgrade later, if you need to.

Suggested PSU's in the 400-450w range:
$50 shipped! Has 30A on the combined 12v rails and comes with 1 x 6 pin PCI-e power connectors and 1 x 4 pin CPU power connector.
Antec earthwatts EA430 430W Continuous Power ATX12V v2.0 80 PLUS Certified Active PFC Power Supply - Retail

$50 - $20 MIRc = $30!! Has 30A on the 12v rail and comes with 1 x 6 pin PCI-e power connectors and 4/8 pin CPU power connector.
CORSAIR CMPSU-400CX 400W ATX12V V2.2 80 PLUS Certified Compatible with Core i7 Power Supply - Retail

Now just remember which power connections you need (PCI-e/CPU) and select the right PSU for your needs. Any of these PSU's will work for you, just remember that you will need a 2 x 4 pin to 6 pin PCI-e power connector on the 400-450w PSU's, if you go that way. This "Y" connector should've shipped with your GPU, so check that out in your shipping box and see if you want to go that way.

At the 400W level, the OCZ StealthXStream OCZ400SXS 400W ATX12V Active PFC is available from NewEgg for $24.99 with free shipping. Be aware, that is after a $15 rebate which expires 9/16(today!) though so you'd have to purchase it today.

HardwareSecrets posted a very favorable review of this unit. I'll quote the conclusion here for you, but it's an interesting read:

"OCZ StealthXStream 400 W is probably the best entry-level power supply we reviewed to date. It can not only deliver its labeled power at 47º C, but also presents a high efficiency of up to 85%, voltages very close to their nominal values (below 3% margin, while ATX spec allows up to 5%) and amazingly low noise and ripple levels.

If you are building an entry-level or mainstream computer with a simple video card, this is one of the best options on the market and its low price (USD 55) makes it to have an unbeatable cost/benefit ratio."