Is my 430 watt Antec PSU good enough for an EVGA 550 ti?

It will work without any problems  .

Thanks. I was a bit confused because I didn't know if I had to have at least 24 amps on one rail.

I see. Best of luck to you!

Hello Robert781,

While the 430W power supply meets minimum qualifications you do not want to go minimum especially if your intent with the TI 550 is playing games for hours on end, in fact the power consumption may exceed 400 watts and overload your PSU.

I recommend the HCG-620-M which has 48 Amps on the 12 V Rail. Not only that but the capacitors are better, has 80 plus Bronze power rating to save electricity, as well as having a 135mm top fan, and modular cabling which allows more efficient air flow. You can purchase one off of Newegg for around $80 here:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Antec

It should work, but if you haven't gotten the 550Ti, I wouldn't recommend it. Go for the 7770. Its the same if not a tad more buck but alot more bang.

EDIT: I <3 Antec. I've got a Earthwatts 380 on an AMD 955 and a 6770 Radeon. I also have the HGC-M 620 for my main computer inside a Sonata Proto.

EDIT AGAIN: For the Antec dude, your customer support is awesome. I emailed/messaged you about the Sonata Proto not having a USB adapter for the front USB ports, and then I receive in the mail without knowing anything a USB 3.0 to 2.0 converter. You guys are great!

But if we are worried about the power of the 550Ti, the 7770 and 7750 use significantly less power than the 550Ti.

I haven't bought it yet. I was also looking at the HD 7750 because from what I read, it's almost as good as the 550ti and uses a lot less power. Then I came across some news that NVIDIA is about to release the GTX 650, which is basically a 640 gt with DDR5. It also uses a lot less power. From some of the stuff I've read, the GTX 650 is going to be released next week.

In regards to the HD 7750, I do have some concerns about the drivers. Several months ago I bought a HD 6670 and had to return it because half my games would crash. I returned the card and reinstalled my old 8600 GTS. When I reinstalled my older Geforce, those games that crashed worked again. The two games were Dragon Age Origins and Diablo 2. I tried to figure out the problem with the crashing games but couldn't figure out a fix with the HD 6670.

I would like to give ATI another chance, because NVIDIA cards are way overpriced for the performance they give, for the entry level gaming cards anyways.

Without knowing the rest of the OP's specs how can you come to that conclusion ?
My oc'd I7-930 and GTX570OC very rarely draw 400w from the wall when gaming, that equates to less than a 65% load on my Neo Eco 520
OP would need some pretty heavy specs to come anywhere near 400 watts with a 550Ti that uses around 7 amps less power

Well, if you can make the jump for the 7770 I would go for it, but if you want to wait, you can wait for the 650 and look at price/performance ratios.

Oh, just to add some more info about my specs....

I have a Q8200 Core 2 Quad @ 2.33 GHz
4 Gigs of Ram-(I'll be upgrading that soon)
Windows 7 64 bit
Of course the Antec 430 watt PSU with three 12v rails, each one being 16A

My 8600GTS just died after 4 1/2 years and I have a lousy 7600 SE in it right now lol. I can still play my old games like Diablo 2 in the meantime until I get my upgrade. I don't do heavy gaming, but I do play some WoW, older Diablo games, etc....I want to play Skyrim, but my old 8600GTS was too weak to play it smoothly. I also want to check Diablo 3 out.

If you are going to overclock the video card, a 500 to 600w PSU would be perfect otherwise your Antec will do the job. Your CPU is 95w, so if you are a hard gamer, I think that a new psu would be better. Check the wattage of your gpu, havent found it in the internet.

PS: Nice PC, but choose a ATI card. Really, I'm not a fanboy, i've had some nvidia gpus. Right now I'm using a OC XFX Ati Radeon 4870 1gb DDR5 and I can run BF3 in Ultra, while the GTX 260, that has the same price, has a very poor performance!

430 watts / 32a is plenty for the specs, even if you overclock
Your psu is getting long in the tooth a new one wouldn't be a bad idea
Have you given it any thought and come up with a budget in case it was neccessary ?
Where are you able to purchase from ?

If it comes down to it, I can order a PSU a little later, but I really don't want to do that right now, especially if the one I have is sufficient enough for the cards I'm looking at. Right now I don't want to go over $130. If I tack a PSU on with a card purchase, I'll be approaching the $200. I've read a lot of reviews and such with HD 7750 users who said that card was running fine on their 350 watt PSUs, so I think my current one can handle that.

I'm sure I'll order online. I went to Best Buy the other day and their prices are ridiculous. They were charging $50 more for graphics cards compared to what's online. For example, Newegg, Tiger Direct, and Amazon had the EVGA 640 gt for around $105, along with a $10 rebate. Best Buy had the exact same card for $149. $149 for a 640 gt lol! The same online stores I mentioned above, they have the EVGA 550 ti for around $115, with a $15 rebate. Best Buy had the same card for $179. No wonder their profits are dropping like a rock lol.

Yea BestBuy's prices are alot more than regular. They're pretty lame.

Should certainly be sufficient, especially for a 7750 that doesn't require external power
I've used a truckload of low wattage Antecs and after 4.5 / 5 years I think about replacements
BB puts you on the same continent as me, helpful to know if reccomendations are needed, not that I would reccomend a purchase there