550w PSU enough for this spec?

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Will a 550w Corsair PSU be enough for these components?

i7 920 (will be overclocked)
Titan Fenrir CPU Cooler
6GB Corsair XMS3 12800C8 (i think C8)
Gigabyte GA-EX58-UD3R
XFX 4890 1GB
Samsung Spinpoint F3 1TB 7200rpm 32mb cache
Sony AD-7240S-0B - 24x DVDRW
Windows 7 Home Premium 64 Bit
Antec 900

I'm not planning on going crossfire.

Thanks in advance

The Scop
 
Yeah it should do just fine.But if the PSU is the Corsair VX 550W then you could get the Corsair TX 650 W for the same price
 
Well the main difference is that one is a 550W and the other one is 650W.If you get the 650W one which has the same price as the 550W you'll have more room for future upgrades.
 
I'd go for 650 minimum or if you can, a little bit more, and stick with a premium make, don't be tempted by the cheapos. You don't want things to go bang.

I've used Bequiets, Antec and Corsair and found them all to be good.

If you're anal about your braiding then go modular if you can afford it.
 
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