PSU help

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1

The current build:

i5 3470 http://pcpartpicker.com/part/intel-cpu-bx80637i53470

Gigabyte hd7950 windforce http://pcpartpicker.com/part/gigabyte-video-card-gvr795wf33gd

Asus p8h77-v http://pcpartpicker.com/part/asus-motherboard-p8h77v

Samsung 840 series 120 SSD  http://pcpartpicker.com/part/samsung-internal-hard-drive-mz7td120bw

Corsair vengeance 8gb 1866mhz http://pcpartpicker.com/part/corsair-memory-cmz8gx3m2a1866c9b

WD 500gb sata 2 (old HDD)

Optical drive (obvs)

Is the XFX 550 Core edition ( http://pcpartpicker.com/part/xfx-power-supply-p1550sxxb9 ) powerfull enough to power this rig? I plan to OC the GPU a bit in future.

2

You should be fine. I wouldn't add another graphics card with that PSU though, If you intend to do that in the future, I'd reccomend something around 750W. Other than that, it should serve you well!

3

I am fully aware of this. If i'll ever add one (i think not) i'll buy another PSU.