Need help with my power supply

Hey guys i been having many problems when i try to play some games they all been crashing lately and everything is pointing to my PSU.

So i need to know if my Psu can hold all my hardware while playing heavy games on High settings, or if theres any software that can help me solving that. (srry for bad english)

My Specs:

OS:Windows 7 Ultimate x64

CPU: Intel Core I5-3330 3.00 ghz

Motherboard: H61M-A/BR

Memory: DDR3 1333mhz 8GB

Graphics Card: GTX 760

Sound: Onboard

Monitor(s) Displays: Samsumg B1930N

Hard Drives: an old 320GB Samsumg

PSU: Thermaltake Smart 550W

Cooling: 3 Cooling fans

Keyboard: A very cheap one

Mouse: Rappo V2

Your graphics card is rated at 170 watts.

I think that Thermaltake is made by Channelwell. I couldn't find a review on it, but I've seen bad reviews for some Thermaltakes.

A 550 watt supply is certainly enough if it's a quality unit. I'd be suspicious of that PSU, but I can't find anything definitive about it.

Edit:

Here's a review

http://hexus.net/tech/reviews/psu/39...0w-psu/?page=3

which has this comment:

Bottom line: a no-nonsense power supply that is capable of powering most mid-range PCs for today and tomorrow.

The Good

Solid performance
Nice cabling
Attractive price

The Bad

Voltage regulation droops at extreme load

Here's another review:

http://www.eteknix.com/thermaltake-s...supply-review/

Pros

3 Year Warranty
Good voltage regulation
Hybrid/Semi-Modular
Affordable
Good modular cables
Relatively quiet
High Efficiency

Cons

Disappointing ripple suppression relative to competition
Poor Crossload performance – voltage droop and high ripple
Could benefit from more PCIe connectors


Read page 10 and make your own conclusions.