Ive just ordered an Intel i5 650 @ 4.32GHz - Gigabyte GA-H55-UD3H - 4GB DDR3 1600MHz Memory Overclocked Bundle from AWD-IT, and im going to be using a AXLE nVidia GeForce 9600 GT 2048MB DDR2 PCI-E 2.0 for the graphics.
Colors-IT 650W Gold Silent PSU 12cm fan SATA is the PSU im looking to be using.
My question is will this PSU be enough or will i need to upgrade to a more powerful unit?
Any advice you can give me will be much appreciated
Better a seemingly less powerful, high quality PSU. Even if the CiT managed to put out a total of 40 amps on the 12 volt rails, that's pretty weak for a 650. A good 650 should produce around 50 amps. And the Cit only has one PCIe power plug.
A 550 watt Corsair will power a system using any CPU with any single GPU card except perhaps the GTX480.
Obviously you need to look at the total output wattage it delivers but also the output across each rail the most important of which today is the +12V rail. This is either measured in watts or amps. Your CPU, GPU and the majority of other system components utitlise the +12V rail so this is where you need most of your output. For example, you could have a 400W PSU that only outputs 150W on the +12V rail. This would be useless nowadays. You also need to pay attention to the manufacturer of the PSU since their reputation should be a deciding factor. Corsair, Seasonic and the newer Antec models are recommended but thats not to say there are other brands that supply high quality units just that these brands have the best reputation.
are two websites that offer highly detailed technical reviews as well as guides and tutorials on PSU selection and what everything means. Both of these are well worth taking a look at when you get a few spare minutes. Hope this clarifies!