Silverstone ST45SF PSU enough for thsi PC?

[Clinomaniac]

Hi there,

I'm planning a new M-ITX build and am looking for some reassurance lol.

I've done my research and I believe this PSU should be good enough but it would be nice to hear some decent opinions.

Here it is: http://www.silverstonetek.com/product.php?pid=253&area=usa

It is an 80 Plus small form factor power supply rated at 450W continuous power at 50 degrees. It's the highest performance small form factor power supply available to buy and has 36A on the 12V rail. I have a very small case so would like to use this if possible to maximise airflow. Will it be good enough to power the following build do you think?

My proposed build:
Lian Li PC-Q11 Case (very small, 1x 140mm Fan only)
i7 2600k - overclocked to 4.4GHz
Thermalright AXP-140 CPU Cooler (very low profile cooler)
Zotac Z68-ITX A-E Motherboard (only Z68 ITX board available)
8GB DDR3
Palit GTX 560 Ti Sonic (good performance, short PCB length 188mm)
1x Corsair Force GT 120GB
1x Western Digital Caviar Black 2TB
Blu-ray drive
Silverstone ST45SF 450W Power supply

The case will fit an ATX power supply but I would like to avoid using one if possible as I want to maximise air flow.

All inputs are appreciated.

:thumbsup:

 

[Zap]

Hello Clinomaniac, and welcome to AnandTech Forums.

GTX 560 Ti is probably the upper limit. The only thing the smaller PSU would help is to give you a bit more CPU heatsink clearance. It won't help much for case ventilation.

 

[RaiderJ]

I have the PC-Q08, and would recommend a modular PSU for that case. Take a look at my build log to see what I used.

Power wise you should be fine. Looks like the GPU maxes out at 180W, so even with an overclocked CPU I wouldn't imagine you'd have issues. However, just to be on the safe side, I'd install all your components at stock speeds, stress test thoroughly, and only then start your overclock.

Not sure how well that motherboard will overclock either - it could be tough to tell when you reach a point of instability whether it's your CPU, motherboard, or even your PSU that's stopping you.