alexej1

Now. I have done it, because you said it. and  with one stick it works. Now it says the bios was reset. After I confirmed the reset I was able to start the system and install windows. So I have to thank you all and esspecially you Jumper118. Now its time for some overclocking. Let´s have a look how much I can push the CPU. The guy who selled me the CPU said 4,5 GHz without Voltage increase are possible. Wish me luck.

thank you very much

if its the difference between 8GB of memory and an i5 with a GTX 770, or 16GB of memory with an i5 and a GTX 760.  I recommend going for 8GB of memory. 

no a 500w psu is enough @stock clock the system will use 385 Watts and with the cpu overclocked to 4.44 GHz it will need 425 Watts according to http://www.extreme.outervision.com/PSUEngine. with this psu it isnt possible to upgrade another graphics card but you arent so close to the limit either.
yes their is a stock cooling unit but if you re planning to use it, your cpu will run hot and your system will be loud.

what would you prefer amd or intel?
with amd you are able to get more bang for the buck:
 
http://de.pcpartpicker.com/p/3DDBj
these are all prizes from germany, you should be able to get these parts cheaper in estonia i think

Those people aren't too bright...I mean if a 2500k doesn't bottleneck why would a 3820? 

builds 2011 rig...gets a quad core......