No sooner said than done: cloned the hard drive with the Samsung software in a good half hour (only possible via USB docking station or adapter cable !!!) - but this time depends on the amount of data from, for me it was only about 200GB - the SSD connected to the cables of the old hard drive - running immediately, you only hear the PC fan, just great. Before one should make sure that in the BIOS the AHCI mode is enabled - how to do it, but you can find help in forums and internet-advisors of various magazines. I read further on the Internet and found indications of how the SSD is set up correctly: Here I recommend the PC Magazine.
After I had checked the settings (for example, must absolutely be switched off defragmentation, but that does Windows 7 automatically) had or made, I invited me down the Magician software from Samsung. This software manages the SSD and performs some of the aforementioned steps itself, for safety's sake - I think - you should follow the advice from PC Magazine earlier yet. In the Magician software, you can now make settings that affect on various parameters the SSD. I chose here "maximum reliability", because my speed is less important.
To power the 850Pro: In addition to the fantastic low volume of the system they will boot very quickly, overall everything is still liquid - really unhappy I was recently with my 4 year old PC but not (Asus P7P55D LE, i5 CPU, 4GB RAM) , It is also not a SATA6 port, but only a SATA3 - here try various magazines repeatedly to make old motherboards maggoty. Various reviews and a "real life test" which I found on the Internet showed that for my application (I do not play on the PC), the difference is marginal. The few 4-5 seconds, which would drive up the system faster, I use for a view from the window ...
All in all, I do not want to miss the SSD - the question remains whether the more favorable 840 EVO would not have done ... but the 10-year warranty from Samsung to show me how much the manufacturer trusts himself for me. This played a key role in addition to the many reviews.