Thanks for the reply Ourasi, could you maybe explain me a it more in detail?

-I tryed hdderase and i selected option 4, i could only select 2 and 4, number 1 and 3 werent available.
As it started t said somethink like "writing random data" but it never went any further then 0% so i canceled that run with the hope the drive was still alive and thankfully it was.
So i got a bit scared of hdderase and i didnt try to use it anymore.
Did i use the wrong option ?

- Is GC/Defrag build in the firmware of the Intel SSD or is it something else?

- Your talking about updating the ICH9R, could you maybe link me to a guide or explain me how? Hopefully this wont scare me either.

Ill sure turn of Write-Back Cache when im back home, as for the other things i hope you can help me out.
ATM i feel it a bit like that these 400€ are my worst invested Euro's ever.

Cheers