Vlad Boerescu :
aceasta este : http://www.pcgarage.ro/surse/chieftec/super-cft-750-14cs-750-w/ . Cred ca problema este la PCI-e deoarece placa mea video este PCI-e 2.0 si eu am pus-o pe PCI-e 3.0
I checked the manual and you can change in BIOS which generation of PCI-e graphics is used: Miscellaneous --> PEG Gen3 Slot Configuration --> set to Gen2 (the default setting is AUTO).
While in BIOS, check also the voltages, +12V especially (your PSU is a little bit old, maybe it is not in the best shape anymore).