Alexandrei :
What kind of gpu can i buy for my mobo?i dont have connectors in my psu to pcie slot. Is it safe to put a gpu without that?because some people says i need 6pin to put a gpu.
Unfortunately, since you do not have a extra connector for power, you need to get one that does not require one. If you try to adding a new graphics card that needs more power connections, and you don't have them, it simply won't boot.
EVGA GeForce GTX 1050 Ti SSC For $163
The GTX 1050 Ti will be the strongest you can buy without requiring an extra connector.