[Vlada011]

It is understood, of course first try second reserve 100% working PSU(all gamers and PC enthusiasts need second good PSU in house), one DIMM of memory same proven working, some other graphic card, maybe HDD than can talk about new motherboard.
Good is if somebody in crew have same platform like yours, 1155, 2011, AM3, AM3+ and than you can try all kind of options.
Motherboard with LCD can help if you look temps, during games, CPU, GPU usage, example if you use graphic card and she work on 70-90% and than always during freezing you see jump on 100% GPU Usage and stay there but you can remove options in LCD you can first check graphic card, without LCD you can't know that... but if freezing during idle and not 3D at and keyboard is stuck too than something other can be cause...