Hello till now I was with I5 3470 cpu blow up and now I have to replace it with new one, and now I decide to buy I5 4690k with GIGABYTE Z97P-D3 I know there is better motherboards but I cant afford more now so my question is with this motherboard can i overclock this cpu in future not now and I don't want some big numbers here and next question my GPU is EVGA GTX 970 SC i have 2x 8 GB kingston 1600mhz and 120GB SSD Kingston Hyper X my old pc works with 600W psu will I need a new one or the whole system will work fine thank you and sorry for bad English.