4-Pin ATX on 8-PIN Gigabyte B250M D2V

[olosen123]

Hello! I want to upgrade my rig by buying a new mobo(Gigabyte B250M D2V ), ram and cpu.
The problem is that my old mobo(gigabyte ga-g31m-es2l) only had 1 4-pin ATX 12V same as the PSU provided, only 1 such cable. The cpu I was using was a q6700 that ran just fine. My question is, can I use only 1 4-PIN ATX 12V from the PSU to power the new cpu(I5 7400 3Ghz)?
Also my PSU is techsolo tp-550 blue

[ElectroStingz]

Hello,

For the new board an 8pin EPS power connector is required.
Also ATX standards have changed over the years so your TP-550 PSU may cause issues with the new board.
Startup and low standby voltage regulation come to mind.

For the best possible outcome, replace the PSU too.