If the GPU attracts 75W or much less you don’t need to have more electricity with the PSU. In actual fact, In case you have a GPU that’s between 75W and 120W you’ll be fine using the stock PSU (280W for G2 Minitower). For what it’s worth, this storage capability https://driverhp600g143108.blogolize.com/details-fiction-and-prix-processeur-intel-core-i5-67254668