Could a PSU be the problem for my stuttering in games?

lexaap4

Prominent
Nov 17, 2017
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Since the upgrade from a RX 480 to a GTX 1080 I'm stuttering in CoD WW2 and GTA V, CPU usage is always at 90-95%. My PSU was a Xilence performance 600w and is now a Xilence performance 700w.