I was playing a game the other day and my pc shut off. It did not turn on, but power was going to the mobo because it has led lights on it. The problem was the power cable, so changed it and the pc started again. However my pc is underperforming, i cannot run games as well as i could before. Could it be the new power cable or the psu got damaged?
closed as not a real question by slhck♦ Dec 13 '12 at 21:10
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, see the FAQ.
The idea of a bad PSU making a computer run slower without breaking things is... implausible. Bad PSU's break computers all the time, but I can't imagine how they would only make the computer run slower and I've never heard of it happening.