Why do my computer's power supplies keep dying?
March 23, 2009 3:45 PM Subscribe
My desktop computer's power supplies (three thus far) keep overheating and then fail permanently -- but only when they are plugged in through a power strip (i.e., everything is perfectly fine when the computer is plugged directly into a wall outlet).
posted by astrochimp to computers & internet (13 answers total)
I finally realized that solution, though have no idea as to why it should make a difference. That is, if not plugged directly into an outlet, any power supply (PSU) in my computer will, within a few hours, overheat to the point of failure and, from that point on, will be non-functional for the rest of eternity. This has me befuddled, and so I ask:
Is this (a) a short and/or (b) a grounding issue? Or, more to the point: (c) why would the addition of a power strip [power bar] have such a negative impact, even if it is one of these issues? Do power bars ground things differently (I know nothing about these things)? (Also: this has happened using different power bars, so I'm assuming that it was not those particular power bars per se, but that it has something to do with power bars in general, plus the electrical oddities of my desktop computer.)