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PSU general question

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UnfaTeFuL

Limp Gawd
Joined
Jun 23, 2002
Messages
460
This is just a a general question. Can a PSU go bad one day from another? As in, worked 100% yesterday and the next day started to have power problems. Without any physical contact,, IE hammering the comp, dropping it, etc..
 
In the field of electronics, it's always possible although quality control tests dictate that this anomaly should not happen often. That's why factories perform strict compliance and performance tests to ensure a healthy and normal everyday function.

The only real extremity I can see that would spontaneously cause a PSU to stop function is the overheating of a capacitor, resistor, or other electrical circuit element that would cause a shorting out. Said devices can only handle so many amperes of current and watts of voltage before their operation fails.

Dark Assassin
 
Did you have it running through at least a surge protector? The PSU will still have power to it even if the comp is "off", unless you have the switch on the PSU's back turned off.
 
It's more about the probability of that happening than the possibility. Yes, it's possible, no it's not likely to just die without showing some signs of death before hand.

This may sound dumb, but have you checked the voltage selector and/or power switch on the back, along with all connections. Shorts can cause said behavior as well, like perhaps a dropped screw.
 
Its also possible to be fed crap power through the mains and as a result the PSU may not perform up to scratch.
 
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