I have asked lots of people including electricians and nobody has been able to explain it so I though I would try a greater audience. I have my computer pluged into an expensive surge protector but I keep blowing the power supply in the computer. About 6 in the last year. They have done everything at the computer repair place they can. I have a spare pluged in now with no problems so far. Some electricians claim it is loose neutral at the panel. I don’t have a lot pluged into that circuit.
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Did the electricians who suggested a bad neutral actually check your line, and why wasn't anything done? Cheap PC power supplies do have prety high failure rates, but 6 in a year sure is a lot, have you tried a premium supply? Any chance the supply is under rated for what you have in your PC? No problems wit anything else on the surgep protected circuit? I wonder if your surge protector isn't causing the issue somehow. Not much help but...
PaulB
you might be picking up your neighbors electrical problems, with transients coming into your house through the grounding conductor for your service.
surge protectors only protect against spikes on the ungrounded conductors, and nobody makes a protector for this problem because of the way MOVs protect in the circuit.
there was ONE mfr. but I haven't seen their site in a long time
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, wer ist jetzt der Idiot ?
The chances of 6 power supplies being defective is usually slim, unless you have been getting them at the same place and they are just lousy power supplies. Or they could be way under sized. Maaybe time for a new pc.
Have you measured your voltage at the outlet?
I would forget the surge protector and get a little UPS. A UPS will have surge protection in it and also will protect against intermittent supply from your outlet.
I would get a UPS on that computer. You are likely having this problem from low voltage to the computer and not high voltage. I would also look at increasing the size of the power supply. If it is undersized it is working as hard as it can but just burns it's self up. Todays computers with all the add on cards for video and sound can really pull some power.
You need to check the line voltage on that outlet.