Computer making circuit breaker trip

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SomeRandomGamer

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Sep 28, 2014
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Hello, today the circuit breaker keeps tripping when I'm using my computer. It is a 20 amp circuit. I haven't anything extra plugged in that I usually wouldn't have, and it has never happend before. The only things plugged in are my computer, monitor and powerline adapter for the internet. I've also being having 100% CPU usage (steam is using 60% and csgo uses another 30) I don't know if it is related or not. There is only one wall socket in my room and everything is plugged into an extension lead. Does anyone know what could be causing this?
 
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elbert

elbert

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Jan 11, 2005
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First make sure your PSU doesn't have the 220v slider set wrong. It should be on 110v for the US. Not see models with this in a while but worth a mention. Second could be motherboard is grounding on your case. Try unbolting the motherboard leaving everything connected. Set the motherboard on the motherboard box so it cant ground. Try running your system. If it works then you may need plastic standoffs to stop the grounding issue.
https://www.amazon.com/10-sets-M3-nylon-standoffs/dp/B00C0Q53EA
 
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SomeRandomGamer

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My PSU doesn't have a 220-110v slider, but the computer has never done that in the 2+ years I have it so it could hardly be the mobile grounding. Also I forgot to mention it works for 20-30 minutes before it trips the switch.
 
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elbert

elbert

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Jan 11, 2005
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That is a very odd issue. Try your PC in another room not on that breaker. If it works right in on another breaker I fear it could be a substandard home wiring issue. Electricians may have used 10-2 wire to the first outlet then weaker wire connect other outlets in the room to cut costs. Check the outlet for scorching.
 
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SomeRandomGamer

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Well I live in a very big and old house and there are two circuit breakers for the whole house. In our side, each room has a different trip switch (and a few extra for the shower and other stuff) and the switch for my room gets tripped and the only stuff plugged in are the stuff mentioned in the OP. My PSU is a Corsair vs450w. I'll try and find a different extension lead to use. Sometimes I have an electric heater plugged in but that never tripped it and I didn't have it plugged in today.
 
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USAFRet

USAFRet

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Either that extension cord, or the whole house wiring.

The fact that it worked last week does not negate the possibility that it does not work this week.
Stuff goes bad over time, temperature changes, etc, etc.

Everything works 100%, right up until the moment it doesn't.
 
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SomeRandomGamer

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It wasn't the computer. I only have one wall socket in my room (with two plugs) so everything was on an extension lead. Said extension lead had another extension lead on it with my computer, monitor ps4 and internet on it, as well as an electric heater. The plug of one of the extension leads was cremated, causing the switch to trip.
 
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USAFRet

USAFRet

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I'm pretty sure the user manual for that electric heater specifically states:
"Do not use with an extension cord"

Why?
Draws too much current, melts the cable or bits inside....poof,....tripped circuit breaker.
 
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