House lights flicker? Caused by PSU?
My house lights flicker when I turn on my pc and at random occasions. Is this something to worry about? Is it my PSU or is it the wiring in the house?
Last edited by Yukari The Alpaca; Oct 12, 2017 @ 8:59pm
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Wiring or supply to the house 🏠 obviously.
ugafan Oct 12, 2017 @ 9:07pm 
Originally posted by Gordy Freeman 🇦🇺:
Wiring or supply to the house 🏠 obviously.

or a ghost. but seriously, call an electrician. it could be a fire hazard.
CursedPanther Oct 12, 2017 @ 9:10pm 
House lighting and socket AC power should be on circuits independent of each other in the first place. Unless you're talking about desk lamps, it sounds like something is very wrong with the wiring.
Last edited by CursedPanther; Oct 13, 2017 @ 2:20am
Yukari The Alpaca Oct 12, 2017 @ 9:22pm 
I also hear a click sound from my PC when it happens, but the pc itself seems unaffected.
Arya Oct 13, 2017 @ 1:26am 
Can you provide a little extra detail? What make/model of PSU you're using would help, as would the type of CPU and Graphics Card.

I'm drawn to think it's a problem with the wiring of your house rather than the PSU, but more info will help us narrow down on what's actually happening.
Yukari The Alpaca Oct 13, 2017 @ 1:48am 
Originally posted by Wolfıe:
Can you provide a little extra detail? What make/model of PSU you're using would help, as would the type of CPU and Graphics Card.

I'm drawn to think it's a problem with the wiring of your house rather than the PSU, but more info will help us narrow down on what's actually happening.
EVGA 1200watt PSU
Geforce GTX 980ti
Intel Core I7 4790k
Seven7 Oct 13, 2017 @ 1:48am 
It's electrical wiring, it's made in violation of the standard: lighting, sockets for household appliances and sockets for computers must be separate lines with their automatic circuit breakers and protective devices, or the circuit breaker does not match the load
It also happens if radio switches are used for lighting, or cheap LED lamps are used, they do not have a flicker-free circuit that eliminates flickers

it is necessary to make a scheme for connecting the entire apartment / house, check that the wire have required section is used everywhere, there are no aluminum inserts in the copper wires, wires not clamped with the contact clamps
calculate loads by power and resistance

if the wire size is not enough and there is no way to replace all the wiring, make a separate line for the computer using a double insulated wire and call an electrician to install a separate circuit breaker only for this line, 16A should be enough
Last edited by Seven7; Oct 13, 2017 @ 1:52am
Rumpelcrutchskin Oct 13, 2017 @ 2:10am 
Most likley wiring or circuit breaker issue.
I had same kind of problem once, it turned out that the circuit breaker socket bolt that goes against automatic fuse had become little loose and caused the socket to overheat.
Called the electrician, he took the socket off and fastened the bolt behind it and it was fine.
Best to call electrician and let him take a look at your fuse boxes and wiring.
rotNdude Oct 13, 2017 @ 9:22am 
You have a 1200W PSU connected to a circuit that may only be rated 15A on the breaker and associated wiring. You need to check how much load is on that circuit without the PC. Either call an electrician or buy a clamp on ammeter to measure the load.
Blaagh Oct 13, 2017 @ 10:08am 
you make it sound as if the psu will actually run 1200W .. it does not
hawkeye Oct 13, 2017 @ 11:51am 
Could be caused by a low quality power board. The good ones have on/off switches on each socket and good overload cutoff.

When the psu is turned on it might peak momentarily which could be the clicking noise. If you do turn on the psu itself you might want to leave the psu always on but use a power board as the on/off as this will reduce wear and tear on the psu switch.

Try to reduce the load on that wall socket e.g. leave the monitor off until the pc is on. Don't have heaters etc plugged into the same socket.
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Date Posted: Oct 12, 2017 @ 8:51pm
Posts: 11