[SOLVED] PC makes a disconnect sound every time I turn on the room's fan or lights.

[Jacob 51]

My PC makes a hardware disconnect sound randomly when I switch on the fan or light in my room.

This is quite strange. The mouse backlight also turns off for a second, like its been disconnected.
No wires are being pulled. That's for sure, but everytime its the mouse, and not any other component.

There is no change in the display.


Specs:

Core i5 3470
Zebronics H61
12 GB DDR3 1600 MHZ RAM
Coolermaster Bronze V2 MWE 450 watt (this PSU might be cheap but I am not overclocking or using big graphics cards so it is okay for me.)
GT 1030 EXOC Galax DDR5
Zebronics Transformer mouse
Redgear GRIM backlit keyboard.
1 TB WD 7200 RPM HDD.
Adata SU 240 GB SSD

 

[chaoyang]

Could it be poor wiring in your room?

This may have caused unstable fluctuation among your sockets when you switch on the light or fan in your room, as well as using other electronics connected to power sockets.

 

[Jacob 51]

Could it be poor wiring in your room?

This may have caused unstable fluctuation among your sockets when you switch on the light or fan in your room, as well as using other electronics connected to power sockets.

If that is the error, then its a big problem.
But there is no difference in the display.

 

[scout_03]

get this https://www.amazon.com/Receptacle-T...&keywords=outlet+tester&qid=1627491562&sr=8-9 aand test all outlet with by switching the light or fan on they might be all on the same breaker and it trip off.

 

[Jacob 51]

get this https://www.amazon.com/Receptacle-T...&keywords=outlet+tester&qid=1627491562&sr=8-9 aand test all outlet with by switching the light or fan on they might be all on the same breaker and it trip off.

Can I use a multimeter instead?

 

[scout_03]

you could but wont tell you if outlet have false ground or inverse wiring .

 

[InvalidError]

There are only three ways I can imagine where the mouse could possibly be affected by the light switch:
1- EMI from the light turning on causing the mouse to malfunction and reset itself, which indicates either an exceptionally poorly designed or defective mouse
2- the mouse is plugged into a self-powered hub and the lights turning on/off generate enough noise to make the USB hub act up, causing it to reset
3- the computer PSU acting up when the lights get turned on/off enough for 5V to go sufficiently out-of-spec for the mouse to reset itself, though I would expect this to cause system-wide problems, not just the mouse

 

[revodo]

Sounds like a really bad wiring problem with the house itself.

 

[Jacob 51]

Hey, guys, I forgot to mention that this never happened in my older PC.

 

[InvalidError]

Hey, guys, I forgot to mention that this never happened in my older PC.

You have new components, one of them must be more sensitive than your old stuff or possibly defective.

 

[Karadjgne]

Multimeter will work. Use set for AC (that's V with the ~) put one prong in the ground and pick any slot. In one you should get roughly @ 120v, the other should be zero (ish). Then change the multimeter to continuity (ohms symbol on some) and any digital multimeter should bleep at you and read almost zero.

If the only way you get 120(ish)v is by both slots and not the ground, that's most likely your issue, backfeed on the neutral from the light. Especially common in older, cheaper housing put together by electrical helpers working by the piece/job who don't care about issues.