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Electric fluctuation in my computer

8 posts · originally from https://geek.digit.in/community/threads/electric-fluctuation-in-my-computer.182797/

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gopi_kgk Original post #1
Apr 13, 2014 at 11:49 AM
There is electric fluctuation in my computer. It started 5 months ago. The speakers connected to my computer, my keyboard, my controller all usb connections disconnect and reconnect by itself. Dont know if its motherboards fault or PSU . I changed psu from 450w to 500w but there was no change. And last month my motherboard got damaged and i repaired it hoping that this would reduce the volatage fluctuation. But it started happening after 2 weeks again changing the motherboard. I don't overclock or change any bios voltage settings. My pc configurations are i5-2400, 500w psu, gigabyte h61mds2, cooler master fan, two internal hard drives(2+1),4 gb ram,gt 630 graphic card,1 cd drive and one system fan. What is the problem? Should i buy new psu or motherboard? i have ups to give power backup . Is it fault of ups? or is it in electric circuit of my house?
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whitestar_999 #2
Apr 13, 2014 at 2:37 PM
you mentioned everything else but didn't post the two most important things:brand & model no. of psu & ups.
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gopi_kgk #3
Apr 13, 2014 at 4:28 PM
Mikrotek ups and a local psu of 500w..not a branded one...not sure if psu is the problem as i changed it from 450 to 500 and the fluctuation still happened
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whitestar_999 #4
Apr 13, 2014 at 4:51 PM
fluctuation or not using a cheap desi psu to run an i5 system is like putting iphone 5 in a Rs.100 mobile cover from local mobile shop.try testing with another ups & if there is voltage fluctuation in mains then you will notice it in dimming of household lights.
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gopi_kgk #5
Apr 14, 2014 at 10:46 PM
whitestar_999 said:
fluctuation or not using a cheap desi psu to run an i5 system is like putting iphone 5 in a Rs.100 mobile cover from local mobile shop.try testing with another ups & if there is voltage fluctuation in mains then you will notice it in dimming of household lights.
Click to expand...
can you please suggest a nice psu with suitable watts to support my system
icebags
icebags #6
Apr 14, 2014 at 11:36 PM
check home earthing, then it could be either of motherboard / psu prob.
nomad47
nomad47 #7
Apr 15, 2014 at 10:11 AM
I think antec VP 450 or 550 will cut the job. Use an online wattage calculator to calculate your power requirement and decide
bssunilreddy
bssunilreddy #8
Apr 15, 2014 at 10:22 AM
Antec VP550P @ 3600 is best for your requirement.