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Computer restarts when voltage fluctuates

18 posts · originally from https://geek.digit.in/community/threads/computer-restarts-when-voltage-fluctuates.148635/

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rahulkb Original post #1
Nov 11, 2011 at 2:23 AM
hi people.
i have a very big proble, with my computer for past 2 months...
it restarts almost more then 5 times in an hour due to voltage fluctuation...
i bought a new V guard stabilizer and also iball UPS-600v. yet the problem remains...
My system config is
Huntkey SMPS - 600V
2*1 TB HD SATA
1GB NVIDIA Graphics Card
Gigabyte Motherboard
Core 2 Quad Processor
23" Samsung LED Monitor.

i have connected my monitor,speakers and the UPS to the stabilizer. and i have connected the CPS to the UPS......
can someone please give me a solution to solve this problem...
i have a bad power fluctuation problem here...
Please help...
A
agyaat #2
Nov 11, 2011 at 1:57 PM
1. Check if the earthing thing is intact, or if it is installed at all !!

2. If (1) is 'no' some thing in the mobo could have gotten messed up.

3. Is the electricity department doing some works around the place?
sriharsha_madineni
Nov 11, 2011 at 2:00 PM
Are you saying you connected ups to a stabilizer??

If yes, then the time delays of stabilizer & UPS while switching modes, are adding up & hence the chance of restart.

Also, is your home equipped with a inverter/UPS?
mithun_mrg
Nov 12, 2011 at 8:55 AM
i doubt its due to the psu/smps can u post what gpu u have
1GB NVIDIA Graphics Card
digibrush
Nov 12, 2011 at 10:51 AM
I had same problem... solved after changing psu. :)
d6bmg
d6bmg #6
Nov 12, 2011 at 6:16 PM
Main reason of the problem:

i have a bad power fluctuation problem here...

Secondary reasons:
1. Your psu. :cry:
2. iBall ups is bad.
0
Nov 20, 2011 at 2:32 PM
Your PSU and the iBall UPS are horrible products. Get a decent PSU and all your problems will be solved.
A decent PSU can take voltages between ~100V to ~265V so the fluctuation won't be a problem.
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rahulkb #8
Nov 21, 2011 at 4:03 AM
thanks for the comment
what PSU do u suggest for my system's configuration?
d6bmg
d6bmg #9
Nov 21, 2011 at 11:48 PM
FSP SAGA II 500W

But first answer: what is the exact modesl of your 1GB nvidia graphics card?
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agyaat #10
Nov 22, 2011 at 3:29 AM
Hey, if you do suspect your PSU to be the fault or find it to be the case, check thoroughly for any physical burns it might have left on the mobo. I lost one of the mobos that way. One of the 4 cpu pins was burnt.
Cool Buddy
Nov 22, 2011 at 3:00 PM
I think changing the PSU should solve the problem.
Happened often with me when I had a generic PSU. Everytime there was a power cut, the computer would switch off instantly. But when I got Corsair CX400, the problem was solved.
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rajeevk #12
Nov 22, 2011 at 3:38 PM
I had faced the same problem some days ago. Now I am using a UPS and it is working fine.
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rahulkb #14
Dec 12, 2011 at 3:36 PM
hi guys
thank you all for ur valuable inputs..
i have changed my PSU and system is working fine...
thanks a lot for spending time to solve my problem...

Regards
Rahul
gautam_dey66
Jun 14, 2012 at 10:10 PM
Currently I m facing the same problem too, and i also have a generic psu (Supercomp 450 watts), taking advice from all i'll change my psu asap.
I'll let you all know if changing psu works for me or not.
P.S. thanx a lot guys.
d6bmg
d6bmg #16
Jun 14, 2012 at 11:20 PM
Currently I m facing the same problem too, and i also have a generic psu (Supercomp 450 watts), taking advice from all i'll change my psu asap.
I'll let you all know if changing psu works for me or not.
P.S. thanx a lot guys.

Please post only the thread you created about problem. Don't unnecessarily bump old threads.
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Minion #17
Jun 17, 2012 at 10:55 AM
don't use you pc with stabiliser use only with ups you will be fine.
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smithrick #18
Aug 22, 2012 at 10:38 PM
I suggest you to buy one UPS and just plug all the system pins in UPS and start your system through UPS. I hope it will not again restart.