Two motherboards died ( each lasted a year )

[youssef13]

Hello,
Before a year, My motherboard ( GA-P81-D3 ) is dead and the power supply is also dead ( Cooler Master 500 watt ).
I changed the power supply to Gamma 350 watt and sent the motherboard to warranty.
The motherboard needed a month or two to repair so I bought a new motherboard ( GA-H81M-S2PT )
Now, The motherboard is died again but this time, the Graphics card is also dead.
This is my PC specs
Graphics Card: Nividia GeForce GT 730 ( 2GB )
RAM: Kingston 4GB
Processor: Intel Core i3-4160
HDD: 1TB

What may cause the motherboard to die two times and each time it takes another part ( first time PSU, second time graphics card ) ?

 

[zoltan.boese]

I suspect you are using cheap unreliable power supplies all the time. PSU can be the problem.
http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html

 

[youssef13]

I suspect you are using cheap unreliable power supplies all the time. PSU can be the problem.
http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html

I used PSU calculator and the 350watt is good for my PC specs, so my PC doesn't need much power. and even if 350watt isn't enough, what about the old 500watt cooler master ?

 

[zoltan.boese]

I suspect you are using cheap unreliable power supplies all the time. PSU can be the problem.
http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html

I used PSU calculator and the 350watt is good for my PC specs, so my PC doesn't need much power. and even if 350watt isn't enough, what about the old 500watt cooler master ?

It is not about the wattage it is about build quality, the PSU´s ability to suppress ripples and output a stable voltage.

 

[youssef13]

I suspect you are using cheap unreliable power supplies all the time. PSU can be the problem.
http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html

I used PSU calculator and the 350watt is good for my PC specs, so my PC doesn't need much power. and even if 350watt isn't enough, what about the old 500watt cooler master ?

It is not about the wattage it is about build quality, the PSU´s ability to suppress ripples and output a stable voltage.

Does this mean that Cooler Master & Gamma power supplies quality isn't good and doesn't output stable voltage ?

 

[grmnlxndr]

Do you have some Power issues at your place? It seems more an issue of your electrical connection.

Best regards

 

[youssef13]

Do you have some Power issues at your place? It seems more an issue of your electrical connection.

Best regards

How can I determine that ? What power issues it might be ?
I don't have any problems with other home appliances working here ( TV, water heater, washer, .... )

 

[evongugg]

Test the outlets with an outlet tester.

https://www.grainger.com/search?searchQuery=Tester+Receptacle+and+Gfi&cm_mmc=PPC:+MSN+PPC&s_kwcid=AL

Make sure the circuit is not overloaded. E.G. 15 amp circuit runs no more than 12 amps.

 

[zoltan.boese]

Shouldn't the PSU serve a a surge protector? Are electrical network issues so deadly for the supply at 110V?