Power supply crash

[Mathyus]

Hello everyone,
Week ago, I played Left 4 Dead 2.
Then, suddenly, electricity in whole house fell down, including my PC too.
I couldn't turn it again on, repairer told me that it's power supply that's broken and crashed my PC.

So, what was wrong? Game or power supply? What happened? Is something wrong on my PC build?

Additionally, giving my PC spec.
CPU - Intel Core i5, 4690K - 3.5GHz
PSU - CoolerMaster G750M - 750W
GPU - MSI NVIDIA GeForce 970 GTX - 4GB
Motherboard - Gigabyte Z97-D3H
RAM - Kingston 8GB KIT DDR3 1600MHz CL10 HyperX Fury Blue Series

 

[Phillip Corcoran]

A corrupted or crashed game would no way prevent the PC being powered up.

Why don't you want to believe the repairer? Sounds reasonable to me, it's definitely a hardware issue, and the PSU has to be the prime suspect where a dead PC is concerned. Check that out first.

 

[Mathyus]

But, what could crash my power supply? Couldn't it be the game?

 

[Mathyus]

And still one question on my mind, what could make my Power Supply unusable?

 

[Phillip Corcoran]

Power supplies don't "crash". Windows can crash, as can applications and games, but not the PSU.
The PSU can fail, sometimes caused by a power-surge when power is restored, especially if it's a cheap, low-quality one.
if your PC is dead, you need to try a new PSU first.

And make sure your PC is plugged in to a surge-protected socket. You can buy a surge-protected power strip from Amazon or in PC shops.

http://www.amazon.co.uk/s/ref=nb_sb_noss?url=search-alias%3Dcomputers&field-keywords=surge%20protected%20power%20strips

 

[sora]

Hello everyone,
Week ago, I played Left 4 Dead 2.
Then, suddenly, electricity in whole house fell down, including my PC too.
I couldn't turn it again on, repairer told me that it's power supply that's broken and crashed my PC.

So, what was wrong? Game or power supply? What happened? Is something wrong on my PC build?

Additionally, giving my PC spec.
CPU - Intel Core i5, 4690K - 3.5GHz
PSU - CoolerMaster G750M - 750W
GPU - MSI NVIDIA GeForce 970 GTX - 4GB
Motherboard - Gigabyte Z97-D3H
RAM - Kingston 8GB KIT DDR3 1600MHz CL10 HyperX Fury Blue Series

Maybe the power supply is failing or something... Or there was a power surge like the previous poster Phillip Corcoran stated.