Computer shuts down. Hearing wheezing from PSU before shut down

JakFudo · Feb 2, 2014

When playing intensive games my computer will shut down entirely. Before shutting down I will hear a wheezing sound coming from the power supply. It is a G series 850 watt gold certified power supply. Its really started to inhibit what I want to do with my pc. When I try and overclock it shutsdown. When I try and max games;it crashes. My specs are as follow:
GPU: Zotac 780
CPU: i5 4670k 3.4 ghz
Heatsink: Noctua NH-D14
SSD: Samsung Evo 250gb
HDD: Seagate Barracuda 7200rpm 1tb
Mobo: Asus Maximus Hero
PSU: G Series Lepa 850 watt gold certified power supply
Case: Black Matte Windowed Edition Phantom 630

Any advice? I've sent 2 support tickets to Lepa for help with no response.

chrisso · Feb 2, 2014

DO NOT USE THE PC UNTIL YOU HAVE REPLACED THE PSU!

JakFudo · Feb 2, 2014

chrisso :

Thats not very helpful.

chrisso · Feb 2, 2014

I dont understand what you want me to say.
O.K, i will explain it a bit. Your power supply unit is failing so badly it shuts down when you use the pc for intensive tasks. A cheap or defective power supply can destroy all the components in a pc case.
The motherboard, cpu, graphics card, ram and harddrive plus anything plugged into the SATA ports are at risk.
Look at it another way; would you sit in your chair watching a film if smoke started to poor out of your T.V. or would you turn it off?
The advice I gave you is the best you will get
(buy another power supply unit PRONTO) and if you took a pole of that across every member on this forum they would agree with me.
The only magic bullet you will find is $'s.
Buy a new power supply, you are risking your computer.

chrisso · Feb 2, 2014

http://www.amazon.com/s/ref=nb_sb_ss_i_2_7?url=search-alias%3Daps&field-keywords=xfx%20650w%2080%2B%20bronze%20certified%20semi-modular%20atx%20power%20supply&sprefix=xfx+650%2Caps%2C869

This may be a smidge over rated power wise, but you are running a shed load of $'s there. This is what I would use for your system.
If you are planning to expand to 2 gtx 780's get the 850 watt version.

Dark Lord of Tech · Feb 2, 2014

All great components except the supply , if it's making more noise when it's stressed it's not a good sign , the power supply sounds like it can't handle the load.

Your using the right range in wattage , just a poor PSU.

Recommendation: New supply to protect your other components.

chrisso · Feb 2, 2014

http://www.eggxpert.com/forums/thread/323050.aspx

It isnt listed here, but that is beside the point. If it is making 'wheezing' noises and shutting down, its finished. Best not risk several 100 $ worth of parts.
(Quick recount; nearer a 1000 $ worth,actually).

JakFudo · Feb 3, 2014

chrisso :

Except my PC is stable when playing several games on max settings with no stability problems. I got the Lepa power supply on sell for 85 dollars from NCIX US. It usually costs around 160-200 dollars. I don't think that its the brand that is bad. I also checked that PSU tier list before I bought it. And I read several extensive reviews before buying it. I've sent 2 RMA's with no response.

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Computer shuts down. Hearing wheezing from PSU before shut down

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