Nothing happen when I press the power button on my PC

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poltron

poltron

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Aug 18, 2014
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Hello, I was playing diablo and LoL yesterday and all of a sudden my computer went off. No fans were working, no sounds, no beep and all and when I try to push the power button it doesn't power the PC, I checked the cables and everything seemed okay...

(I want to mention that this is not a overheating problem)

Also a long time ago my pc was turning off by itself at random times and it was restarting by itself.

I also had 2 times the BCOD...

Maybe important: A week ago, my PC turned off randomly quickly restarting by itself, right when i entered my password on windows, it closed and i wasn't able to power it again, I waited like 2-3 hour and I randomly pressed the power button just by any case if it was working and it was, now my PC doesnt want at all to power.

Specs ( I will try to be specific but i cant see it on my computer...)
MB: MSI z87 g43
CPU: intel core i7 4770k
GPU: EVGA Nvidia GeForce 770 2g
RAM: Corsair Vengeance 2x16g
Operating System: Windows 7 64 bits professional

Thanks
 
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Ironsounds

Ironsounds

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Jul 31, 2011
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Hello... All my experience with BSOD is due to a Hardware communication, interrupting between the MB and Windows.
1) Make sure you have no un-happy hardware drivers in your "Device Manager"... No Yellow or Red icon indicators
2) Clean all card/stick edges with rubbing alcohol... And Re-insert cards.
3) Inspect and clean all DATA and Power connections... to your Hardware and MB.
4) Verify all devices CPU/GPU/MB temperatures are with in Normal operating temperatures.
5) Verify your Power Supply 12Vdc has enough current , To operate your Video Card and CPU, at the Performance setting you are using.

A quick fast test, would be try one stick of Ram at a time.

A quick fast test would be to Boot without your Graphics Card using the IGT of your CPU
 
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poltron

poltron

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Can you explain how could this be a PSU problem ( I am not very familiar with PC's) Corsair Builder 750W 80+ Bronze Certified ATX Power Supply... Thank you
 
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poltron

poltron

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Corsair Builder 750W 80+ Bronze Certified ATX Power Supply ( Thats what looks like a familiar PSU)

In my PSU box it says Corsair CX 750M Modular ATX power supply ( Maybe the same thing idk)

Thanks
 
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poltron

poltron

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IF it is a PSU problem, should I get a new one, identical or should I upgrade to 850W, because I would contact corsair to see if they can replace it... At first i tought it was my windows, then i tought it was a faulty RAM stick, but now i have the feeling that it is the PSU since nothing happens, I unplugged everything, left 1 stick of ram, nothing, no power, no fan, no beep, cold silence... At least I paid my computer myself, I would feel bad if my parents had contributed ;-;
 
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poltron

poltron

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My pc is like 4-5 months old, and my warrenty with whome I bought it ( online ) is over
 
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lp231

lp231

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Yeah, try that and a different power cord if you have.
If you just bought it for 4-5 months, then it's still in warranty. I believe Corsair PSU have a 3 year warranty, depending on the model, even if it's only 1 year warranty, you had it for less than that so it's not out of warranty yet. Online vendors only take care of it within 30 days, after that you have to contact the manufacture.
 
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poltron

poltron

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The thing is, I really really dont know how to get another one for free, ( Should I change the PSU for a higher one, like 850w if the one i had broke ???) and they ask, on corsair website, the part number... I dont know it, it's not written on my psu box

 
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lp231

lp231

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Look at the PSU itself. The other problems is you're not even sure it's the PSU itself that's causing the problem. We assume it's the PSU as your system can't turn on, but other components that's shorting might be the cause of it. Who knows probably a faulty power switch, bad ram, defective USB keyboard, faulty USB header, etc.
 
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poltron

poltron

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its not the usb thing, it may be a bad ram issues but i can't even start the computer with no usb connected plus 1 stick of ram...
 
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lp231

lp231

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The computer does not need a USB connected to power up. Your problem is, when pressing the power button nothing happens.
So remove that stick of ram and see if it at least powers up, like the CPU fan spins or not. It it powers up, there will be no screen and the board might beep because there is no ram.
 
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poltron

poltron

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Nothing happens with 1 stick of ram, no fans, no screen, no beep
 
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Andy MacLeod

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Contact Corsair. They usually provide a 5 year warranty. Their products advise you to contact them in preference to your retailer. It is in their interest to solve your problem as they will want you to buy other products in the future.
 
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poltron

poltron

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The thing is, I just want to be sure it is the PSU, like... If they give one back and my computer is still not working... Do you know any thing that can causes the PSU to die ? Because if mine died, should I go for a higher one like 850w ???
 
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Andy MacLeod

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Disconnect your psu from your motherboard and components. Switch on your psu using the switch at the back. If the psu fan does not start spinning, then it is damaged or dead. (Some power supplies have a zero rpm mode when unloaded but I believe your particular model does not).

If your psu fan does start spinning, it could still be damaged but seem to be working when unloaded.

PSUs are one of the hardest working components in your PC. They're one of the most likely components to fail. Mine also died recently. A year ago, my father-in-law's psu also died...

You do not necessarily want to have a more powerful psu. Many people think that higher wattage is better... but this is NOT true. You need to figure out how much power your PC components will actually dissipate and buy a psu that is no more than twice that wattage. Corsair PSUs typically have a peak efficiency at 50% load.

If your PC components have, for example, a max power of 400W, then a first rate 600W PSU would be a better buy than an 800W poorer quality power supply. The only reason why you might want to go for a higher wattage is if you intend to add more components or upgrade your existing components to more powerful models.
 
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poltron

poltron

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That seems clear but I looked on on internet and my nvidia gtx 770 will go up to MAX 600w and I have max 750
So I am really not sure what to do here

Also, if 2 days ago if I would have only went on FB or youtube, it wouldnt had power off...It only did that when i was playing like 2 games at the same time while talking on skype, so that leave me to think that my wattage is not high enough??? Maybe I am wrong, i don't really know what wattage my components use

 
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Andy MacLeod

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