So I've recently upgraded my whole pc which includes the PSU and GPU. Every time I play BO4 or an intensive game, 30-45 minutes in, my pc decides to just black screen and reboot. After I stress tested my CPU and memtest86'd my RAM, I figure those are not causing these issues. I also kept an eye on my temperatures when playing the games and the gpu and cpu never went above 70. Now that I have these 2 left, which one is more likely to culprit? Could it somehow be the mobo? Also Whenever I use "fast tuning" on my cpu in the bios, the game crashes faster. But even with default bios settings, it still crashes 30 minutes in. Could this be evidence my PSU is faulty? Any help would be reduce my stress <3 I have a MSI GAMING X 1080ti + EVGA 750W G3 in the build, Asus Z730-A Prime MOBO, Team Vulcan 32GB 2400mhz ram. 

Could be the psu or the gpu. Testing the gpu in another known good working system will let you know where the problem is coming from.

EVGATech_JoseR
Hello arthurilano and welcome to the EVGA forums! 
 
Sajin did make a good suggestion to isolate the issue to the card and to add to that, you can also try swapping out the power supply or at least check the 12 volt rail in your motherboard BIOS which should be operating between 11.4~12.6 volts steady. If you notice any rapid fluctuations of .05v more or less that would indicate an instability. 

That still do not fix the issue with the ECO mode shutdown which seems to be really common issue with these "Superflower" based PSU's, i am actually kinda disappointed when Moderators don't even tell customers to test PSU without ECO mode(if they have used it) and see if it works.. for me, i already did all those things and narrowed down my problem to the ECO mode.

EVGATech_JoseR

n0ppa

EVGATech_JoseR
Hello arthurilano and welcome to the EVGA forums! 
 
Sajin did make a good suggestion to isolate the issue to the card and to add to that, you can also try swapping out the power supply or at least check the 12 volt rail in your motherboard BIOS which should be operating between 11.4~12.6 volts steady. If you notice any rapid fluctuations of .05v more or less that would indicate an instability. 

That still do not fix the issue with the ECO mode shutdown which seems to be really common issue with these "Superflower" based PSU's, i am actually kinda disappointed when Moderators don't even tell customers to test PSU without ECO mode(if they have used it) and see if it works.. for me, i already did all those things and narrowed down my problem to the ECO mode.

I'm sorry, but I was replying to the OP who did not mention anything about eco mode but I would be happy to assist you with your power supply. 
 
Head over to your motherboard BIOS and check the +12v voltage value and make sure it is between a consistent 11.4~12.6 volts and if you notice any rapid fluctuations please let us know and do this test with both eco mode on and off. I have created a ticket on your account just in case you would like to contact our support in Europe  

Yes i know he didn't mention it, but you guys as a tech support should mention it, cos it is the most common shutdown reason on EVGA psu's and also like i said on the previous message, i already have done the voltage monitoring and everything else, narrowed it down to the ECO mode, PSU works now just fine on normal mode, so i suppose it overheats on ECO mode and shutsdown, so most likely the fan will not start to spin at ECO mode(haven't touch ECO  mode after voltage testing, didn't check the fan back then)... 
 
But yeah, like i said.. works fine with normal mode for now, i will do RMA at somepoint .. no rush, i got still 9 years time left :)

chrism101
crap i just posted the same issue, i gotta read more G3 1000 W PSU.
So i looked Eco mode is off on mine, so thats not it.
could this be related to the broadwell e micro code or no?
My Video card is 1080TI FTW3
 

Doubt it.