System shutting off with no warning while Gaming

[danilo.jagnjic98]

Okay hear me out, i know this thread or similar ones have been made hundreds off times i have read most of them tried many solutions but none have worked so far (Listed Below):

- Resetting CMOS
- Powering PSU without comp
- Resetting computer
- Trying different RAM
- Trying a different GPU
- Unplugging all my PSU cords
- Monitoring Temperatures
- Redoing the thermal paste on the CPU and GPU
- Unplugging my second monitor
- Trying a different AC Cord
- Turning all power usages down to use less power
- Running a strees test for 12 hours (Prime95)
- Running Memtest with no errors
- Took off side panels on case for more airflow
- Down clocking GPU
- Tried using a different power-point

The only things i haven't tried are a new CPU, PSU and MOBO other than that I've tried replacing all other parts.


Specs:
CPU - i5 4440
GPU - MSI R9 380 4G | Sapphire nitro R9 380x 4G (I only run 1 GPU)
MOBO - MSI GD-65 Z87
PSU - FSP Aurum 750w Gold
RAM - Corsair Vengeance 8gb | HyperX 8gb
Monitors - BenQ Zowie XL2430 24in 144Hz LED Gaming Monitor and a HP w2207 22" 60hz
Peripherals - Steelseries rival mouse, Corsair RGB K65 keyboard and Senhieser HD 280 Pro.
HDD - 2TB Western Digital, 1TB Seagate Barracuda and 60GB Kingston SSD

I think the problem is the PSU cannot provide enough power anymore because I've had this setup for 5 years now but i just wanted to get other peoples opinions before i buy new parts

EDIT: I've tested my computer using a power monitor to see how many Watts it was using just before it crashed, It ended up crashing at 247.4 Watts
https://imgur.com/a/WwlvDZ3

Thank you - Dani

 

[McSkops]

Highly likely it's the PSU. The FSP Aurum already had poor 12v and 3.3v rail regulation to begin with, thus falling out of spec under load.

 

[danilo.jagnjic98]

Highly likely it's the PSU. The FSP Aurum already had poor 12v and 3.3v rail regulation to begin with, thus falling out of spec under load.

Ill be honest i'm not to fond on power specifications, Just wondering is there a chance its the MOBO though?

 

[J_E_D_70]

Unlikely to be mobo. As McSkops said, likely the psu.

 

[Danra]

The computer shutting down is a VERY serious problem. It is most likely caused by your power supply. A faulty power supply can damage other components in your computer, everything from CPU, motherboard, RAM and more.

Get a better power supply quickly before you fry expensive components.

Do not purchase Corsair CX power supplies, they are the type used by most computer companies like Dell because they put cheap and low quality components in computers, except possibly very high end computers or if a customer asks for a specific PSU to be placed in a computer.

Because your computer crashed at 247.4 Watts is an indicator that your PSU is defective.

Here is a link to some power supplies, purchase one from a vendor selling them for the least amount of money.

https://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007657%2050001459%2050001697%20600479295%20600037997%20600037998%204814&IsNodeId=1&bop=And&Order=PRICE&PageSize=36

jonnyGURU.COM is the best power supply reviewer, pick one that is recommended by him.