PC Shuts down under load

eremenko

Prominent
Aug 8, 2017
5
0
510
Hi Tom's Hardware,

Been reading Tom's hardware for years, never had to post until now though, could always find the perfect answer to my query. However having gone through a few posts on here I've found people people experiencing similar issues but I just wanted to get some opinions on my specific set up.
I've been using the following components without any problem at all;

Aerocool 500w PSU
STRIX-GTX970-DC2OC-4GD5
2 X Ballistix 8gb ram
i5-2320
In an old Lenovo mobo.

I recently decided to upgrade my CPU and mobo to;
i7-3770 (non k)
Gigabyte z77p-d3

The build works absolutely fine until it hits a high load (gaming, usually while playing GTA online, even at medium graphics settings) at which point it completely shuts off, the power just goes dead but as soon as I power up it boots as normal. My temperatures are completely normal;
CPU 45-50 °C
GPU 55-60 °C
Mobo 35-45 °C

I've gone through the steps on a CPU calculator but I'm not 100% certain I've done it all right and it looks like I'm using probably 415 watts at full load, would a 500 watt psu at 85% efficiency be enough for that or would I need a higher margin for safety?

My theory is that the GPU I have has somekind of Overdrive mode and it's pulling too much power from the PSU under heavy load and that's causing a power cut from the PSU but I just wondered if anyone had experienced something similar or thought it might be another problem entirely?#

Thanks in advance for any suggestions.
 
Solution
Most common causes are overheating and power issues. Given the fact Aerocool psus are garbage that would be my first suspect since your temps look ok.

eremenko

Prominent
Aug 8, 2017
5
0
510




Thanks for confirming my theory, temps are definitely well within the boundaries I've switched coolers and fans to make sure as I was recording much higher temperatures previously. I'll order a coolermaster 650 psu and report back. Thanks again really appreciate you taking the time out to answer.
 

eremenko

Prominent
Aug 8, 2017
5
0
510


Looking at the G650M? Pretty mid range I know but I have budget limitations. What do you recommend for less than £70?
 

eremenko

Prominent
Aug 8, 2017
5
0
510


Thanks so much. I've ordered the SeaSonic S12. I'll report back. Thanks so much.