PC Shuts Off Under Intense Load - Already Replaced PSU

Posted by rj_celtics@reddit | buildapc | View on Reddit | 0 comments

Hi all,

For the longest time, I've had the issue of my PC shutting down randomly under intense gaming loads. Generally, I can go weeks or months without it happening, but there are a few games where I know I can expect it to happen.

Since this issue has started, I have (in order):

Upgraded CPU cooler
Replaced GPU shroud with Noctua fans
Replaced GPU thermal paste
Upgraded CPU (from Ryzen 5 5600 to Ryzen 7 5700X. Not done as a troubleshooting step, but relevant to the situation)
Replaced PSU (from Thermaltake Smart BM2 750W 80+ Bronze, to Corsair RM750X 80+ Gold)

I've also run various stability tests, benchmark programs, etc, but I haven't been able to recreate the issue outside of intense gaming loads.

Here is the current parts list:

[PCPartPicker Part List](https://pcpartpicker.com/list/v8pVYd)

Type|Item|Price

:----|:----|:----

**CPU** | [AMD Ryzen 7 5700X 3.4 GHz 8-Core Processor](https://pcpartpicker.com/product/JmhFf7/amd-ryzen-7-5700x-34-ghz-8-core-processor-100-100000926wof) | $130.00 @ Amazon

**CPU Cooler** | [ID-COOLING SE-214-XT ARGB 68.2 CFM CPU Cooler](https://pcpartpicker.com/product/Zr8bt6/id-cooling-se-214-xt-argb-682-cfm-cpu-cooler-se-214-xt-argb) | $18.98 @ Amazon

**Motherboard** | [Gigabyte B550M AORUS PRO-P Micro ATX AM4 Motherboard](https://pcpartpicker.com/product/2Bwkcf/gigabyte-b550m-aorus-pro-p-micro-atx-am4-motherboard-b550m-aorus-pro-p) | $199.99 @ Amazon

**Memory** | [Silicon Power GAMING 16 GB (2 x 8 GB) DDR4-3200 CL16 Memory](https://pcpartpicker.com/product/P4FKHx/silicon-power-sp016gxlzu320bdaj5-16-gb-2-x-8-gb-ddr4-3200-cl16-memory-sp016gxlzu320bdaj5) | $24.97 @ Amazon

**Video Card** | [MSI MECH 2X OC Radeon RX 6700 XT 12 GB Video Card](https://pcpartpicker.com/product/9K4Ycf/msi-radeon-rx-6700-xt-12-gb-mech-2x-oc-video-card-radeon-rx-6700-xt-mech-2x-12g-oc) | $737.40 @ Amazon

**Power Supply** | [Corsair RM750x (2021) 750 W 80+ Gold Certified Fully Modular ATX Power Supply](https://pcpartpicker.com/product/6NcG3C/corsair-rm750x-2021-750-w-80-gold-certified-fully-modular-atx-power-supply-cp-9020199-na) | $79.99 @ Newegg

| *Prices include shipping, taxes, rebates, and discounts* |

| **Total** | **$1216.30**

| Generated by [PCPartPicker](https://pcpartpicker.com) 2024-11-20 15:32 EST-0500 |

CPU and GPU temperatures are always well within acceptable ranges. They were a bit warm before I upgraded the cooler fans, but I don't think this was ever the issue.

I just replaced the PSU after doing research on similar issues, with most people pointing to the power supply as the culprit. Even so, I just got another shutdown.

I'm really struggling to understand what could be causing the issue. Anyone have any advice?