Broken psu?

[Jsfeltner]

So basically my psu is old probably like 3-4 years which I’m pretty sure I need a one. But I’m having this problem where my pc is randomly restarting when I’m playing csgo and only csgo that I know of. Temps are fine on cpu and gpu so I’m thinking it’s my power supply but I could be wrong. Anyone have any ideas? 

[Jsfeltner]

Current build 

PCPartPicker Part List

Type	Item	Price
CPU	AMD Ryzen 7 3800X 3.9 GHz 8-Core Processor	$329.99 @ Amazon
Motherboard	MSI MAG B550 TOMAHAWK ATX AM4 Motherboard	$179.99 @ Newegg
Memory	Corsair Vengeance LED 16 GB (2 x 8 GB) DDR4-2666 CL16 Memory	$124.82 @ Amazon
Storage	Seagate Barracuda 2 TB 3.5" 7200RPM Internal Hard Drive	$89.00 @ Amazon
Video Card	EVGA GeForce GTX 1070 8 GB SC GAMING ACX 3.0 Black Edition Video Card	$609.00 @ Amazon
Case	Corsair SPEC-DELTA RGB ATX Mid Tower Case	$79.99 @ Best Buy
Power Supply	Corsair TXM Gold 550 W 80+ Gold Certified Semi-modular ATX Power Supply	$99.98 @ Newegg
	Prices include shipping, taxes, rebates, and discounts
	Total	$1512.77
	Generated by PCPartPicker 2020-08-08 22:19 EDT-0400

 

[Guest]

Your current PSU that's rebooting is the TX550M?

 

Do you have "automatically restart" unchecked in Windows?

 

http://jongerow.com/automatically-restart/index.html

 

[Juular]

It's very unlikely to be a PSU. I see Ryzen and a new motherboard, i'd assume unstable UEFI. Try to disable all OC settings on CPU, RAM and GPU.