Question Computer randomly restarts

[TSR2]

My computer keeps restarting by itself, with it being a couple of minutes in between restarts. There is a single beep noise after the computer restarts from inside the PC. I have recently installed a new graphics card (RX 580 8gb) and have changed the monitor. I am using windows 10 64 bit. Any help regarding this issue would be appreciated.

 

[Dark Lord of Tech]

Specs and make and model of PSU as this is commonly a power issue.

 

[TSR2]

Gigabyte RX580 8gb gpu
Corsair CX500 psu
Kingston HyperX DDR3 1866mhz 2x4gb ram
I5 4460 cpu
MSI Z97 PC mate mobo
Toshiba 1tb hdd

 

[mahipreet529]

I think u need to change your psu 500 watt is not recommended install 650 watt

 

[InvalidError]

500W should be enough but the Corsair CX500 is an old low-quality design. A better quality PSU like the newer CX550 would likely fix it.