Prebuilt loud and hot after upgrading

[Jassisloth]

I recently upgraded my prebuilt lenovo gaming PC. It's about 2 years old so I upgraded the GPU from 1060 to 2060 SUPER and upgraded the PSU from i think 450w to 850w. After these upgrades the computer has been running pretty hot and the fans are spinning to the max. Should I buy a new cooling system?

 

Prebuilt specs (before upgrade): https://psref.lenovo.com/Detail/Lenovo/Lenovo_Legion_Y520_Tower?M=90JB001GUS

[Xaring]

You swapped a 120W card for a 175W one - theres 55W more thermal energy in the case - with a definitelly not above-average CPU cooler and fans.

Theres more heat in the case, fans work harder in order to fix it.

Yes, you should probably get a better CPU cooler and maybe better case fans.

[Analog]

If the 2060 Super that you have put in exhausts all of its heat inside the case then it would be pretty normal. Most prebuilts have craptastic airflow inside of them so it can't keep up.