Hi, as the title says my PC started randomly rebooting occasionally while playing/starting games, until today it did that 3 times in a row while I was actually trying to figure out what the problem was while I was on chrome/desktop. At first, I thought it was a temperature-related issue with my CPU/GPU, so I used afterburner to check temps and although I still have my stock cooler on my CPU it never really goes beyond 80 degrees, same for my GPU; also, I totally discarded the temperature idea cuz of the randoms reboots I got today while doing literally nothing. This morning I updated my bios, hoping it could fix something, but it didn't so I tried to check the general voltage of my RAM, CPU, etc with HWinfo (I'll link them at the bottom of the post)but I'm not sure what to look at or notice anything odd regarding my PSU, even tho that's my main concern.
Regarding my current build I got:
PSU-> Corsair CX550 Bronze
Motherboard-> Asus Prime B450M-A-II
CPU-> Ryzen 5 3600
GPU-> Gtx 1070 Asus Dual OC
RAM-> Crucial Ballistix 2 x 8gb DDR4 3200 Mhz
SSD-> Crucial Mx300 525Gb
HDD-> WD Caviar Green 2 TB 5400 RPM / Seagate 1 TB 7200 RPM
CASE-> CoolerMaster Silencio 452
Those are the info I managed to get from HWinfo just before it restarted once again before I turned it off, I also would like to add that I got no BSOD or errors while those reboots happened.
Final notes, I've been trying to solve this for a few days now, and tried also some stress tests that gave me no clue on what the problem might be except for my PSU, thanks in advance to anyone that will read this and help me out!
Edit: I also want to add that in the last few months for some weird reasons one of the 2 fans of my 1070 stopped working, and when i tried to push the card a bit higher before the pc was turned on, it would actually work too for a small amount of time. Could it be related to psu too?
Regarding my current build I got:
PSU-> Corsair CX550 Bronze
Motherboard-> Asus Prime B450M-A-II
CPU-> Ryzen 5 3600
GPU-> Gtx 1070 Asus Dual OC
RAM-> Crucial Ballistix 2 x 8gb DDR4 3200 Mhz
SSD-> Crucial Mx300 525Gb
HDD-> WD Caviar Green 2 TB 5400 RPM / Seagate 1 TB 7200 RPM
CASE-> CoolerMaster Silencio 452
Those are the info I managed to get from HWinfo just before it restarted once again before I turned it off, I also would like to add that I got no BSOD or errors while those reboots happened.
Final notes, I've been trying to solve this for a few days now, and tried also some stress tests that gave me no clue on what the problem might be except for my PSU, thanks in advance to anyone that will read this and help me out!

Edit: I also want to add that in the last few months for some weird reasons one of the 2 fans of my 1070 stopped working, and when i tried to push the card a bit higher before the pc was turned on, it would actually work too for a small amount of time. Could it be related to psu too?