Do I need a different cooler?

[James Fin]

Hey y'all
I'm a complete noob when it comes to PC-builds and was more versed concerning software and stuff, but was inspired by LTT to actually start doing research, build some PCs myself and start tinkering around. Some weeks ago, I bought my own hardware for the first time instead of going through scrap yards. The build consisted of this:

 

- ASUS ROG Strix B450-F Gaming

- Cooler Master MasterBox Lite 5

- Corsair Vengeance LPX (4 x 16 GB)

- Samsung 970 EVO Plus

- KFA2 GeForce GTX 1650 Super EX

- Corsair RM650x

- AMD Ryzen 7 3700X

 

I am using the AMD Wraith Prism RGB stock cooler and the 4 coolers that the came with cooler master case. Shockingly, I'm currently getting an idle temp of around 60 °C and 82 ° under even light loads. What is even more confusing to me is that the temp is very instable, as in that even at idle, the temperatur jumps around drastically. To change this, I already started to completely blast all fans all the time. This changed nothing.

 

Would you say that i need to replace the stock cooler with something more powerful? Is it possible that I just need to remount the cooler with renewed thermal paste?

Thanks a lot and sorry for the inexperience 

[Chabax]

you should definatly first try repasting CPU thermal paste, but be careful with amd stock cooler and its thermal paste, cuz its sticky af and u can easly pull out cpu together with it and cause damage, twist cooler slightly to left and right before pulling, wipe thermal paste completely and do and X on cpu with thermal paste,  but big one half sized X on cpu, but ryzen will still behave like that, every few seconds 10c temp jumps, its how it behaves and is normal, but 82c on stock load is definatly bad thermal paste application or something like that

[Jurrunio]

Probably just bad paste or bad mount

[James Fin]

2 minutes ago, Chabax said:

you should definatly first try repasting CPU thermal paste, but be careful with amd stock cooler and its thermal paste, cuz its sticky af and u can easly pull out cpu together with it and cause damage, twist cooler slightly to left and right before pulling, wipe thermal paste completely and do and X on cpu with thermal paste,  but big one half sized X on cpu, but ryzen will still behave like that, every few seconds 10c temp jumps, its how it behaves and is normal, but 82c on stock load is definatly bad thermal paste application or something like that

You're amazing, thank you so much for your quick reply. I was really worried I might have f*d up with my build. I'll definitely be careful with the remounting and repasting

[AndreiArgeanu]

Make sure you peeled the plastic under the cooler and apply thermal paste properly, also make sure that pressure is applied evenly across.  I believe idle temperatures should be around 40C and under load it should always stay in the low 80's.

[James Fin]

OMG... the plastic.... I feel like such a dumb dumb...

[Chabax]

Just now, James Fin said:

OMG... the plastic.... I feel like such a dumb dumb...

btw you have to repaste, cuz now there will be air bubbles whic make hotspots and overheat cpu, just do as i said , small X on cpu and mount that cooler

[James Fin]

10-4, i'll do exactly that

[AndreiArgeanu]

1 minute ago, James Fin said:

OMG... the plastic.... I feel like such a dumb dumb...

Not all AMD coolers come with the plastic on the bottom, yours might have, or might not, though, just to be sure, check for it, then reapply thermal paste, and then make sure that you mount the cooler properly so that there is even pressure on the cpu and that it makes contact to make sure you remove the variables

[James Fin]

I'm so relieved. You guys are the best. Thank y'all so much