It needs to be silent.If you like quiet, get an aftermarket cooler.
I’m leaving out stock cooler and will replace it with Dark rock 4 or NH-U12S for 3700x
Would have been good if it was not an itx case.Both of Micky's and Joxeon's suggestions are very good.
Would have been good if it was not an itx case.
Need th know max cpu cooler height for the case.
My ITX case:
Thermaltake Core V21 Compact Cube
Max CPU Cooler Height
185 mm cpu cooler needs to be dead silent.
£43 , very quiet with tdp of 220w
ALPENFOHN BROCKEN 3
https://www.overclockers.co.uk/alpenfohn-brocken-3-cpu-cooler-140mm-hs-05a-al.html
For a 3900X the stock cooler is not good enough. I'd recommend either a good air cooler (if it fits) or one of the best 120mm AIOs you can find (I'd recommend NZXT for their amazing 6 year warranty and if the AIO fails in that time and breaks some of your components then NZXT will replace all of your components - providing you send them your PC for inspection to prove that it wasn't user error)Wraith Prism
Is it good enough for a stock Ryzen 3900X
or shall I buy a cheap AIO 120mm Radiator (120mm is maximum size allowed on my ITX case)