After some research I was able to switch the Intel stock CPU cooler on my Dell 8930 with i7 8700 (non-k) processor.
To cooler I choose was the ARCTIC Freezer 11 LP (https://www.amazon.com/gp/product/B0037AKXKM/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1). I didn't want to remove the mother board to switch the backplate, so I went with this cooler, which enable me to just plug four M3 default screws directly on the board. I bought them at brazilian ebay-similar (https://produto.mercadolivre.com.br/MLB-982228557-kit-parafusos-philips-m3-x300-unidades-pronta-entr...).
If fitted perfectly the available space, don't touching the RAM sticks, as you can see in the pictures.
Overall, I am very satisfied with the cooler. It came with pre applied thermal paste, runs quiet and the cpu temps rarely go over 50C.
Sorry for the pics, when I am logged in I can see them.
But anyway I created an album here: https://imgur.com/a/6dqeJ56
I used 8 mm M3 screws, but I think it's not necessary to be this exact length, any 7-10mm will do the job.
I ordered this cooler to fit to my 8930. Did you mean M3 x 80mm or M3 x 8mm?
Is it the screws to fit the black plastic guides or the screws from the fan to them? If it's the latter, then it must surely be 80mm?
EDIT: It's okay, I get what they are for now. Fixing the black plastic guides to the motherboard.
So I don’t get it. How did you get the long metal screws that came with the cooling fan to go down far enough for them to secure the fan in place? I tried to and it didn’t seem like they were long enough and I even messed up the thermal paste so now I need to reapply 😞
I want to use this fan but I need some help understanding how exactly he got this to work
First you need to secure the black plastic brackets on the motherboard with any four M3 default screws (you have to buy separately). Than you use the long screws to secure the fan on the brackets.
Well I have a few 8mm M3 screws laying around so that’s not an issue for me. What I don’t get it where the long screws that come with the fan go, it seems like they only line up with the screw slots that you put the 8mm M3 ones into and not the outer screw slots.
Have you seen the unit Dell makes for the 8930 that drops the temps 18* F ?