Radiators required for a 13900K build.

[Gepetto]

I'd like an opinion on whether I'm going to need serious cooling capabilities for a 13900K and (possibly) a 3080/90 .

Having looked through some builds and planning out things in my head, I have come up with a thin 360mm rad and a fairly thick 280mm rad in a Lian Li Mini

I'm thinking DDC Pump/Res and what is concerning me is the noise, as I'm worried about having to turn the fans and pump up somewhat.

Does anyone have any experience they could share?

TIA.

 

[Gepetto]

I'm not a big proponent of DDC pumps though, I think you'll be happier with a D5, if you have the space. They're quieter.

I really find this guys SFF builds to be very informative when it comes to what you can do with reduced rad space in smaller cases. Give him a watch if you haven't already.

Thanks @Parsley I'll give his vids a look.

Usage will mainly be gaming so I'm glad to hear that.

My DDC Pump/Res can go to my son and I'll look for a D5 variant. I like quiet.

 

[Gepetto]

I used a single very thick EK 360 rad with triple fans, a 13700K and 16% overclocked 6900XT.

Absolutely fine, but I did not overclock the CPU.

I also mount rads on top on the case rather that inside the case, I believe they are better outside of the hot case but I might be completely wrong, its just the way I have always done it.

That's interesting @dave28 I don't fancy the rad outside the case but I can definitely mount the 280 rad in the side compartment with the fans blowing through it.

When I've got all the components I'll see if I can fit the 360 in the roof in the same manner. My thoughts are the 280 will get in the eway though.

 

[Gepetto]

Are you bound by a case size at all? Is this Mini or Air Mini?
Some thinner rads are now very capable vs a lot thicker stuff.
If you like quiet worth going thin rads with low rpm fans and you'll likely to be OK with 2x 280s, maybe need to add one more 240.
Thats the setup I am eying for 2080ti + 13600k and think it's an overkill already.

Thanks @qbazdz I do have a thick 360mm rad that I'll try. Whether in the top or bottom of the case I haven't yet decided. The 280mm rad for the side is a thick rad.

I'm using a normal O11D Mini, not the Air version. I have an O11D Air if all else fails!

MB and RAM have now arrived and I'm going ITX so I'm hoping to have lots of room to play with.

Thanks for your input.

 

[Gepetto]

Just so you have a comparison of sorts, these are my temps under a gaming load (Horizon Forbidden West). The computer runs pretty quietly to my ears.

This is with two 360 rads and one 280 with fans pushing (so only one set of fans on each rad), all of "medium" thickness. 13700k and a 3090, both undervolted a tad. The 3090 is also overclocked so it's not as low as I could make the voltage go, people were getting to around 800-900mv if I remember correctly, depending on how much clock speed they were happy losing.

If anything it will give you the sort of wattages I see in games.

That is brilliant @Parsley

Thank you for posting that. I'm hoping to get away with one 360mm and one 280mm rad though, so it's going to be interesting.