This is probably a bad idea, but we're gonna go for it anyways !

[5GigsOrBust]

Building my first custom loop and obviously I have to go with the largest possible fan size, because go big or go home. Anyways, I just found out that 400 mm radiators are a thing so I just picked up a Nexos 400mm Monsta rad and 2x Noctua NFA-20s. Might need 2 more fans for push-pull, but we'll see after testing. The interesting part is, I wasn't able to find a single video on youtube of anyone doing this, or any photos of a 400mm custom loop on google. I'm sure its been done before, but it's definitely never been properly captured & documented on the interwebs. So, that's why we're here today.

 

I can see you getting ready to assault this plan with criticism. But don't worry, and before you pick up that keyboard, I have researched this and I do understand that the static pressure of 200mm fans is crap, and I know I'll never be able to fit this setup in a case..etc. I'm only doing this because I like the idea of having a comically oversized rad & fans that will be absolutely silent. All that said, I'm curious to hear opinions on how the internet thinks this will turn out.

 

Links below for the items if you want to get an idea of the size of this rad & fans.

 

https://www.aquatuning.us/water-cooling/radiators/radiators-active/180200mm/27838/alphacool-nexxxos-monsta-full-copper-400mm-radiator?c=6566

https://www.amazon.com/Noctua-NF-A20-PWM-Premium-200x30mm/dp/B071SLFBNY

[jaslion]

What do you mean it won't fit in a case? There are multiple cases that will fit a 400mm rad. Like a h500 mesh.

 

I mean if the goal is silence you could just do dual 360 rads or dual 280 rads and slow the fans down a ton. I do that I have a 360 and 240 with arctic p12's running at 400rpm cooling a 3900x + vega 64 without any trouble.

 

In the end it will cool and it will cool well enough.

[thrasher_565]

1250mm super nova is there biggest rad... 4x200mm  plenty of people use it.

 

 

heres a 2x 180mm rad build

 

 

Edited May 31, 2022 by thrasher_565

[5GigsOrBust]

1 hour ago, jaslion said:

What do you mean it won't fit in a case? There are multiple cases that will fit a 400mm rad. Like a h500 mesh.

 

I mean if the goal is silence you could just do dual 360 rads or dual 280 rads and slow the fans down a ton. I do that I have a 360 and 240 with arctic p12's running at 400rpm cooling a 3900x + vega 64 without any trouble.

 

In the end it will cool and it will cool well enough.

I doubt it! Have you seen this rad? Its not a standard size, its an 85mm thickboy. If I go with push-pull, that's an extra 60mm of fans

[thrasher_565]

3 hours ago, 5GigsOrBust said:

I doubt it! Have you seen this rad? Its not a standard size, its an 85mm thickboy. If I go with push-pull, that's an extra 60mm of fans

i could fit it... take some modding but doable

 

 

[fonzz1e]

if cooling is your concern, if u have space always go for more rads instead of thicker rads

 

example:

2x 360 30mm thick rads wins over

1x 360 60mm thick rad

[For Science!]

12 hours ago, 5GigsOrBust said:

Building my first custom loop and obviously I have to go with the largest possible fan size, because uh.... go big or go home. Anyways, I just found out that 400 mm radiators are a thing so I just picked up a Nexos 400mm Monsta rad and 2x Noctua NFA-20s. Might need 2 more fans for push-pull, but we'll see after testing. The interesting part is, I wasn't able to find a single video on youtube of anyone doing this, or any photos of a 400mm custom loop on google. I'm sure its been done before, but it's definitely never been properly captured & documented on the interwebs. So, that's why we're here today.

 

I can see you already getting ready to assault this plan with criticism. But don't worry, and before you pick up that keyboard, I have researched this and I do understand that the static pressure of 200mm fans is crap, and I know I'll never be able to fit this setup in a case..etc. I'm only doing this because I like the idea of having a comically oversized rad & fans that will be absolutely silent. All that said, I'm curious to hear opinions on how the internet thinks this will turn out.

 

Links below for the items if you want to get an idea of the size of this rad & fans.

 

https://www.aquatuning.us/water-cooling/radiators/radiators-active/180200mm/27838/alphacool-nexxxos-monsta-full-copper-400mm-radiator?c=6566

https://www.amazon.com/Noctua-NF-A20-PWM-Premium-200x30mm/dp/B071SLFBNY

The only thing I would add is that Noctua and Watercool recently collaborated to produce a higher-static pressure version of the NF-A20 which sounds like its a overall better suited fan for this purpose. https://shop.watercool.de/Noctua-NF-A20-HS-PWM-chromaxblack_1

[5GigsOrBust]

On 5/31/2022 at 5:51 AM, For Science! said:

The only thing I would add is that Noctua and Watercool recently collaborated to produce a higher-static pressure version of the NF-A20 which sounds like its a overall better suited fan for this purpose. https://shop.watercool.de/Noctua-NF-A20-HS-PWM-chromaxblack_1

Thank you, I had no idea there was an HS version of these fans. I ordered them within minutes after reading your post. The static pressure of these fans was a big concern for me, so this HS version should be perfect. 

[jaslion]

17 hours ago, 5GigsOrBust said:

I doubt it! Have you seen this rad? Its not a standard size, its an 85mm thickboy. If I go with push-pull, that's an extra 60mm of fans

The h500 has like megaspace so I doubt that it wouldn't fit.

[AnonymousGuy]

People mostly just run multiple smaller ones to fit them in a practical case size.  People who go bigger typically go external cooling where there's 420 radiators or I've seen like 8x480 rads chained together.

 

Here's part of my deal with a 420 "watercooling" radiator for comparison (which was its predecessor). it's 23" square, much higher fin density, and thicker...and cheaper because it's not getting the PC-gamer markup.  The wood framing is so an air filter sits in there.

 

s

 

 

This is only a secondary system for the loop when my air temperature is low.  The primary system is tap water cooled.  It's only this large to start with because I've got 2000W hanging off it.  For a regular PC build it would be ridiculous.

[5GigsOrBust]

6 hours ago, AnonymousGuy said:

People mostly just run multiple smaller ones to fit them in a practical case size.  People who go bigger typically go external cooling where there's 420 radiators or I've seen like 8x480 rads chained together.

 

Here's part of my deal with a 420 "watercooling" radiator for comparison (which was its predecessor). it's 23" square, much higher fin density, and thicker...and cheaper because it's not getting the PC-gamer markup.  The wood framing is so an air filter sits in there.

 

s

 

 

This is only a secondary system for the loop when my air temperature is low.  The primary system is tap water cooled.  It's only this large to start with because I've got 2000W hanging off it.  For a regular PC build it would be ridiculous.

Nice if I had the space for that setup, I would definitely do something like that with 200mm fans

[Mister__E]

this is going to sound odd but, I think you'd be better off for reps(reputations pointz) if you managed to put an air compressor outside your house and have lead ins with the tubing to go straight to your computer, you can potentially print out baffles and enclosures for your fins... etc. 

 

oh wait... um how do you get a 4 pin to a solenoid valve? and how do you get a solenoid valve through the bios to arduino... crap...

 

Also, you have to remember that any dy/dx=0 (Navier stokes) condition leads to flow separation==> shockwaves ==> noise, so you basically have your oversized fans feeding this in at the radiator... so.. yeah.. oversized fans will need some type of enclosure leading into the bigass radiator to hopefully avoid this

 

I'm currently working on a better solution for current waterblocks, so gimme a few months

 

*posted while sloshed, typed, not read... much*

[thrasher_565]

On 6/1/2022 at 3:50 PM, AnonymousGuy said:

People mostly just run multiple smaller ones to fit them in a practical case size.  People who go bigger typically go external cooling where there's 420 radiators or I've seen like 8x480 rads chained together.

 

Here's part of my deal with a 420 "watercooling" radiator for comparison (which was its predecessor). it's 23" square, much higher fin density, and thicker...and cheaper because it's not getting the PC-gamer markup.  The wood framing is so an air filter sits in there.

 

s

 

 

This is only a secondary system for the loop when my air temperature is low.  The primary system is tap water cooled.  It's only this large to start with because I've got 2000W hanging off it.  For a regular PC build it would be ridiculous.

my core 200 can fit two of the 1280 in the case no mods and my caselabs case did have a mount for one... i think a 1080 will fit in the back of the tower 900 with mods my core x9 i dont think it will fit on the top.