How many Rads and how many Fans?? First time WC

[earth_inheritor]

Hi Everyone, long time watching new time..forumer?!

 

I am building a whole new rig and its my first time using water cooling. I asked Reddit and got some advice but i need something more concrete. Use for start with high end gaming but i plan on learning 3d animation and design so rendering times will be important, so constant cooling. 

Here is the end build, once parts are in stock, not including water cooling as thats the advice i need:

 

Corsair Obsidian 1000d

AMD Ryzen 5950x (Waiting to order as it launches Nov 5th) (This will have a water block)

ROG Crosshair VIII Hero (Wi-Fi)

64gb Corsair Vengeance Pro 3200mhz (2x 32gb)

1TB Samsung 980 Pro x2

6TB Seagate Baracuda x2

EVGA FTW Ultra 3080 (Water block to be added later as i cant find one for that card yet)

 

________

 

So, onto the questions. 

In the Corsair 1000d i have plenty of room so heres the plan:

 

Front: 8x 120mm fans pulling in, then 2x 480 rads attached to those, Hydro X XR7. Option to add second layer of fans. A lot of 1000d builds I've seen have 2 layers. Should i or shouldn't I? Looking for cool and quiet for long steady use.

Top 3 x 140mm fans pulling in, then a 360mm rad ontop, Hydro X XR7, with another 3 fans on the other side if thats a good move or not

Rear 2x 140mm expelling out the back, no rad.

 

So that's:

2 Corsair 480mm XR7 rads at the front with 8 or 16 fans 120mm

1 Corsair 360mm XR7 rad on top with 3 or 6 fans 140mm

2 140mm or 120mm at the rear.

 

So if i have 11 to 22 fans drawing in and only 2 expelling, am i causing issues?

I like the look of the double fan setup but am i going OT? 

 

Front and top Pull and rear push?

 

Any advice would be fantastic . Thank you everyone

 

Google Search: Top fans no rad, front with rads with single layer of fans for example.

 

 

Google again: Full setup, 3 rads, double layer fans on all 3

[Vishera]

From my knowledge of fluid dynamics,2 separate loops would be better,one for the CPU,and the other for the GPU.

32 minutes ago, earth_inheritor said:

So if i have 11 to 22 fans drawing in and only 2 expelling, am i causing issues?

Yes,if air comes in it replaces the air that is present in the case,and in order for that air to get replaced it has to get out of the case.

If you make it harder for the air to come out - it will make it harder for the air to come in.

 

So here is a config:

Top and front - Intake

Bottom and back - Exhaust

 

It's a positive pressure config since the air on the bottom will have a bit of a problem to get out,and the back has less fans than any other spot.

 

A simple loop with a simple and short path and a large reservoir is the best for cooling performance.

 

  

32 minutes ago, earth_inheritor said:

Corsair Obsidian 1000d

The glass at the front of the case is not good for airflow,may want to remove it.

[Vishera]

28 minutes ago, earth_inheritor said:

double layer fans on all 3

That makes it harder for air to go through,since it has to go through another fan.

It's like a person going through a corridor,the more obstacles you have the slower it will take for you to reach the destination.

[earth_inheritor]

 

 

Quote

So here is a config:

Top and front - Intake

Bottom and back - Exhaust

The Obsidian 1000d does not have a bottom fan space. The PSU and hard drive enclosure takes up the space unfortunately. Just 2 on the upper back

[Vishera]

Just now, earth_inheritor said:

 

 

The Obsidian 1000d does not have a bottom fan space. The PSU and hard drive enclosure takes up the space unfortunately. Just 2 on the upper back

So i would do something like that:

Top and front - Intake

Back - Exhaust

 

And can you remove the front glass?,It's recommended for optimal airflow.

[Cyracus]

For how much rad you are planning a second set of fans will make minimal difference.
Recommend fans pulling air through rad, helps come cleaning/dusting time.
Would only do the top rad as intake, you're already setup for positive pressure, no need to overdo it.

[earth_inheritor]

3 minutes ago, Vishera said:

So i would do something like that:

Top and front - Intake

Back - Exhaust

 

And can you remove the front glass?,It's recommended for optimal airflow.

Not sure if the glass could be removed but not sure if id want to. It will just expose the dust cover and look pretty bad. There is also a pretty decent gap between the glass and the frame. 

[earth_inheritor]

4 minutes ago, Cyracus said:

For how much rad you are planning a second set of fans will make minimal difference.
Recommend fans pulling air through rad, helps come cleaning/dusting time.
Would only do the top rad as intake, you're already setup for positive pressure, no need to overdo it.

So what if i eliminate the top rad and just use 3 fans? The front will still have the 2 480 rads with 8 fans pulling in. 

Will a third rad actually help or is it over kill?

 

The case can hold 2 systems. So its possible the top would be for a rad for the mini second system. 

[Vishera]

4 minutes ago, earth_inheritor said:

Not sure if the glass could be removed but not sure if id want to. It will just expose the dust cover and look pretty bad. There is also a pretty decent gap between the glass and the frame. 

Yep,the gap is big and you can use the glass,it's not the most optimal though,but will have no problems with that.

 

Also i would configure the loops that way:

Top radiator - CPU

Front radiator - GPU

 

1 minute ago, earth_inheritor said:

So what if i eliminate the top rad and just use 3 fans? The front will still have the 2 480 rads with 8 fans pulling in. 

Both options are good,so either way will be good 

The top is always the best position for a rad though.

 

1 minute ago, earth_inheritor said:

Will a third rad actually help or is it over kill?

Overkill.

[earth_inheritor]

2 hours ago, Vishera said:

So i would do something like that:

Top and front - Intake

Back - Exhaust

 

And can you remove the front glass?,It's recommended for optimal airflow.

ok so one more scenario i didnt consider. Looking at video on youtube shows that this is the best and cooler method. Push/Pull on the front rads. That would pull the cold air in, cool the rads, the inside fans would then pull the heat off the rads and move it out the back. the air on the tip would help there too.

thoughts?

 

[Cyracus]

4 hours ago, earth_inheritor said:

So what if i eliminate the top rad and just use 3 fans? The front will still have the 2 480 rads with 8 fans pulling in. 

Will a third rad actually help or is it over kill?

The third rad will be a diminishing returns thing, but comes with a few benefits and problems. More liquid and radiator space means longer to heat soak, so stress testing can take a while. But extra rad also means extra heat transfer so lower operating temps and/or allows you to run fans quieter

 

You could isolate the cpu and gpu, give the gpu the extra cooling I'd think, it being the hotter component. Shouldn't matter too much if you loop them together though.
 

Push/pull is another fractional gain thing, you can get a bit more cooling power, but cleaning/dusting is more work (with air being sucked through the rad dust and debris tend to collect on the outside of rad for easier cleaning, with push/pull you may have to remove fans) it's a personal choice thing, I recommend easier cleaning because ain't nobody got time for that

[bowrilla]

16 hours ago, earth_inheritor said:

Front: 8x 120mm fans pulling in, then 2x 480 rads attached to those, Hydro X XR7. Option to add second layer of fans. A lot of 1000d builds I've seen have 2 layers. Should i or shouldn't I? Looking for cool and quiet for long steady use.

Top 3 x 140mm fans pulling in, then a 360mm rad ontop, Hydro X XR7, with another 3 fans on the other side if thats a good move or not

Rear 2x 140mm expelling out the back, no rad.

 

So that's:

2 Corsair 480mm XR7 rads at the front with 8 or 16 fans 120mm

1 Corsair 360mm XR7 rad on top with 3 or 6 fans 140mm

2 140mm or 120mm at the rear.

2x480 is PLENTY of radiator space but of course more is ... better.

 

Push Pull only makes sense with thick radiators and only at higher (louder) revs. The difference at 500-800rpm is minimal. 3x140 is not 360mm but 420mm. Make sure the wider rad fits AND that you have enough space to actually fit everything. A 360mm radiator is 3x120mm fans. 

 

Have the top and rear as exhaust. That will give you a more balanced pressure level

 

If I see this correctly then there is the option to get an accessoire to put 2x480 at the top as well I'd do that as exhaust then and have the rear just for additional air intake.

 

That's 4x480mm of radiator space. Your car has most likely less beefy cooling.

 

P.S.: prepare for costs of ~1k for that loop.

P.P.S.: Look at Hardware Labs SR2 480 radiators. They also have side ports so you could potentially mount the adjacent radiators straight together without much hassle and bending.

[MaratM]

you plan is the all in maximum overkill watercooling setup. it will cost you a lot of money and the difference between a simple loop with 2 360 rads will be a degree or so, and the fans will run a 150 rpm lower at max load. but if you get better fans it will be just as efficient.

what fans are you planning to use?