Two rads, one pump

[Water_Bill]

I'm working on a new water cooling loop. I haven't built one in a while, but I have built a few. 

 

I'm using an Enthoo Primo, 360 rad for the GPU, 420 Rad for the CPU, EK-XRES-200 DDC MX. I'm cooling a Ryzen 1950x and a GTX 1000 TI for now. I'll likely upgrade both after the pandemic, but for now my leftovers will have to do. I was going to get fancy and split the output off the pump to the separate blocks, but I get that this may lead to less flow to the smaller channel, likely the GPU. I'm thinking  I'll go pump, GPU block, 360 rad, CPU block, 420 rad. I know it's overkill, but it will likely be my last build and I want to leave room for upgrades down the road. 

 

Any thoughts on the above sequence?

[Tristerin]

Loop order doesnt matter, the liquid will "normalize" to the temp of the loop regardless of the order - but sounds like how Id set it up if I were using those components.

[Mick Naughty]

Are you using a distro plate to get that fancy layout or is it just gonna be messy?

I tend to run my loops in an actual circle if possible. Keeps the runs short easy follow. 

[Water_Bill]

On 10/17/2020 at 8:52 AM, Mick Naughty said:

Are you using a distro plate to get that fancy layout or is it just gonna be messy?

I tend to run my loops in an actual circle if possible. Keeps the runs short easy follow. 

Yeah, it will be messy for now. It will be circle more or less. I actually changed to the EK-D5 Res, so I might run separate inputs back from the rads. Although I think this might be more Fugly and I would need a Wye for the output. I probably have one in my box o crap.

[airborne spoon]

I run my rig with a 240 and a 360 with a RX 5700 xt and 3700x on water, i have 2 pumps though i wasn't getting enough cooling from the 1 pump i suspect too much restriction. i have the 2 pumps installed together using a alphacool pump plate thingy, and now i'm running super cold and no issues

but with your CPU and GPU you'll be more than cold enough with a single pump and if you upgrade later see what your temps look like

[HM-2]

4 hours ago, airborne spoon said:

I run my rig with a 240 and a 360 with a RX 5700 xt and 3700x on water, i have 2 pumps though i wasn't getting enough cooling from the 1 pump i suspect too much restriction.

What pump? I'd find this quite surprising with a D5 or DDC, I've got two high restriction 360mm radiators and two blocks in my system and I get zero difference in temperature delta between a D5 run at 60% and one at 100%.

[Deli]

27 minutes ago, HM-2 said:

What pump? I'd find this quite surprising with a D5 or DDC, I've got two high restriction 360mm radiators and two blocks in my system and I get zero difference in temperature delta between a D5 run at 60% and one at 100%.

My system has a 280 and a 240mm rad, cooling CPU and one GPU. At max speed(I think 4400rpm) has a ~1.5C difference compares to 2500rpm for the CPU, while no noticeable temperature difference for the GPU. I doubt I'll ever need two pumps for a simple system like this. I use DDC pump.

[Water_Bill]

On 10/27/2020 at 1:08 PM, airborne spoon said:

I run my rig with a 240 and a 360 with a RX 5700 xt and 3700x on water, i have 2 pumps though i wasn't getting enough cooling from the 1 pump i suspect too much restriction. i have the 2 pumps installed together using a alphacool pump plate thingy, and now i'm running super cold and no issues

but with your CPU and GPU you'll be more than cold enough with a single pump and if you upgrade later see what your temps look like

Yeah I may split the loops eventually if I get a 3990 in there. I'd need to sleep in the garage though.

[Water_Bill]

OK, I was playing with the PWM hub today and I got thinking that I should have one hub for each rad? It makes no sense having the CPU fan header controlling the fans for the GPU. I'm assuming my fancy water cooled GPU has a fan header; it's still in the box. I'm waiting for some fan screws of all things.

[airborne spoon]

On 10/27/2020 at 2:13 PM, HM-2 said:

What pump? I'd find this quite surprising with a D5 or DDC, I've got two high restriction 360mm radiators and two blocks in my system and I get zero difference in temperature delta between a D5 run at 60% and one at 100%.

Normal D5 from EK. Strangely enough something seems to have changed though. I just unplugged one pump for about 3 hours and the temps didn't change. Yet when I first built my system it was about 10c lower with the second pump on.

But whatever now I have a spare pump if one ever goes out.

 

1 hour ago, Water_Bill said:

Yeah I may split the loops eventually if I get a 3990 in there. I'd need to sleep in the garage though.

My old computer I had 2 sperate loops but I had a lot of space to play with. Now I run one loop for everything with no issue. The only reason I had 2 loops was because I could and it looked cooler with 2 separate coloured loops and all the lines everywhere. Pic for example of how much space I'm talking about

 

You'll be just fine and dandy with one loop even if you upgrade to some high end stuff as long as you keep reasonable airflow.