High loop temp?

[DarkeVortex]

Hey all. Asked this question a while back after my loop was new and just built - kinda in a panic. Now that I've been using it for a while and it's not having issues, I figured I'd ask again just to see what's out there.

 

Build:

5950X (EK Monoblock on the ROG Crosshair VIII Dark Hero mobo)

3090 Strix OC (EK Waterblock + active backplate)

EK D5 pump/res combo

Lian Li O11-D XL --> Top/Bottom intake, side exhaust, 9 Lian Li Uni fans total

2x EK PE radiators (360)

1x EK SE radiator (360)

 

My loop temperature tends to hang out around 40C when gaming. This is in the mid-atlantic US, and my room is ~70-75F (sorry for mixed units) ambient. Is this loop temp high for what I'm running?

My GPU maxes at 55C under load, the CPU can reach high 75C + (depending on what sensor I'm reading, I know there is a lot of variation in them).

Flow rate is maxed at 230L/h, according to my High Flow NXT from aquacomputers.

 

If anyone has any thoughts, or even suggestions to improve temps, happy to hear them. When I game in summer and the room is hotter (like when I first built the loop) the water temperature was getting >45C and I was getting really worried.

 

[Devryd]

I would not like such a high coolant temperature, maybe set the fan curve a little more aggressive. I have my look at about 30-32°C when gaming while my room is about the same temperature.

[Devryd]

Do all the radiators get fresh air?

[LIGISTX]

1 hour ago, DarkeVortex said:

Hey all. Asked this question a while back after my loop was new and just built - kinda in a panic. Now that I've been using it for a while and it's not having issues, I figured I'd ask again just to see what's out there.

 

Build:

5950X (EK Monoblock on the ROG Crosshair VIII Dark Hero mobo)

3090 Strix OC (EK Waterblock + active backplate)

EK D5 pump/res combo

Lian Li O11-D XL --> Top/Bottom intake, side exhaust, 9 Lian Li Uni fans total

2x EK PE radiators (360)

1x EK SE radiator (360)

 

My loop temperature tends to hang out around 40C when gaming. This is in the mid-atlantic US, and my room is ~70-75F (sorry for mixed units) ambient. Is this loop temp high for what I'm running?

My GPU maxes at 55C under load, the CPU can reach high 75C + (depending on what sensor I'm reading, I know there is a lot of variation in them).

Flow rate is maxed at 230L/h, according to my High Flow NXT from aquacomputers.

 

If anyone has any thoughts, or even suggestions to improve temps, happy to hear them. When I game in summer and the room is hotter (like when I first built the loop) the water temperature was getting >45C and I was getting really worried.

 

What’s the fan/radiator set up like? What is inlet what is exhaust. What are fab RPM’s? 
 

Pump speed really doesn’t matter that much. Just need enough RPM… what really matters is surface area or radiators and fan CFM (but rpm is a good enough “way to estimate” fan things).
 

GPU is a bit warm, CPU is a bit warm. Are things overclocked? I’m thinning either your pumping too much heat into the system, or your rpm’s are to low. Or, loop order is “bad”. Ideally you run from the hot heat gendering parts into exhaust radiators first, and then intake radiators last. This way your not “pre heating” the exhaust radiators via the intake radiator warming up the air inside the case. 

[DarkeVortex]

3 hours ago, Devryd said:

Do all the radiators get fresh air?

They should be getting fresh air. What do you mean by that though?

[DarkeVortex]

3 hours ago, Devryd said:

I would not like such a high coolant temperature, maybe set the fan curve a little more aggressive. I have my look at about 30-32°C when gaming while my room is about the same temperature.

I agree. Even at max fan RPM it doesnt help a whole lot...

[DarkeVortex]

2 hours ago, LIGISTX said:

What’s the fan/radiator set up like? What is inlet what is exhaust. What are fab RPM’s? 
 

Pump speed really doesn’t matter that much. Just need enough RPM… what really matters is surface area or radiators and fan CFM (but rpm is a good enough “way to estimate” fan things).
 

GPU is a bit warm, CPU is a bit warm. Are things overclocked? I’m thinning either your pumping too much heat into the system, or your rpm’s are to low. Or, loop order is “bad”. Ideally you run from the hot heat gendering parts into exhaust radiators first, and then intake radiators last. This way your not “pre heating” the exhaust radiators via the intake radiator warming up the air inside the case. 

Top and bottom 360s are intake, pull configuration. Side is exhaust, push. All have 3 fans each.

 

Even at max RPM on the uni fans (not sure what that is) it still gets pretty warm.

 

Nothing's overclocked, which is annoying, wish I could but temps are already high. Loop order is pump -> top intake -> side exhaust -> CPU -> GPU -> Bottom intake -> pump.

I did a lot of asking around & research before building, and others have the same config as me with no real detriment in terms of loop order

[LIGISTX]

50 minutes ago, DarkeVortex said:

Top and bottom 360s are intake, pull configuration. Side is exhaust, push. All have 3 fans each.

 

Even at max RPM on the uni fans (not sure what that is) it still gets pretty warm.

 

Nothing's overclocked, which is annoying, wish I could but temps are already high. Loop order is pump -> top intake -> side exhaust -> CPU -> GPU -> Bottom intake -> pump.

I did a lot of asking around & research before building, and others have the same config as me with no real detriment in terms of loop order

That’s a lot of hot air being blown into the case… I’d consider doing bottom intake, top and side exhaust. If you have fans on the rear, use that as intake. But unfortunately your first radiator after the components is intake. It’s not the end of the world, but it raises internal case temps and means the air passing over the other roads will be warmer then ambient by a good margin.

 

But, if the loop is warm, all you can really do is try and change airflow pattern and increase fan speed (or reduce ambient temp, but low to mid 70’s is pretty normal….) 

[thrasher_565]

thow temps dont look bad?  i mean the hotter of the 2 guessing the gpu will make the cpu hotter. also dumping all the heat in the room will slowly incress the rooms temp.

[Devryd]

Could you take a picture of your pc?
I think that would really help with understanding the radiator layout and airflow pattern (atleast it would help me)

 

[DarkeVortex]

18 hours ago, LIGISTX said:

That’s a lot of hot air being blown into the case… I’d consider doing bottom intake, top and side exhaust. If you have fans on the rear, use that as intake. But unfortunately your first radiator after the components is intake. It’s not the end of the world, but it raises internal case temps and means the air passing over the other roads will be warmer then ambient by a good margin.

 

But, if the loop is warm, all you can really do is try and change airflow pattern and increase fan speed (or reduce ambient temp, but low to mid 70’s is pretty normal….) 

Gotcha. I can try switching that around next time I'm draining the loop and have everything easily accessible, if it becomes a huge issue immediately I may get to it sooner haha

[fonzz1e]

what's pwm speed is your d5 running at? 

[DarkeVortex]

11 hours ago, fonzz1e said:

what's pwm speed is your d5 running at? 

I'm not 100% sure at the moment. I know it's maxed out (really no noise difference at max vs slower) and it ends up with 230 L/h flowrate.

[fonzz1e]

16 hours ago, DarkeVortex said:

I'm not 100% sure at the moment. I know it's maxed out (really no noise difference at max vs slower) and it ends up with 230 L/h flowrate.

that's actually good flow rates with 3 rads and yet high coolant temp delta

 

can u get additional temp probe to stick on your rad, just to rule out its a inaccurate or faulty water temp sensor

 

btw what yer using to get the temp and flow rates? 

[DarkeVortex]

7 hours ago, fonzz1e said:

that's actually good flow rates with 3 rads and yet high coolant temp delta

 

can u get additional temp probe to stick on your rad, just to rule out its a inaccurate or faulty water temp sensor

 

btw what yer using to get the temp and flow rates? 

Yeah I can try that. Using an aquacomputer High Flow Next for both

[Stahlmann]

I'd not call that temperature too high.

My water also tops out at around 37°C, but in my case the fans only get to 850RPM while doing so.

 

Most pumps have their max water temp at around 60°C so you're far enough away from that. And as long as your components also reach reasonable temps you're fine. You can check my signature for another reference in terms of temps.