13900K Cooling, help.

[Duke01]

Hello,

 

I have an i9-13900K and an RTX 4090 in my system, both water-cooled using 2 x 360 radiators - one as an intake and one as an outtake.

The power limit of the RTX 4090 is set to 70% (based on a video from der8auer), and the i9-13900K has PL1 100W and PL2 200W, with the MCU disabled (also based on a video from der8auer), using ThermalGrizzly CPU Contact Frame.

However, the i9-13900K is still experiencing thermal throttling while gaming, with temperatures exceeding 90°C. Do you think my cooling system is still insufficient?

 

Best regards,

Duke

 

[SorryBella]

3 minutes ago, Duke01 said:

outtake

*Exhaust

 

Loop order matters a lot, so it would be lovely to know that.

[NorKris]

Can we get: 

- Pics of Hwinfo64 with Watt and cpu temps when running cinebench r23?

- same test with sideglass panel off? (pics) 

[Duke01]

Loop order:

DistroPlate -> GPU -> CPU -> Top Rad. -> Bottom Rad. -> DistroPlate.

Correct me if I'm wrong, but I saw a video from JayZTwoCents doing various tests regarding loop matter and came to the conclusion that it doesn't matter. Also, the Distro Plate kind of forces me to this loop order.

 

Cinebench tests have to wait, I dont have much time lately. Also, it's late here in Germany, and I should go to bed now. I haven't used Cinebench R23 before. Can you tell me how long I should let it run, and what else I should consider?

[NorKris]

3 minutes ago, Duke01 said:

Loop order:

DistroPlate -> GPU -> CPU -> Top Rad. -> Bottom Rad. -> DistroPlate.

Correct me if I'm wrong, but I saw a video from JayZTwoCents doing various tests regarding loop matter and came to the conclusion that it doesn't matter. Also, the Distro Plate kind of forces me to this loop order.

 

Cinebench tests have to wait, I dont have much time lately. Also, it's late here in Germany, and I should go to bed now. I haven't used Cinebench R23 before. Can you tell me how long I should let it run, and what else I should consider?

1 guess one run would do (2min total) 

but 10m is better...

 

you are right loop order matter very little... its like 1-3c max

[KJustice]

To be honest, in general I think the two of those components in a singular system are going to draw imense heat. Also, incase you dont regularly watch, the 13900k is essentially impossible to cool, even in the chiller video recently released, under load the cpu was stil running around 60c when they were testing. I honestly dont think your going to improve too much unless you choose a different CPU. The only thing I could think would be two seperate loops, one for each of those power hungry beasts as I feel its a bit much to expect one loop to cool all of that. 

 

I do feel water cooling was the way to go, also sick build, it is beautiful. 

[NorKris]

6 hours ago, KJustice said:

To be honest, in general I think the two of those components in a singular system are going to draw imense heat. Also, incase you dont regularly watch, the 13900k is essentially impossible to cool,

[will0hlep]

maybe too much or too little thermal paste?, but the 13900K is an absolute monster to cool.

[Duke01]

Here is the requested screenshot. I did a 5-minute run (10 passes).

 

When researching about the 13900k, I saw a few videos from der8auer and Hardware canucks, showing that the impossible-to-cool high temperatures came mostly from an open power limit set by the motherboard manufacturers, allowing the CPU to draw as much power as it wants, like 350W and above. With power limits in place, like the Intel specs one, most decent air coolers could even cool the 13900k.

 

I think a single 360 rad should be plenty to cool a 13900k, same with the 4090. That's at least what I found online and how I understood it. Before I built the custom loop, I used a 360 AIO, and the CPU while gaming peaked at max 80C (with Intel Power limits PL1: 125X, PL2: 253W). But the AIO wasn't the quietest, and the Zotac 4090 Fans are mad loud even at 30% fan speed. That's why I went water-cooling.

 

I'm sure that I probably used a tiny bit too much thermal paste, Thermal Grizzly's Kryonaut in particular. I also spread it myself to make sure it covers the whole heatspreader.

 

Could it be the pump? It's the EK-XTOP DDC 4.2 PWM Elite. Or is the loop too restrictive? I'm using 4x Coolance QDC fittings for easier maintenance. (Well, it's useless for the CPU since the water block is mounted from the back, and it's blocked by the case, since the cutout isn't big enough ).

Also, using Z690M AORUS ELITE AX DDR4 as the motherboard, I kinda hate it so far, at least the software side, "MCE" disabled, V-Offset -0.095, power limits in place.

 

[NorKris]

might need a hwinfo64 from after som gaming... 71c there is nothing to complain about 

 

but ye 71c at 110w is high.. much higher than my 240 aio would get 

 

a bad cpu-coldplate mount is very possible 

[DoctorNick]

Your loop looks a bit restrictive and I would not want to clean that, no drain port  Hows your temps when running load on both CPU and GPU? I would have placed a rad where the distro plate is instead and made bottom intake instead to get all the hot air out of the case.  

[Duke01]

Probably should take it apart again and try remounting the CPU Waterblock, such a hassle tho

9 hours ago, DoctorNick said:

Your loop looks a bit restrictive and I would not want to clean that, no drain port 

Jokes on you, but there is a drain port, on the back side of the distro plate . Also, to get the CPU/GPU out quickly, I have the Koolance QDC fittings.

 

I played now for about 45 minutes Sons of the Forest, here's a screenshot of HWINFO64.

 

[-rascal-]

What case and distro plate are you using?

[Duke01]

10 minutes ago, -rascal- said:

What case and distro plate are you using?

"Lian Li O11 Dynamic mini", and "Stealkey Distro Plate for Lian Li O11D Mini - MK1"

[-rascal-]

5 hours ago, Duke01 said:

"Lian Li O11 Dynamic mini", and "Stealkey Distro Plate for Lian Li O11D Mini - MK1"

 

Thanks.

Okay, so the loop appears to be hooked up properly.

 

What is your pump speed / flow rate?

If it's too slow, that could contribute to high temperatures.

 

The other thing I could see, because of the loop order:
Distro --> GPU --> CPU --> Rad #1 --> Rad #2 --> Distro

The coolant is already heated from the GPU, before it flows into the CPU.

 

IF the flow rate is high enough, loop order shouldn't matter....but I'm wondering if you could re-arrange the loop so it is:

Distro --> GPU --> Rad #1 --> CPU --> Rad #2 --> Distro

Again, it comes back to your pump speed / flow rate.

 

[NorKris]

9 hours ago, Duke01 said:

Probably should take it apart again and try remounting the CPU Waterblock, such a hassle tho

Jokes on you, but there is a drain port, on the back side of the distro plate . Also, to get the CPU/GPU out quickly, I have the Koolance QDC fittings.

 

I played now for about 45 minutes Sons of the Forest, here's a screenshot of HWINFO64.

 

need to see GPU temp and Watt

 

700mhz on ur GPU...  thats strange...

[NorKris]

2 hours ago, -rascal- said:

 

Thanks.

Okay, so the loop appears to be hooked up properly.

 

What is your pump speed / flow rate?

If it's too slow, that could contribute to high temperatures.

 

The other thing I could see, because of the loop order:
Distro --> GPU --> CPU --> Rad #1 --> Rad #2 --> Distro

The coolant is already heated from the GPU, before it flows into the CPU.

 

IF the flow rate is high enough, loop order shouldn't matter....but I'm wondering if you could re-arrange the loop so it is:

Distro --> GPU --> Rad #1 --> CPU --> Rad #2 --> Distro

Again, it comes back to your pump speed / flow rate.

 

when i put my pump to very very low speed the Water temp diff between out on the cpu and out on the gpu is like 4c at the most 

 

it makes a diff when ur pushing OCs, but i dont think its the answer here thb

[DoctorNick]

13 hours ago, Duke01 said:

Probably should take it apart again and try remounting the CPU Waterblock, such a hassle tho

Jokes on you, but there is a drain port, on the back side of the distro plate . Also, to get the CPU/GPU out quickly, I have the Koolance QDC fittings.

 

I played now for about 45 minutes Sons of the Forest, here's a screenshot of HWINFO64.

 

 

Ok thats much better then!

[Duke01]

Okay, finally made it! I took the motherboard out again and reseated the waterblock. The thermal paste looked a bit like it wasn't spread optimally, so after a test installation that looked gorgeous, I reinstalled it. I am testing it right now.

 

8 hours ago, -rascal- said:

What is your pump speed / flow rate?

What I forgot to mention is that before, at idle, temperatures were around 30-40C with a fan speed of 525RPM and pump speed of 1200RPM. But when the CPU was running hot while gaming (90C+), the pump ran at full speed (4400RPM), the fans as well (2100RPM).

 

6 hours ago, NorKris said:

need to see GPU temp and Watt

 

700mhz on ur GPU...  thats strange...

Indeed, I haven't noticed it before. It could be because I limited the GPU power to 70% (based on a video from der8auer) and in-game FPS were capped at 120 FPS, because the game would crash if FPS were not capped. I'll test it today in the evening. For now, I have to watch over my bit over a year old nephew .

 

For the time being, here's a screenshot of a 10-minute Cinebench run after my little operation.

[NorKris]

that looks so much better man! good job

[Duke01]

1 hour ago, NorKris said:

that looks so much better man! good job

hanks, but I'm still skeptical. The tests were done right after I finished reseating the waterblock, when the water and all the components were still cold. I'm sure 10 minutes weren't long enough, but gaming to test it out will have to wait until the evening .

[NorKris]

Just now, Duke01 said:

hanks, but I'm still skeptical. The tests were done right after I finished reseating the waterblock, when the water and all the components were still cold. I'm sure 10 minutes weren't long enough, but gaming to test it out will have to wait until the evening .

true, 10m is not enough for a custom loop, only for a 240 aio or somthing.

 

but the fact that u got good contact now is proven by the lower temps at ALOT more  watt-wut-wut  

[Duke01]

Screenshot after 1h playing "sons of the forest"

 

 

Screenshot after 30 more minutes playing "sons of the forest" with glas panels removed.

 

 

13 hours ago, NorKris said:

700mhz on ur GPU...  thats strange...

I noticed its the intigrated GPU, the 4090 runs at 2745mHz.

 

 

 

Anyway, I think reseating the water block was a good idea. Temps didn't drop as much as I had hoped. I'm thinking about ditching the side-mounted distro plate and replacing it with a front-mounted one from EK. I also plan to replace the front glass panel and add three more fans: two on the side and one in the back.

Furthermore, I hope to get a less noisy D5 pump, which comes with the EK front distro plate, but it's a "compact" one. I'm not sure if it's any better than the EK-XTOP DDC pump I currently have.

Oh, and by the way, thank you very much to everyone who helped me out here

 

 

 

[NorKris]

need to have some GPU watt and temps but nice

 

[Duke01]

Good i still had HWINFO64 open, heres a screenshot of the GPU: