Parts for an RTX 3090 GPU

[YoXax]

Hi all,

I got a GPU with an Alphacool Eisblock ES ACETAL RTX 3080/3090, but I don't have any water cooling setup in my PC, and I have zero experience with this stuff, complete newbie.

From the research I did, I think I'll need the parts below. I hope someone knowledgeable can help to confirm or suggest additions/alternatives for things that don't fit?

1x Alphacool NexXxoS ST30 Full Copper 240mm Radiator
2x Alphacool Rise Aurora 120 mm Lüfter (120x120x25mm)
1x Alphacool Eisstation DC-LT incl. Alphacool DC-LT 2600 Silent
1x Alphacool Eisbaer TPV Extension Set 90° (hose and connections)
1x Alphacool Tec Protect 2 Clear 1000ml

 

[Eddy]

You can do this, but the extension set will not be enough. This is actually intended for expanding the AIO CPU. You would need 2 sets, but then the hoses would be extremely long.
I would strongly advise you to simply buy 4 connections and the hose separately. Otherwise the installation will be chaotic.
For the EI station with the DC-LT pump, I would consider not using a powerful pump like the Apex VPP/D5 with a proper expansion tank. You can use something like this for many years and then integrate the CPU later. The DC-LT would no longer be able to do this.

S13 Alphacool EPDM Tube 13/10 - Black 1m (3.28ft) Retailbox

Alphacool EPDM 13/10 hose for DIY water cooling, connects all components of a water circuit simply & functionally

shop.alphacool.com

4x https://shop.alphacool.com/en/shop/...cool-hf-13/10-screw-on-nozzle-g1/4-deep-black

There are various products for the expansion tank with Apex pump. I know the whole thing will be more expensive. But in the long term, it would be the far better choice.

 

[YoXax]

Ok so I'd get a hose like this one and cut it to individual pieces.
The GPU already has connectors, I guess I need just two more instead of 4?

Thanks for the advice about the pump. I'm looking to just setup the GPU, with the CPU (AMD Ryzen 5 5600X) I've never had heat issues and would rather not touch it.

 

[YoXax]

Ah I think 4 connectors indeed: 2 for the pump, 2 for the radiator.

 

[astaaa]

With the connectors, you cannot use the hose mentioned above, as you have hardtube connectors on your GPU. You would then have to get hose connections in size 13/10.

 

[YoXax]

Thanks! So I'll get two more connectors like this one to replace the current GPU connectors.

 

[YoXax]

Hi, I have one more concern: are the GPU connectors equivalent? I can't tell if one is input and other output, or of it's irrelevant.

 

[YoXax]

I connected everything, please have a look at this video.

The hose from the radiator to the input of the pump seems to trickle the liquid while working. When turned off the liquid goes from the pump up to the radiator. I've read about no air in the system so I'm not certain if this is normal or not?

It seems to be cooling fine, I ran a GPU test for 5-10 minutes and temp didn't go over 40 C.

https://imgur.com/a/WqpEoCU

 

[Eddy]

This is not normal. Can you show a picture from the complete system please?. You have tons of air in your loop.

 

[YoXax]

The connections are like this. I didn't see IN/OUT on the radiator so I connected it to whichever hose.

          ┌────────────────┐             
          │                │             
          │                │             
          │                ├──────────┐   
          │   RADIATOR     │          │   
          │                │          │   
          │                ┼──────────┼──┐
          │                │          │  │
          └────────────────┘          │  │
                                      │  │
                                      │  │
┌───────────────────┐                 │  │
│                   │                 │  │
│              OUT  ┼─────────────────┘  │
│       GPU         │                    │
│                   │                    │
│              IN   ├───────────────┐    │
│                   │               │    │
└───────────────────┘               │    │
                                    │    │
                                    │    │
                                    │    │
           ┌────────────────┐       │    │
           │                │       │    │
           │            OUT ┼───────┘    │
           │                │            │
           │    PUMP        │            │
           │                │            │
           │                │            │
           │            IN  ┼────────────┘
           │                │             
           └────────────────┘

 

[Eddy]

Please take a real picture so that you can really see everything. At the moment I can't explain why you have so much air in the hose. There should never be any air in the hoses.

 

[Luckystricker]

Hi @YoXax

Place the housing on the back and place the pump on the power supply cover for best results. Then open the entry screw and fill it. If the expansion tank is closed, the water can circulate more poorly if there is still so much air present.
As it is currently, it's not good for the pump because it constantly pumps air.

Best regards

 

[YoXax]

I have connected the pump to a SYS_FAN on the motherboard, but looking through the motherboard manual now I see that there's a PUMP_FAN connector which provides more power. Could this be the problem - not enough power for the pump? Unfortunately it's too far for the pump cable to reach it.

 

[Luckystricker]

Hey @YoXax

Of course you can go to the pump connection.

 

[YoXax]

Place the housing on the back and place the pump on the power supply cover for best results. Then open the entry screw and fill it. If the expansion tank is closed, the water can circulate more poorly if there is still so much air present.

That did the trick! I placed the PC horizontally, and took the pump out above the GPU/radiator. There are still some tiny bubbles left in the hose which I guess is not an issue.

 

[Luckystricker]

Hey @YoXax

No, over time the small bubbles migrate either into the expansion tank or up into the radiator. And there always has to be some air in the circuit to ensure pressure equalization.