Alphacool NexXxoS XT45 Full Copper 1260mm SuperNova and quick disconnect

[rintintin78]

Hello,
I would like to purchase an Alphacool NexXxoS XT45 Full Copper 1260mm SuperNova with 9 x 140mm fans, but I have a few questions I would like to clarify before placing my order.

1. Is there enough space in the central row to route the fan cables? I'm concerned that cable management might be difficult or problematic.
2. I would also like to purchase an Alphacool Panama HF38 Pass-Through PCIE Slot Cover. On the side that is mounted inside the case, can I directly connect an Alphacool Eiszapfen 16/10mm fitting (29886), or is an adapter required?
3. On the outside of the case, I would like to connect a quick disconnect directly to the Panama HF38. However, I'm not sure which model I should choose, considering that I would like to connect it directly to the Panama bracket and then to an Alphacool Eiszapfen 16/10mm fitting (29886).

There are several options available, such as Alphacool Article No. 17368, 17561, or 17282. Which one would you recommend? Are any additional adapters required?
I hope you can help me clarify these points so I can complete my order correctly.
Thank you in advance for your assistance.
Best regards,

 

[Eddy]

Hi,

To answer your questions:

1. Fan cables: Routing the cables will be tricky because the fans sit right next to each other. I’d look for fans with open frames. With a bit of effort, you should be able to run the cables between them, though it’ll still be a tight fit.
2. Internal fittings: You can screw the fittings directly into the Panama HF38 on the inside of the case. You don’t need an adapter. We also offer a newer ES slot cover (part no. 5100099) with a cable pass-through into the case and slightly better coolant flow than the Panama. View the ES slot cover
3. External quick disconnects: The ones you picked are our largest and heaviest options. I’d go with the BLH1A series. They’re smaller, lighter, and offer virtually no flow restriction. To screw them directly into either slot cover, choose the versions with a standard male thread. The bulkhead versions are designed for a different type of mounting.
   You’ll need one 13876 set and one 13857 set. Screw the male and female quick-disconnect halves from one set directly into the slot cover. The other set provides the matching halves, each with a standard G1/4″ thread for attaching a fitting such as your Eiszapfen 16/10 mm fittings.

Have fun with the build!

 

[rintintin78]

Hi,

To answer your questions:

1. Fan cables: Routing the cables will be tricky because the fans sit right next to each other. I’d look for fans with open frames. With a bit of effort, you should be able to run the cables between them, though it’ll still be a tight fit.
2. Internal fittings: You can screw the fittings directly into the Panama HF38 on the inside of the case. You don’t need an adapter. We also offer a newer ES slot cover (part no. 5100099) with a cable pass-through into the case and slightly better coolant flow than the Panama. View the ES slot cover
3. External quick disconnects: The ones you picked are our largest and heaviest options. I’d go with the BLH1A series. They’re smaller, lighter, and offer virtually no flow restriction. To screw them directly into either slot cover, choose the versions with a standard male thread. The bulkhead versions are designed for a different type of mounting.
   You’ll need one 13876 set and one 13857 set. Screw the male and female quick-disconnect halves from one set directly into the slot cover. The other set provides the matching halves, each with a standard G1/4″ thread for attaching a fitting such as your Eiszapfen 16/10 mm fittings.

Have fun with the build!

Hi Eddy,
Thank you for your advice! I just have one question regarding the 13857 and 13876 sets.
Are you suggesting that I purchase both sets and mix the components together, so that one half of the 13857 set connects:

to the corresponding half of the 13876 set:

Thanks again for your help!
Best regards

 

[Eddy]

That’s right. This way, you can screw the part with the male thread directly onto the panel and use the counterpart with a G1/4" female thread to attach any fitting you like — in your case, the 16/10mm fitting.

 

[rintintin78]

That’s right. This way, you can screw the part with the male thread directly onto the panel and use the counterpart with a G1/4" female thread to attach any fitting you like — in your case, the 16/10mm fitting.

Hi Eddy,

Thank you for your valuable advice. I’d like to ask you one more question about the Alphacool NexXxoS XT45 Full Copper 1260mm SuperNova.

Would you recommend using 9 × 140mm fans or 4 × 200mm fans? Also, would it be possible to estimate the delta T difference between these two configurations, assuming the 200mm fans run at 400 RPM and the 140mm fans at 600 RPM, with the pump speed kept the same in both cases?

Keep in mind that with my current setup, consisting of three 360mm radiators with 120mm fans running at 800–900 RPM, I'm currently getting a delta T of around +16°C.

Thank you!

 

[Eddy]

Personally, I would generally avoid using 200mm fans. Take a look at the fan blades: with a 200mm fan, there is a much larger dead area around the edges. Also, 200mm fans always generate significantly less static pressure. Bigger isn’t always better.

I can’t tell you how much of a difference that would make to your delta T. Any number would be purely speculative and would only apply to a specific scenario that, in the worst case, could be very different from yours.

Incidentally, a single 140mm fan running at 600 RPM is always quieter than a 200mm fan running at 400 RPM. I’d actually run the 140mm fans at 400 RPM. They would still perform better than the 200mm fans, simply because they generate much more static pressure. However, you’re generally unlikely to get much below your current delta T of 16°C. That’s a threshold beyond which the effort required to reduce it further increases progressively.

How much total heat are you planning to dissipate through the radiator?

 

[rintintin78]

Personally, I would generally avoid using 200mm fans. Take a look at the fan blades: with a 200mm fan, there is a much larger dead area around the edges. Also, 200mm fans always generate significantly less static pressure. Bigger isn’t always better.

I can’t tell you how much of a difference that would make to your delta T. Any number would be purely speculative and would only apply to a specific scenario that, in the worst case, could be very different from yours.

Incidentally, a single 140mm fan running at 600 RPM is always quieter than a 200mm fan running at 400 RPM. I’d actually run the 140mm fans at 400 RPM. They would still perform better than the 200mm fans, simply because they generate much more static pressure. However, you’re generally unlikely to get much below your current delta T of 16°C. That’s a threshold beyond which the effort required to reduce it further increases progressively.

How much total heat are you planning to dissipate through the radiator?

800watt

 

[Eddy]

800W isn’t much for an external SuperNova 1260. It’s designed to handle up to around 3000W, and if you really push it with very high-speed fans, it can dissipate considerably more heat than that though at high coolant temperatures.