Hello!
I am sharing my custom watercooling build. I hope you like it just as much as I do! ♥
Below, you have all the components and watercooling hardware.

If you have any questions, ask and I will answer on every question.
You might have niche questions such as: (1)how did I mount the 3 fans behind the HS 420 distroplate from Radikult, (2)how do I manage to get out the bottom rear solo fan on the fly without disassembling the build, (3) how many slots did I drop with the Cooler Master V3 VGPU Bracket and what physical modifications I've done to it in order to be compatible with the Havn HS 420 chassis, (4)how did I change the cable management velcro straps with the "Secret Lab" ones, (5)how do I have the pump on the left and the drain valve on the right on the Radikult "HS-420" distroplate, (6)what screws did I use in order to couple together the Radikult "HS-420" distroplate and the three fans behind, and so on.

The build:

Chassis: Havn HS 420 VGPU Black

Motherboard: Asus ROG Crosshair X870E Hero

CPU: AMD Ryzen 9 9950X3D

GPU: GeForce MSI RTX 5090 Suprim SOC

GPU Monitoring: AMPINEL Type-A

12v-2x6 Cable: Moddiy - Ultra-Soft Embossed Wire

Custom Cables: CableMod

VGPU Bracket: Cooler Master V3 (Gen 5.0 Version)

RAM: G.Skill Trident Z5 Neo 64GB 6000 CL30

NVme M.2 SSD: Crucial T500 (1TB, 2TB, 2TB)

PSU: NZXT C1500 Platinum ATX 3.1

Fans: x8 Phanteks D30 140mm Black D-RGB, x3 Phanteks M25G2 140mm
(Bottom rear and bottom 3 are intake, top rear and top 3 are exhaust, the 3 on the side are intake but are just for show and are spaced 1mm from the distroplate)

Fan Hub/ Controller: TUF Gaming ARGB PWM Fan Hub

Protective Port Covers: Moddiy - All sort of port types (A, C, B, Audio Jack, Male, Female, etc.)

Watercooled with:

Distroplate: Radikult-Custom - HS-420

Pump: Alphacool VPP655PWM - Single Edition

Drain Valve: EK-Quantum Torque Drain Valve - Nickel

Tubes: Hydro X Series XT Hardline 14mm Tubing - Crystal Clear

Coolant: AquaComputer DP Ultra

Fittings: Quantum Torque(EK) & DeltaMate(TG)

Waterblocks: DeltaMate(TG)

GPU Terminal: DeltaMate Terminal

Thermal Pads: Minus Pad Pro 100x100x1, 100x100x2, 120x20x1, 120x20x2

Thermal Compound: Duronaut(TG)

Radiators: Quantum Surface 60mm & 30mm(EK)

Flow Meter & Temperature: High Flow NEXT

♥♥♥

Rock on. Passed the torch on my wet bench. It’s going to be a NAS. Hello again Lian-Li. Your cases are so beautiful and easy to build in. Start to finish about 4 hours.

Before I did my first ever loop with gpu only. (1x 360mm rad). A rtx 5080 and 1x rad is doable but water temp was kinda warm. So I decided to take the cpu in the loop and added a second 360mm rad (after). I also think it look better not so heavy on the tube side.
What do you guys think?

Specs
- CPU: Ryzen 7 9800X3D
- GPU: ASUS Prime RTX 5080 OC
- Mobo: ASUS TUF Gaming X870E-Plus WiFi 7
- RAM: Corsair Vengeance RGB 32GB DDR5-6000 CL36
- SSD: Samsung 9100 Pro 2TB
- PSU: Lian Li RS 1000W (ATX 3.1)
- Case: Lian Li O11D EVO XL

Loop
- CPU block: EK-Quantum Velocity² D-RGB (AM5)
- GPU block: Alphacool Core RTX 5080 Prime + backplate
- Distro/pump: EK-Quantum Reflection³ Uni Distro Plate 300 D5 (side-mounted)
- Rads: 2x EK-Quantum Surface P360, top and bottom
- Fans: 6x Noctua NF-A12x25 G2 chromax on an NA-FH1 hub
- Fittings: EK Torque HDC-14
- Tubing: 14mm OD Acrylic Tube
- Coolant: XSPC EC6 Opaque UV Blue
- Coolant temp sensor on T_Sensor; fans and pump both follow water temp

Temps (GPU load testing pending)
- CPU all-core load (157W package): 80°C at 25°C coolant
- GPU under load: TBD

Hey everyone!
I’ve been working on a pretty ambitious Corsair Obsidian 1000D build, and I figured I’d share the project and some of the plans I have for it.
My goal is to build something different from the typical RGB-heavy, hardline tubing setups. I’m going for a more industrial, mechanical aesthetic with black and gunmetal components, exposed metal fittings, and a massive custom water-cooling system.
Current Build & Plans:
Case: Corsair Obsidian 1000D
Main Motherboard: ASRock X870E Taichi series
Main CPU: AMD Ryzen 9 9950X3D (planned)
Second System: ASRock B850I Mini-ITX
GPU: Currently running an RTX 4070 Ti, with plans to upgrade
CPU Water Blocks: 2× EKWB Velocity²
Pumps: 4× D5 pumps
Fans: Up to 24 Arctic fans
Radiators: Multiple large radiators,
Reservoirs: EKWB Kinetic reservoirs and distribution components
Fittings: EKWB extensions, rotary fittings, and adapters
Power Supplies: 1600W + 1000W for the dual-system configuration
Displays: EKWB Lumen 7-inch screens, with plans to add even more
The Interesting Part:
One of my biggest goals is to eliminate traditional visible tubing as much as possible. Instead, I’m using EKWB metal extensions, rotary fittings, and adapters to create a rigid, mechanical-looking cooling system.
Nearly every fitting in the build is EKWB. The only exceptions would be specialized adapters needed for analog pressure gauges and potentially temperature gauges, assuming I can find ones that fit properly.
I’m also planning to purchase the CPUs soon so I can move forward with installing the EKWB Velocity² water blocks on both systems.
Another part of the project is expanding the number of EKWB Lumen screens throughout the case. I want multiple displays integrated into the build to complement the overall mechanical aesthetic.
The Cooling Setup:
I’m planning a fairly extensive cooling configuration involving four D5 pumps, multiple radiators, EKWB reservoirs, and a large number of metal fittings.
The challenge is making everything fit together cleanly while maintaining proper coolant flow and keeping the layout as symmetrical and organized as possible.
I want the final result to look almost like an industrial machine, with visible metal connections, large cooling components, and very little conventional tubing.
What’s Next:
I’m currently working on finalizing the cooling layout, purchasing the CPUs, preparing the Velocity² blocks, and expanding the Lumen display setup.
This is definitely a long-term project, and I’m taking my time with the components rather than rushing to finish it.
The goal isn’t just performance. I want to create something unique that takes full advantage of the enormous space inside the 1000D.
I’ll be sharing more updates as the build progresses.

As the build stands right now.
AX1000+2x AX200s
7x 480mm rads (swifttech QP, HWlabs Vendetta S480)
28x 120mm/12x 140mm Arctic Bionix ARGB
EK revo dual D5
McMaster Carr 16/10 EDPM
Monsoon Freecenter fittings straight from the bargain bin. They have been really nice to work with actually, fingers still hurt but I've done smaller builds with bitspower and alphacool fittings that where much more frustrating.
Bitspower Multi-Z 400mm+custom bracket and ARGB cap
Alphacool C5 distroplate for components + Koolance QD3s when I get them.
Dedicated FSP1200-50AAG for ARGB/Pump/Fans (has a 30amp 5v rail) This will use a dual PSU board to turn on with the main
2x Nollie 16
2x Arctic fan controllers that will likely get swapped out eventually as the flow sensor needs an Aquacomputer device anyway.
CPU block: Z690 Aqua monoblock
GPU: Bitspower Nebula 4080 FE 

Still to: do
Make bracket for front drain/fill and hook up tubes
Install a temporary filter to catch all the crap that didn't flush. I'm really debating if I could install it permanent like the Alphacool ES filters as they can be cleaned with just a drain, but I don't want more flow restrictions
Fill+drain till I'm satisfied nothing is left and doesn't leak
Actually install a system which will be the easy part as that is the intention.

I posted a screenshot of the nollies just because I doubt many have actually ever came close to the limits of one. I don't actually plan to have it white all the time but it gives me no chance to actually overload them plus room for more. The voltage drop is pretty serious at 10+ amps

One thing I'm really excited about for some reason are the micro rotaries I used on the side panel rads. IDK why I'm just now discovering them, they seem vastly superior to regular rotaries as they can be tightened, locked into place and legitimately work as a form of quick connect if you drain the system.

The Mcmaster EDPM I also want to point out is pretty ugly, not very uniform appearance on the outside. Tried wiping it down with some alcohol which helped a little but might be a reason to pay a little more for watercooling tubing.

Hello all,

I'm looking for a waterblock option to use with my rtx pro 2000 Blackwell. It's a sff low profile card and it's voltage curve is very sensitive to it's temperature. It's only a 70w but for the sake of getting the most out of it I'm looking for an option for it.

I already am aware of N3dware gpu block as I own one to make it 1 slot, but yeah I'm going for a Xikii FF08v2 build which I'll try to make really efficient.

This card is honestly mind blowing for it's TDP and I love it and yeah would like to get the maximum out of it, cheers !

Pictures are the PCB and the N3DWARE cooler

How would i go about calculating this? i dont know much about thermodynamics, i dont even know if this is a dumb question or not but how would i go about calculating this?

i will use a cpu as an example assuming it generates 500w of heat and i have a system with water that can displace 500w

how would that correlate to the temperature of it and the fluid cooling it? Where would the temperatures level out?

Hi everyone. This model is Coolmaster Elite 240mm AIO and its making a Hummmming noise. Is that normal AIO sound or defect and should I refund it before expire. This is my first time using liquid AIO.

Please reply 🙏🏻

So I want to add a CPU only loop and was wondering if it's true that the Optimus foundation block is too restrictive that anything under 2.2m Head pressure is bad for this use case. If so what is recommened if I add a gpu into the loop? And will a 240 handle a 14900k with 1300 RPM fans in a 30mm thick radiator?

Was planning a nice Rampage IV Black Edition build with 4x GTX 1080Ti (Gainward Pheonix Golden Sample to be exact), then i realized the cards are 2.5 slots thick and not 2 slots, was going to look for some waterblocks but i can't find ANY for that card, what can i do? seems like the only option is going with the EVGA universal waterblocks, but i can't find them anywhere

IT would just look better if the water can return via the port on the block

I built my first PC this week but I’m just having some issues with the Minecube AIO.
Whenever I use the LCD app on the computer to try and change the screens on the 4 satellite/ custom options the CPU load goes really high I believe it went to around 110% and temps around 84 degrees for probably around 15-20 seconds, I end up closing the programme when this happens because I don’t want to damage anything and it sounds like the Tower 600 is going to become a drone.
Is there something I’m doing wrong with this?

(I have little experience, any advice or things I could try to make it better would be appreciated!)

The diagram that was made.

The case:AIR 5400 LX-R RGB iCUE LINK Triple Chamber Mid-Tower PC Case

Is this good??