Details
The Alphacool ES RTX PRO 4000 Blackwell 1-Slot-Design is a GPU water block for the Nvidia RTX PRO 4000 Blackwell graphics card, which Alphacool lists as the PNY RTX PRO™ 4000 Blackwell GPU. It is a 1-slot cooler for workstations and dense server racks, with both G1/4 ports on the rear, and the aluminum backplate is in the box.
Properties
- Fits
- PNY RTX PRO™ 4000 Blackwell
- Cold plate
- Chrome-plated copper (Cu-HCP)
- Top
- Carbon
- Ports
- 2 x G1/4, on the rear
- Slots
- 1
- Backplate
- Aluminum, included
Compatibility
Alphacool lists this card for this block:
- PNY RTX PRO™ 4000 Blackwell GPU
The cooler is designed for one specific PCB layout, and the manual warns that design revisions may affect compatibility. Before ordering, compare your card with the pictures in Alphacool's GPU configurator, or look it up in its Compatibility List for Nvidia cards.
Made for servers
Alphacool developed this ES 1-slot GPU water cooler for professional use in performance-optimized server environments. With the compact 1-slot design and carefully placed ports, Alphacool says it meets the highest standards in cooling performance, reliability and ease of installation. That counts most in dense rack installations with limited space. Alphacool calls it the ideal solution for enterprise applications where performance, reliability and efficient space management are top priorities.
Carbon top and chrome-plated copper
The top of the cooler is made from lightweight, durable carbon. Alphacool says this significantly reduces the overall weight compared to conventional solutions, and that the matte carbon finish gives a subtle, high-quality appearance, functional and elegant in equal measure. The cooling block itself is made entirely of chrome-plated copper. According to Alphacool, the chrome plating is considerably harder and more durable than traditional nickel plating. It protects against corrosion, scratches and mechanical impact, which Alphacool calls ideal for long-term 24/7 operation.
Ports on the rear
The inlet and outlet sit on the rear of the cooler to save space. Alphacool says this connection layout simplifies tubing and integration into existing cooling loops, even in very compact server chassis.
Water flow
An optimized internal channel structure carries the heat away from the GPU, the VRAM and the voltage regulators, and Alphacool describes the heat dissipation as highly efficient. The targeted channel routing inside the cooler is there to give a uniform water flow across all critical components. Alphacool says the solid copper base ensures optimal heat absorption and transfer, and that the robust chrome plating prevents flaking or damage under thermal stress.
What the loop needs
The cooler has two G1/4 connections with brass threads, both on the rear. Each takes one of the compression fittings for your tube size, which are not in the box. Alphacool gives 1.00 Nm as the maximum torque for the G1/4 thread. The backplate, the thermal pads, thermal grease, a putty tool and the screws come with the cooler.
Technical data
| Dimensions (L x W x H) | 264.30 x 94.70 x 20.70 mm |
| Slot size | 1 |
| Material cooler | Chrome-plated copper (Cu-HCP) |
| Material Backplate | Aluminum (AlMg1SiCu) |
| Material terminal | Brass (CuZn39Pb3) |
| Threads | 2x G1/4 |
| Material connection thread | Brass (CuZn39Pb3) |
| Maximum torque G1/4 thread (in Nm) | 1.00 |
| Maximum torque M2 thread (in Nm) | 0.13 |
| Maximum torque M4 thread (in Nm) | 1.12 |
| Maximum operating temperature (in °C) | 60 |
| Minimum operating temperature (in °C) | -20 |
| Maximum tested pressure (in bar) | 4.00 |
| Recommended working pressure (in bar) | 0.00 - 2.00 |
| Thickness of cooling fins (in mm) | 0.40 |
| Distance between cooling fins (in mm) | 0.40 |
| Cooling technology | Jet engine |
Technical data thermal pads
| Thermal conductivity of thermal pads (in W/mK) | 7 |
| Thermal pads Hardness ASTM 2240 | 35 Shore 00 |
Technical data thermal paste
| Volatilization Rate (24H@200°C)% | less than 0.5 |
| Density (g/cc) | 3.2 (Test method ASTM D792) |
| Viscosity (mPa.s) | 150~200*10³ (Test method ASTM D2196) |
| Continuous Using Temperature (°C) | -40 °C to 120 °C |
| Breakdown Voltage (V/mil) | 250 (Test method ASTM D149) |
| Thermal Impedance (°C in 2/W) | 0.1 +/- 0.01 (Test method ASTM D5470) |
| Max. working pressure (psi) | 40 |
| Quantity | 1 g |
| Color | Gray |
Notes
- Place the graphics card on an antistatic surface to remove the original cooler, and work slowly where thermal adhesive is used.
- Clean the GPU, the memory and the contact areas of thermal paste and pad residue before fitting the cooler, for example with isopropyl alcohol.
- Remove the plastic transport spacers before assembly.
- During installation, make sure all components have sufficient clearance and the cooler does not damage the card.
- Alphacool asks that the cooler be used only with clear, transparent water cooling fluids. It warns that the particles and additives in pastel liquids can clog and permanently damage radiators, pumps, coolers and hoses, which can also void the manufacturer's warranty.
In the box
- 1x Alphacool ES RTX PRO 4000 Blackwell 1-Slot-Design GPU Cooler
- 1x Backplate
- 10x M2x10mm Screw
- 1x 56x15x1mm Pad
- 2x 28x15x1mm Pad
- 1x 75x8x1mm Pad
- 1x Thermal Grease
- 1x Putty tool
- 2x 28x15x1.5mm Pad
- 1x 56x15x1.5mm Pad
- 1x 75x8x2mm Pad
- 1x 30x30x2mm Pad
Alphacool's manual and data sheet for this cooler are PDFs. There is also a 3D model (an STP file) that you can turn in Alphacool's 3D viewer.
