Alphacool ES RTX 5090 Reference 1-Slot-Design REV1 with Backplate GPU Water Block, G1/4, Chrome Plated Copper (10291)

The Alphacool ES RTX 5090 Reference 1-Slot-Design REV1 with Backplate is a GPU water block for Nvidia GeForce RTX 5090 graphics cards built on the Reference board. The MSI VENTUS 3X OC and the Inno3D X3 are two of them. It is a 1-slot cooler for servers and workstations with both G1/4 ports at the rear, and the carbon backplate is in the box.

Properties

• Fits: GeForce RTX 5090, Reference board
• Cold plate: Chrome-plated copper
• Top: Carbon
• Ports: 2 x G1/4, at the rear
• Slots: 1
• Backplate: Carbon, included

Compatibility

Alphacool lists these cards for this block:

• Inno3D GeForce RTX 5090 iChill Frostbite (C50903-32D7X-1759FB)
• Inno3D GeForce RTX 5090 iCHILL X3 (C50903-32D7X-175967H)
• Inno3D GeForce RTX 5090 X3 (N50903-32D7-17593928)
• Inno3D GeForce RTX 5090 X3 OC (N50903-32D7X-17593928)
• MSI GeForce RTX 5090 32G VENTUS 3X OC (MS-V530 VER:1.1)
• PNY GeForce RTX 5090 ARGB EPIC-X RGB Overclocked Triple Fan GPU
• PNY GeForce RTX 5090 ARGB EPIC-X RGB Triple Fan GPU
• PNY GeForce RTX 5090 Overclocked Triple Fan GPU
• PNY GeForce RTX 5090 Triple Fan GPU

The block was designed for one PCB layout, and card makers sometimes revise a board so that a cooler no longer fits later models. Before ordering, compare your card and its PCB number with the pictures in Alphacool's GPU configurator, or look it up in its Compatibility List for Nvidia cards. Note that Alphacool says this REV1 version of the ES RTX 5090 Reference 1-slot design with backplate has been redesigned to offer greater compatibility with other graphics cards. Alphacool's Core block for the RTX 5090 Reference board is the Core Geforce RTX 5090 Reference Waterblock.

Technical data cooler

• Dimensions total (L x W x H): 235.29 x 119.32 x 21.13 mm
• Material cooler: chrome-plated copper
• Material cooler top: Carbon
• Material terminal: Brass
• Material Connection thread: Brass
• Max working temperature: 60 °C
• Pressure tested: 4 bar
• Threads: 2 x G1/4
• Thickness cooler bottom: 3.25 mm
• Thickness cooling fins: 0.4 mm
• Distance cooling fins: 0.4 mm

Technical data backplate

• Dimensions (L x W x H): 224.79 x 119.32 x 3 mm
• Thick backplate without spacers: 1 mm
• Material: Carbon

Notes

• Alphacool asks that the block 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, and that this can void the manufacturer's warranty.
• Remove the original cooler on an antistatic mat and clean the card of thermal paste and pad residues before fitting the block.
• During assembly, make sure taller parts on the card have enough space around them.

In the box

• 1x Core Geforce RTX 5090 Reference 1-Slot-Design REV1 cooler
• 1x Backplate
• 2x 68x15x1mm Pad
• 1x 54x15x1mm Pad
• 6x 8x8x1mm Pad
• 2x 12x15x1mm Pad
• 1x 91.5x8x1mm Pad
• 1x 101x8x1mm Pad
• 1x Thermal Grease
• 1x Putty tool
• 1x PCIe Bracket
• 4x M2x8mm screws
• 7x M2x10mm screws