Bykski N-ICH4090-X Full-Cover GPU Water Block + Backplate for Inno3D RTX 4090 iCHILL/Ice Dragon Super, X3 OC, AX Gaming X3W, G1/4, 5V A-RGB

Bykski N-ICH4090-X Full-Cover GPU Water Block + Backplate for Inno3D RTX 4090 iCHILL/Ice Dragon Super, X3 OC, AX Gaming X3W, G1/4, 5V A-RGB

TL;DR: The N-ICH4090-X is built around the shared PCB used by the Inno3D GeForce RTX 4090 iCHILL/Ice Dragon Super Edition, X3 OC 24GB, D X3, D Super and the AX Gaming RTX 4090 X3W and D X3W. A nickel-electroplated high-purity copper cold plate sits directly over the AD102 die, GDDR6X modules and VRM...

Common Applications

The N-ICH4090-X is built around the shared PCB used by the Inno3D GeForce RTX 4090 iCHILL/Ice Dragon Super Edition, X3 OC 24GB, D X3, D Super and the AX Gaming RTX 4090 X3W and D X3W. A nickel-electroplated high-purity copper cold plate sits directly over the AD102 die, GDDR6X modules and VRM stage, sealed beneath a PMMA acrylic top. The black anodized aluminum backplate adds rigidity and rear thermal coverage but never touches coolant. Top and bottom G1/4 port pairs allow either serial or parallel chaining, and the included 5V 3-pin A-RGB strip syncs to common motherboard headers.

Frequently Asked Questions

Q: Which RTX 4090 variants does the N-ICH4090-X actually fit?

A: Inno3D RTX 4090 iCHILL/Ice Dragon Super Edition, RTX 4090 X3 OC 24GB, RTX 4090 D X3, RTX 4090 D Super, and AX Gaming RTX 4090 X3W 24G and D X3W. These share the same PCB.

Q: What materials contact the coolant?

A: Nickel-electroplated high-purity copper cold plate with a PMMA acrylic top. The black anodized aluminum backplate is dry-side only.

Q: What is the port size and RGB standard?

A: Top and bottom G1/4 threaded ports for serial or parallel chaining, plus an installed 5V 3-pin addressable RGB (RBW) strip. Do not plug the strip into a 12V RGB header.

Q: What is included in the package?

A: One full-cover water block, one backplate, two plug fittings, an installation screwdriver, one lighting sync cable, and a Bykski thermal pad set.

Q: Are aluminum radiators safe in the loop?

A: No. The wet path is copper, so all radiators and fittings should be copper or brass. Aluminum in the same loop causes galvanic corrosion.