MANUAL | QUICK START GUIDE

CORSAIR XG3 RGB HYBRID

5080 / 5070 Ti / 5070 HYBRID GPU WATER BLOCK

XG3 50 Series GPU Water Block - QSG visual
Hydro_X_Series_Logo_608x180_Cropped CORSAIR_iCUE_LINK_Color_Logo_max-1000x400_Uncropped

BEFORE YOU START


 

IMPORTANT NOTICE: This Quick Start Guide is a general installation guide and does not cover specifics of various graphics cards' factory cooling solution’s disassembly and/or different XG3 RGB GPU Water Block variants.

Disassembly of the original heatsink and fan from any graphics card may result in voiding the warranty. Installation of an aftermarket product, such as the XG3 RGB HYBRID GPU Water Block, is generally likely to void a manufacturer warranty and CORSAIR is not able to cover hardware damage that occurs in case of user error during installation. Please follow this installation guide and make sure your exact GPU model is listed as compatible with the XG3 (you can check that by visiting the  coolyourgpu.com site).

CORSAIR recommends that you thoroughly leak-test your custom cooling system for at least 24 hours to ensure that the system is securely sealed and operating reliably. The CORSAIR warranty does not cover any hardware damage resulting from poorly executed, improper, and otherwise hasty assembly of your custom water-cooling system.

Disassembly of CORSAIR Hydro X Series products is highly discouraged due to the complex design of components. Such action may result in irreparable mechanical, electrical or chemical damage that may void the warranty.

For an exact and up-to-date product compatibility list, please refer to the CORSAIR website.

NOTE: iCUE version 5 or higher is required to control the smart features.

Please download the latest version of iCUE from www.corsair.com/downloads.

NOTE: iCUE LINK System Hub is needed in order to use the XG3 RGB HYBRID GPU Water Block.

Learn more about iCUE LINK System Hub from CORSAIR iCUE LINK System Hub.


PACKAGE CONTENTS


XG3_RGB

1x XG3 RGB HYBRID GPU Water Block

Screw_M2,5x5mm_1

2x M2.5x5mm Screws

Nut_Hex_M2,5

2x M2.5 Hex Nuts


Cable_iCUE_LINK_90_to_Straight_600mm

1x iCUE LINK 90° Cable 600mm

Washer lineart - QSG

8x Washers


PREREQUISITES (NOT INCLUDED)


Screwdriver lineart - QSG

Various Size Phillips-head Screwdriver(s) for Electronics

Hex_Socket

4mm Hex Socket
(depends on the graphics card make and model)

iCUE_LINK_System_hub_H

iCUE LINK System Hub


Operating_System_I

Microsoft Windows 11 or Higher

iCUE Logo in BW - QSG

iCUE Version 5 or Higher


REMOVAL OF THE HEATSINK FAN


  1. Unscrew all fasteners attaching the original heatsink fan assembly to the graphics card circuit board. Traditionally this includes:
    – Heatsink with fan
    – Backplate and / or front plate
    – I/O bracket reinforcement
  2. Disconnect all cables connecting the heatsink fan assembly to the graphics card circuit board (heatsink assembly fan(s) and (RGB) LED illumination).
  3. Wipe off any remains of the original thermal compound and pads until there are no leftovers on the graphics card circuit board and GPU. Use isopropyl alcohol if necessary.

WATER BLOCK INSTALLATION


  1. Remove the protective film from the thermal pads and place the XG3 RGB HYBRID GPU Water Block on a suitable smooth surface, e.g. packaging box, with aesthetic cover and fan facing down. Place it so that the front of the water block slightly overhangs the box. This is to prevent the graphics card’s protruding I/O ports from interfering with installation.
  2. Align the holes and carefully place the bare graphics card onto the XG3 RGB HYBRID GPU Water Block with the pre-installed thermal material.
  3. Secure the XG3 RGB HYBRID GPU Water Block assembly by reusing the original M2 screws that were used to secure the stock heatsink fan assembly, and fasten them with a Phillips-head screwdriver.
  4. Some graphics cards, notably NVIDIA® GeForce RTX™ models, also require you to fasten the I/O bracket to the circuit board after the installation of an aftermarket cooler. Secure this bracket by using the enclosed M2.5x5mm Screw (B) and an M2.5 Hex Nut (C).

NOTE: Some GPU boards use slightly longer standoffs. In these cases, place two washers (E) under each screw before fastening. For all other boards, washers are not required.

Water Block assembling for XG3 HYBRID 50 Series - QSG

FITTING AND TUBING INSTALLATION


  1. Install the two (2) appropriate CORSAIR XF G1/4-BSPP threaded-type fittings (not included) into the water block ports and tighten them by hand. Do not use any tools to tighten (e.g. pliers).
  2. Install appropriate tubing for your CORSAIR XF compression-fitting type and secure it using the locking ring to complete the addition of the water block to the water-cooling loop. Use the appropriate securing method when using fittings other than compression fittings.
NOTE: Do not forget to leak-test the system before fully powering on your PC.
XG3 50 Series GPU Water Block Fittings - QSG visual
a. Inlet Port
c. iCUE LINK Connector
b. Outlet Port  


CONNECTING AND USING THE INTEGRATED SMART FEATURES

NOTE: iCUE version 5 or higher is required to control the smart features.

Please download the latest version of iCUE from www.corsair.com/downloads.

You must have an iCUE LINK System Hub (H) to use the XG3 RGB HYBRID GPU Water Block (A).

  • Connect the included iCUE LINK 90° Cable (D) from the iCUE LINK header on the GPU block housing (A) to the iCUE LINK System Hub (H).

The XG3 RGB HYBRID GPU Water Block can be used with other iCUE LINK hardware by placing it anywhere on the channel string using a direct connection, Y-cable accessory, or 4-way splitter.

XG3 Water Block iCUE LINK Connection - QSG

SOFTWARE SETUP


1. INSTALL iCUE SOFTWARE

CORSAIR_iCUE_Color_Logo_403x210_Cropped

2. UPDATE iCUE SOFTWARE

  • Once iCUE is installed, run the software. The iCUE LINK XG3 HYBRID GPU Water Block will appear in the iCUE interface.
XG3 iCUE setup - QSG
  • If any of the connected devices need a firmware update, you will be prompted to perform an update via a notification in the top-right corner. You can also click the settings (cogwheel icon in the top right corner) and check for the software and firmware updates manually.
XG3 iCUE setup - QSG

3. LIGHTING SETUP

Choose which lighting effect will be displayed when the iCUE software is running:

  • Select iCUE LINK XG3 HYBRID from the navigation bar.
  • Select "Lighting Effects".
  • Select the desired lighting effect by clicking on one of the available options in the "Lighting Layers" panel or click on the "+" icon to add additional lighting effects.
XG3 iCUE setup - QSG

Choose which lighting effect will be displayed when the iCUE software is not running, usually during computer startup:

  • Select iCUE LINK XG3 HYBRID from the navigation bar.
  • Select "Lighting Effects".
  • Toggle the Device Memory Mode by clicking on the button.
  • Select the desired lighting effect by clicking on one of the available options in the "Lighting Type" panel, and click on the save icon.
XG3 iCUE setup - QSG

4. COOLING SETUP

Select your desired cooling presets for the fan on the iCUE LINK XG3 HYBRID GPU Water Block, or create your own custom curve:

  • Select iCUE LINK XG3 HYBRID from the navigation bar.
  • Select "Cooling".
  • Select a predefined cooling preset or add a custom one by clicking the "+" button in the "Cooling Presets" panel.
XG3 iCUE setup - QSG

Choose how your fans will perform when the iCUE software is not running, usually during computer the startup phase:

  • Select iCUE LINK XG3 HYBRID from the navigation bar.
  • Select "Cooling".
  • Toggle the Device Memory Mode by clicking on the button.
  • Add a custom cooling preset by clicking the "+" button in the "Cooling Presets" panel.
  • Choose one of the available options in the middle panel, customize the curve, and click on the save icon.
XG3 iCUE setup - QSG

5. ALERTS

The "Alerts" feature allows you to set custom alerts or trigger specific actions when your device reaches a certain temperature:

  • Select iCUE LINK XG3 HYBRID from the navigation bar.
  • Select "Alerts".
  • Choose one of the predefined alerts in the bottom "Alerts" panel or create a custom one by clicking the "+" icon.
  • Use the toggle switches to set the the temperature values for triggering a specific alert action.
XG3 iCUE setup - QSG

FREQUENTLY ASKED QUESTIONS


Is the XG3 RGB HYBRID water block compatible with my graphics card?

Support varies from model to model. Please consult http://www.coolyourgpu.com for an up-to-date list of supported models prior to installation.


Can I use the XG3 RGB HYBRID as a standalone part?

No, this is a water block for your graphics card which requires a complete custom water-cooling system, including a pump and radiator. For more information, please visit http://www.coolyourgpu.com.


Can I reuse the pre-applied thermal paste on the XG3 RGB HYBRID water block for re-installation?

Re-installation of the XG3 RGB HYBRID water block requires cleaning off the pre-applied thermal paste and apply a new layer of thermal paste. We recommend using CORSAIR XTM70, sold separately. However, the thermal pads can be reused.


What thermal paste is used on the XG3 RGB HYBRID?

CORSAIR XTM70 Extreme Performance Thermal Paste. Learn more.


WARRANTY


Warranty_3

The XG3 RGB HYBRID GPU water block has a 3-year warranty.


LEGAL


© 2025 CORSAIR MEMORY, Inc. All rights reserved. CORSAIR and the sails logo are registered trademarks of CORSAIR in the United States and/or other countries. All other trademarks are the property of their respective owners. Product may vary slightly from those pictured.