CORSAIR HX1000i SHIFT CRYSTAL

Congratulations on the purchase of your new CORSAIR power supply!

The HX1000i SHIFT CRYSTAL features transparent panels that reveal its pristine internals, a 140mm RGB fan, and premium sleeved cables. PinProtect+ per-pin overcurrent protection (OCP) helps protect the GPUs and includes a native 12V-2x6 cable. With iCUE LINK System Hub integration, Cybenetics Platinum-rated efficiency, and side-mounted connectors, it is built for high-performance, visually striking PC builds.​

PinProtect+ 12V-2x6 Overcurrent Protection (OCP) monitors the current on each pin of the 12V-2x6 connection in real time, and if the current exceeds a threshold on any of the pins for a prolonged period it limits the power to the GPU, causing GPU to turn itself off to prevent any potential damage. You can customize the protection settings in iCUE, or turn overcurrent protection off completely.

When the protection is triggered, you will notice your screen becomes black and the fan spins at full speed and RGB lighting turns red. Please power down your PC using the AC switch. Check that your GPU power connector is fully seated before powering up your system again.

Learn more about PinProtect+

OVP for the 12V, 5V, and 3.3V DC outputs is required to comply with the ATX specification. OVP shuts down the PSU in the event that the DC outputs exceed a set level, determined by the PSU manufacturer.

OCP is featured on the 3.3V, 5V, and 12V rails. OCP ensures that the output of the DC voltage rails remains within safe operating limits.

OTP ensures that the PSU will shut down when the internal temperature reaches a set point. This is usually as a result of internal current overloading or a fan failure.

A short circuit is defined as any output impedance of less than 0.1 ohms. Amongst other things, SCP ensures that the PSU shuts down should the 3.3V, 5V, and 12V rails short to any other rail, or to ground. It also ensures that no damage should occur to the unit, or your PC’s components in the event of a short.

OPP shuts off the PSU when the power drawn is between 115% and 135% of the rated power.

SIP protects the PSU and connected components against sudden voltage surges and limits excessive inrush current when the PSU is first switched on.

UVP protection for the 12V, 5V and 3.3V DC outputs is required to comply with the ATX specification. UVP shuts down the PSU in the event that the DC outputs drop below a set level.

If you are building a new system, skip to Step 2.

• Disconnect the AC power cord from your wall outlet or UPS and from the existing power supply.
• Disconnect all the power cables from your video card, motherboard, and all other peripherals.
• Follow the directions in your chassis manual and uninstall your existing PSU.

• Follow the directions in your chassis manual and install the power supply with the screws provided.

• Connect the 18-pin and 10-pin ends to the corresponding PSU connectors labeled MOTHERBOARD.
• Connect the 24-pin end to the 24-pin ATX power socket on your motherboard.

• Connect the 8-pin end to any PSU connector labeled CPU / PCIe.

• Connect the 8-pin end to any PSU connector labeled CPU / PCIe.

• Connect the 90° 12-pin end to any PSU connector labeled 12V-2x6.

2x 8-pin GPU Socket

• Connect both 6+2-pin ends directly to the 8-pin PCIe sockets on the GPU.

• Connect the 90° end of the cable to any PSU connector labeled 12V-2x6.
• Connect the other end to the GPU.

• Connect the 6-pin end to any PSU connector labeled SATA / PATA.

Dual-Tone 12V-2x6 Connector

The HX1000i SHIFT CRYSTAL includes a 12V-2x6 GPU power cable with dual-tone connector. This dual-tone design features gray tips on the ends of the cable to give you visual confirmation the cable is fully inserted. For proper installation of the cable, insert each end into the PSU/GPU until you feel it click into the retention mechanism, and inspect each end of the cable to make sure there is no gray portion of the connectors visible. If you can still see any gray on the end of the cable after you've connected both ends, remove the cable and reinsert it until there is no gray visible on either end of the connection.

Connect the AC power cord to the PSU and turn it on by pushing the switch to the ON position (marked with “I”).

The HX1000i SHIFT CRYSTAL power supply includes a built-in iCUE LINK System Hub, so you can connect up to 24 iCUE LINK devices directly to the power supply without needing a separate System Hub. You can connect any compatible iCUE LINK device directly to the HX1000i SHIFT CRYSTAL power supply using either iCUE LINK port.

• If you are using an iCUE LINK CPU Cooler, connect the 2-pin, single-wire tach cable (1) to your HX1000i SHIFT CRYSTAL PSU. Connect the other end of the cable to the CPU_FAN header on the motherboard.
• Connect your iCUE LINK devices to the HX1000i SHIFT CRYSTAL PSU using the provided iCUE LINK cables (2). Use either of the two iCUE LINK ports for this connection.

• Connect the USB Type-C Cable (3) to the USB input of the HX1000i SHIFT CRYSTAL PSU.
• Connect the other end of the USB Type-C (3) to a USB 2.0 header on the motherboard.

The HX1000i SHIFT CRYSTAL power supply supports iCUE software, allowing you to monitor power settings, switch between single-rail and multi-rail overcurrent protection (OCP), and create custom fan profiles.

Download and install the latest version of iCUE software.

• Once iCUE is installed, run the software. The HX1000i SHIFT CRYSTAL and iCUE LINK SYSTEM HUB tiles will appear in the iCUE interface.

• If any of the connected devices need a firmware update, you’ll be prompted to perform the update via a notification in the top right corner. To check for firmware updates manually, click the settings icon (cog wheel) in the top right corner, then select Device Settings.

• Hover over the HX1000i SHIFT CRYSTAL tile.
• Click "Lighting Effects."

• If present, click an existing layer in the "Lighting Layers" panel to edit it, or click on the "+" button to create a new lighting layer.
• Select the desired lighting effect by clicking one of the available options in the "Lighting Type" panel.

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

• Toggle the Device Memory Mode by clicking the button.
• Select the desired lighting effect by clicking on one of the available options in the "Lighting Type" panel.
• Click on the memory card icon to save the setting.

By default, the HX1000i SHIFT CRYSTAL runs in Zero RPM Mode, meaning the cooling fan will remain off under low to moderate loads. If you prefer additional cooling, you can manually set a custom fan speed that will override Zero RPM Mode's settings, so when the load increases, the fan will turn on at the speed you set instead of the default. This allows you to set a fan speed percentage, which will activate the fan immediately at that level.

• Select "Cooling" in the left-hand panel.
• Create a custom cooling preset by clicking the "+" button in the "Cooling Presets" panel.
• Set a minimum fan speed for that preset.

PinProtect+ tile allows you to monitor the quick health status of 12V-2x6 connection. By default the option is turned on but you can turn it off by clicking the toggle switch (not recommended).

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

• Toggle the "Device Memory Mode" by clicking the button.
• Use the "PinProtect+" toggle switch to turn protection on or off.
• Select the desired setting by clicking on one of the available options in the "Cooling Presets" panel or click the "+" button to create a custom preset.
• Click on the memory card icon to save the setting.

Using the PinProtect+ feature, you can configure advanced safety and performance thresholds for your power supply :

• Select "PinProtect+" in the left-hand panel.
• Use the "Enable PinProtect+" toggle switch to turn protection on or off.
• Choose a current threshold value from 7A to 10A (default: 9.5A).
• Set the GPU shutdown delay between 10s and 180s.

You can also check the PinProtect+ event log by clicking the "Open" button.

HX1000i SHIFT CRYSTAL PSU use Multi‑Rail protection by default. For more flexibility with high-power components, overclocking, or stress-testing, you can switch to Single‑Rail OCP.

• Click either of the two "cog" icons to access the "Settings window".

• Select the HX1000i SHIFT CRYSTAL PSU tile.
• Toggle between Single Rail OCP and Multi-Rail OCP under PSU Mode.

Create custom profiles to trigger alerts and automated behaviors at specific temperatures:

• Select the HX1000i SHIFT CRYSTAL PSU tile in the top bar.
• Select "Alerts".
• Create a custom alert preset by clicking the "+" button in the "Alerts" panel.
• Set the the temperature values for triggering a specific alert action.

New Device Detection

If you are setting up your iCUE LINK ecosystem for the first time, or adding a new device to the system, you will need to make sure the new device is properly installed:

• Click either of the two "cog" icons to access the "Settings" window.

• Select the iCUE LINK SYSTEM HUB tile.
• Click Start next to Device Enumeration to detect all connected devices.

• Close the "Settings" window and select the iCUE LINK System Hub tile in the top bar.
• In the "Setup Wizard" overlay, click "Run Wizard" at the bottom.
• Follow the wizard's instructions. When prompted at the end, click "Restart Now" to restart iCUE.

Lighting Setup

The Lighting Setup page within iCUE LINK System Hub will show all connected iCUE LINK devices and let you reorder them to match their physical placement in your system:

• From the Home screen, click on the iCUE LINK System Hub thumbnail.
• Select "Lighting Setup".
• Reorder the connected iCUE LINK devices to suit your preference.

CORSAIR HX1000i SHIFT CRYSTAL PSU has a 10-year warranty.

© 2026 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.