CORSAIR HX1500i Fully Modular ATX 3.1 Power Supply - Ultra-Quiet

In this review the CORSAIR HX1500i is examined as a high-capacity, low-noise power supply aimed at builders who need reliable, modern power delivery for high-end GPUs and CPUs. The bottom line: it is for system builders who want an ATX 3.1 and PCIe 5.1 compliant PSU with strong efficiency and flexible monitoring; the single biggest reason to buy is the combination of Platinum efficiency and near-silent operation provided by the 140mm fluid dynamic bearing fan and Zero RPM mode.

Key Features

• Fully Modular Cabling: Enables clean, tidy builds by letting you attach only the cables required for your system, reducing clutter and improving airflow.
• ATX 3.1 & PCIe 5.1 Compliance: Meets the latest power delivery standards so it better handles transient spikes and modern GPU demands for long-term stability.
• Cybenetics Platinum Efficiency: High efficiency reduces wasted heat and improves power costs and thermal performance for sustained loads.
• 140mm Fluid Dynamic Bearing Fan: Delivers quiet, long-lasting cooling and when paired with Zero RPM mode provides near-silent operation at low and medium loads.
• CORSAIR iCUE Software: Lets you create custom fan curves, monitor power settings and toggle OCP modes on-the-fly for tailored performance and protection.
• Japanese 105C Capacitors & 10-Year Warranty: Components and warranty back long-term reliability for serious builds and upgrades.

Who It's For

The HX1500i is best for high-end desktop builders, workstation users, and enthusiasts running power-hungry GPUs or multi-GPU configurations who need an ATX 3.1 compliant supply with strong voltage stability and monitoring capability. Its fully modular design also appeals to anyone who values clean cable management and quiet operation.

It may be more PSU than necessary for budget or entry-level gaming rigs that draw modest power; users on a tight budget or those who do not need ATX 3.1 compliance should consider lower-capacity models to save cost and chassis space.

Pros & Cons

Pros

• Excellent power delivery and voltage stability suitable for high-end GPUs and CPUs.
• Very quiet operation thanks to the fluid dynamic bearing fan and Zero RPM mode at light to medium loads.
• Robust monitoring and control via CORSAIR iCUE for custom fan curves and OCP configuration.
• High build quality with Japanese 105C capacitors and a long 10-year warranty.

Cons

• Overkill for entry-level systems; the performance and cost are best justified in high-power builds.
• Large-capacity PSUs like this can be bulky in smaller cases and require planning for cable routing.

Specifications

Brand	CORSAIR
Model	HX1500i (2025)
Form Factor	ATX 3.1 compliant
Efficiency	Cybenetics Platinum (80 PLUS Platinum)
Fan	140mm Fluid Dynamic Bearing with Zero RPM mode
Cabling	Fully modular cabling
Warranty	10 years

Our Verdict

The CORSAIR HX1500i is a strong choice for enthusiasts and professionals who need reliable, modern power delivery with quiet operation and advanced monitoring. Its combination of ATX 3.1 compliance, platinum efficiency and modular cabling makes it good value for high-end builds where stability and low noise matter.

Frequently Asked Questions

Is this PSU suitable for top-tier gaming GPUs?
Yes. Its ATX 3.1 and PCIe 5.1 compliance and strong power delivery make it suitable for high-end GPUs and heavy multi-component systems.

Can I run the fan in zero RPM mode permanently?
Zero RPM mode engages automatically at low and medium loads for near-silent operation; under heavier loads the fan will spin to maintain safe temperatures.

Does it include cables and mounting hardware?
The box contents list the HX1500i power supply, DC cable kit, power cord and mounting hardware for installation.