Corsair HX1500i Fully Modular Ultra-Low Noise ATX Power Supply - ATX 3.1 & PCIe 5.1 Compliant - Fluid Dynamic Bearing Fan - CORSAIR iCUE Software Compatible - 80 Plus Platinum Efficiency - Black
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AI Verdict
This 1500-watt, 80 Plus Platinum, ATX 3.1 & PCIe 5.1 compliant power supply is for high-end systems needing stable power delivery and digital control.
This power supply is a strong fit for users building extreme performance systems with high-wattage components, especially those leveraging ATX 3.1 and PCIe 5.1. Its 1500-watt capacity and Platinum efficiency are tailored for demanding loads, while iCUE integration offers granular control over power delivery and fan behavior.
If 1500 watts is overkill, look for a lower wattage ATX 3.1 and PCIe 5.1 compliant PSU with 80 Plus Gold or Platinum efficiency to save on cost and potentially size.
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Pros
- Delivers exceptional electrical characteristics with 0.9% voltage regulation on the 12V rail.
- Operates virtually silently at low and medium loads due to Zero RPM fan mode.
- Achieves over 94% efficiency at 50% load, exceeding 80 Plus Platinum requirements.
- Fully modular cabling simplifies system building and airflow management.
- iCUE software enables custom fan curves and real-time power monitoring.
- Includes dual 12V-2x6 cables, supporting next-generation GPUs.
Cons
- Its 200mm length exceeds standard ATX dimensions, potentially limiting case compatibility.
- The 1500W capacity is often overkill for systems with mid-tier components or a single GPU.
- iCUE software can be buggy and may require troubleshooting for some users.
- Some users report the fan can become audible under heavy system loads.
- The number of PCIe 8-pin connectors might necessitate purchasing additional cables for multiple high-power GPUs.
Dimension Scores
Achieves over 94% efficiency at 50% load and is 80 Plus Platinum certified, with exceptional electrical characteristics across all measured parameters.
Features Zero RPM fan mode for silent operation at low/medium loads, and a 140mm FDB fan for quiet performance, though some noise is reported under heavy load.
Constructed with premium 100% Japanese 105°C-rated electrolytic capacitors and backed by a 10-year warranty.
Fully modular cabling allows users to connect only necessary cables, promoting clean builds and improved airflow.
Best For
- High-end gaming rigs with multiple power-hungry GPUs.
- Professional workstations requiring stable, consistent power delivery.
- PC builds focused on minimal noise output during light to moderate use.
- Users who want digital control and monitoring of their power supply via software.
Not Recommended For
- Compact or small form factor PC builds due to its 200mm length.
- Budget-conscious builders, given its high price point.
- Systems with modest power requirements (e.g., single mid-range GPU, basic CPU).
Watch Out For
- The 200mm length of the PSU can prevent installation in smaller ATX cases, requiring careful measurement before purchase.
- Some users find the iCUE software to be unstable or difficult to use, leading to frustration with fan control or monitoring features.
- Despite its 'ultra-low noise' claim, the 140mm fan can produce noticeable noise when the system is under sustained heavy load.
- If you're running multiple high-power GPUs, you might need to buy extra PCIe 8-pin cables beyond what's included to fully power your setup.
- The 1500-watt capacity is significantly more than most systems need, meaning a portion of your investment might be unused if your components draw less power.
Full Specifications
| ASIN | B0BZ1JPSF7 |
| Brand | Corsair |
| Color | Black |
| Series | HX1500i |
| Wattage | 1500 watts |
| Model Name | HX1500i |
| Form Factor | ATX |
| Item Weight | 5.3 pounds |
| Manufacturer | Corsair |
| Connector Type | atx,pcie |
| Cooling Method | Air |
| Output Wattage | 1500 |
| Item model number | CP-9020261-NA |
| Compatible Devices | Monitor, Personal Computer |
| Product Dimensions | 7.87 x 5.91 x 3.39 inches |
| Item Dimensions LxWxH | 7.87 x 5.91 x 3.39 inches |
| Item dimensions L x W x H | 7.87 x 5.91 x 3.39 inches |
What Buyers Say
The 200mm length of this power supply is a recurring point of concern, with users needing to verify case compatibility before purchase. While its 1500-watt output and ATX 3.1 compliance are praised for future-proofing high-end builds, some question if the wattage is overkill for their needs. The iCUE software, while offering control, has been noted for occasional bugs or a less-than-intuitive interface. Despite its 'ultra-low noise' branding, a few users have experienced audible fan noise when the system is pushed to its limits.
“Man, this thing is a beast, but seriously, measure your case first because it's LONG. My iCUE sometimes acts up, but when it works, the control is sick. My 4090 eats power, and this doesn't even flinch, but yeah, it cost a pretty penny.”
Common Praise
- Exceptional voltage regulation, with 0.9% on the 12V rail.
- Near-silent operation during typical desktop use thanks to Zero RPM fan mode.
- High efficiency, often exceeding 94% at moderate loads.
- Fully modular design makes cable routing and organization straightforward.
- iCUE software provides detailed monitoring and customization options for fan curves and OCP.
- The inclusion of dual 12V-2x6 cables directly supports modern, power-hungry GPUs.
Common Complaints
- The 200mm length can make installation difficult or impossible in certain PC cases.
- iCUE software can be buggy and frustrating to use, requiring troubleshooting.
- Fan noise becomes noticeable under heavy system loads, contradicting the 'ultra-low noise' expectation for some.
- The high wattage is often unnecessary for typical gaming or workstation setups, leading to a higher cost for unused capacity.
- Some users found the number of included PCIe 8-pin connectors insufficient for multiple high-power GPUs, necessitating extra cable purchases.
Ownership Tips
- The 200mm length is a real factor; it barely fit in my mid-tower, making cable routing a tight squeeze.
- iCUE software updates sometimes introduce new bugs or reset custom fan curves, requiring re-configuration.
- Even with Zero RPM, under a sustained gaming session, the fan does kick in and you can hear it, though it's not obnoxious.
- The braided cables with low-profile combs are a nice touch for aesthetics and management, but I still needed to buy an extra 8-pin for my second GPU.
- The sheer weight of the unit is noticeable when handling, so ensure your case has adequate support.
Frequently Asked Questions
Is this power supply compatible with NVIDIA's latest RTX 40-series GPUs?
Yes, it is ATX 3.1 and PCIe 5.1 compliant, and includes dual 12V-2x6 cables, making it compatible with the latest high-power graphics cards.
Can I control the fan speed of this power supply?
Absolutely. The CORSAIR iCUE software allows you to create custom fan curves and monitor power settings directly from your desktop.
Does this power supply make noise?
It features a Zero RPM Fan Mode, meaning the 140mm fluid dynamic bearing fan switches off entirely at low and medium loads for near-silent operation. Under heavy load, the fan will spin up, and some users report it can become audible.
What kind of warranty does this power supply come with?
Corsair backs the HX1500i with a 10-year warranty, covering defects and ensuring long-term reliability.
Is the HX1500i suitable for a compact PC build?
Probably not. Its 200mm length is longer than many standard ATX power supplies, which can cause compatibility issues in smaller or more compact PC cases.
Buying Guide
When buying a power supply, you're essentially picking the heart of your PC. It needs to supply enough wattage for all your components, especially your graphics card and CPU, without straining itself. Efficiency ratings like 80 Plus Platinum tell you how much power it wastes as heat, which impacts your electricity bill and how hot your case gets. Also, consider the physical size and modularity for easier building and better airflow.
Wattage (1500 watts)
This is the total power your PSU can deliver. Think of it like the horsepower of a car; more wattage means it can handle more demanding components or multiple high-power parts without breaking a sweat. For most systems, 1500W is a lot, usually reserved for extreme builds with multiple top-tier GPUs.
80 Plus Platinum Efficiency
This rating indicates how efficiently the power supply converts AC power from your wall outlet to DC power for your PC. Platinum means it's very efficient (at least 89% at 100% load, 92% at 50% load), wasting less energy as heat and potentially saving you a bit on your electricity bill over time. It's like getting more miles per gallon.
ATX 3.1 & PCIe 5.1 Compliant
These are the latest industry standards for power supplies, crucial for compatibility with new, power-hungry graphics cards. ATX 3.1 ensures it can handle rapid power spikes from modern GPUs, preventing system instability, and PCIe 5.1 means it has the correct 12V-2x6 connector for these cards.
Fully Modular
A fully modular power supply lets you detach every single cable that isn't needed. This is a huge win for cable management, making your PC build cleaner, improving airflow inside your case, and generally making the whole process less frustrating. It's like having custom-fit cables for your specific needs.
Alternatives
If this unit is too powerful or too long, look for a fully modular ATX 3.1 and PCIe 5.1 compliant power supply with 80 Plus Gold or Platinum efficiency in a standard ATX length (typically 140mm-160mm) and a wattage closer to your system's actual peak draw.
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