NZXT C1000 Gold Core - 1000W ATX 3.1 Power Supply - 80 Plus Gold - Cybenetics Platinum - Fully Modular - PCIe 5.1 600W 12V-2x6 - Zero RPM Fan - 105°C Capacitors - Black
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AI Verdict
A 1000W ATX 3.1, PCIe 5.1 600W 12V-2x6 power supply for high-end PC builds needing stable, quiet power.
This 1000W ATX 3.1 power supply is a strong fit for high-end PC builds, particularly those featuring modern NVIDIA or AMD GPUs that demand stable and efficient power delivery via the PCIe 5.1 12V-2x6 connector. Its Cybenetics Platinum efficiency and A+ noise rating ensure it performs well under load while maintaining quiet operation.
If 1000 watts is overkill for your components, consider an 850W ATX 3.1 PSU with similar efficiency and noise ratings to save on cost and potentially reduce overall system power draw.
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Pros
- Supports next-gen GPUs with an ATX 3.1 and PCIe 5.1 600W 12V-2x6 connector for stable power delivery.
- Achieves 80 PLUS Gold and Cybenetics Platinum efficiency, reducing heat and power draw under load.
- Operates with a Cybenetics A+ noise rating of 15–20 dBA for the C1000 model, featuring a Zero RPM fan mode for silent operation during light workloads.
- Features a fully modular design with individually embossed cables and included combs for streamlined cable management.
- Utilizes premium 105°C-rated capacitors for stable, long-lasting performance across various system loads.
- Backed by a 10-year warranty, indicating manufacturer confidence in durability.
Cons
- Lacks a -12V rail, though this is generally not a significant concern for modern systems.
- Demonstrated failure to maintain ATX voltage limits in a few brownout test cases, although unlikely to impact most workloads.
- Aftermarket cables are not universally compatible; using non-NZXT or CableMod cables can be problematic.
Dimension Scores
The 1000W output combined with 80 PLUS Gold and Cybenetics Platinum efficiency ratings, plus ATX 3.1 and PCIe 5.1 600W 12V-2x6 support, places it at the top tier for power delivery and energy conservation.
With a Cybenetics A+ noise rating (15-20 dBA) and a Zero RPM fan mode, this PSU is designed for near-silent operation, especially during low loads.
The inclusion of premium 105°C-rated capacitors and a 10-year warranty suggests a focus on durability and stable performance.
Its fully modular design, coupled with individually embossed cables and included cable combs, provides exceptional flexibility and ease for clean cable routing.
Best For
- High-performance gaming PCs with NVIDIA RTX 40-series GPUs or other high-wattage graphics cards.
- Workstations requiring stable and efficient power delivery for demanding tasks.
- PC builds prioritizing quiet operation, especially during low-load scenarios.
- Users planning for future GPU upgrades due to ATX 3.1 and PCIe 5.1 compliance.
Not Recommended For
- Budget-constrained PC builds, given its mid-range price band and high wattage.
- Systems with low power consumption that do not require 1000 watts.
- Users who frequently swap PSU cables with generic aftermarket options.
Watch Out For
- The power supply lacks a -12V rail, which, while not critical for most modern components, is a technical omission.
- During brownout testing, the unit failed to maintain ATX voltage limits in a few instances, though this is reported as unlikely to affect reliability for most users.
- Some users report general concerns about NZXT 1000W PSUs failing and the company not taking responsibility, though this is not specific to this ATX 3.1 model.
- Using aftermarket cables not specifically designed for NZXT PSUs can lead to compatibility issues, as pinouts on the PSU side are not standardized.
Full Specifications
| ASIN | B0FQ6MH33Q |
| Brand | NZXT |
| Color | Black |
| Series | C1000 Gold Core |
| Wattage | 1000 watts |
| Model Name | C1000 Gold Core |
| Form Factor | ATX |
| Item Weight | 7.37 pounds |
| Manufacturer | NZXT |
| Connector Type | ATX |
| Cooling Method | Air |
| Output Wattage | 1000 Watts |
| Compatible Devices | PC |
| Product Dimensions | 5.91 x 5.91 x 3.39 inches |
| Item Dimensions LxWxH | 5.91 x 5.91 x 3.39 inches |
| Item dimensions L x W x H | 5.91 x 5.91 x 3.39 inches |
What Buyers Say
This NZXT C1000 Gold Core PSU is built for modern, power-hungry systems, especially those with NVIDIA RTX 40-series GPUs, thanks to its ATX 3.1 and PCIe 5.1 12V-2x6 connector. Professional reviews highlight its strong performance, low voltage noise, and resilience during brownout tests, despite a minor technical detail about a missing -12V rail. The fully modular design and included cable combs make installation and cable routing straightforward, a common point of appreciation. While some general concerns about NZXT PSU reliability have surfaced in community discussions, these are not specifically tied to this particular ATX 3.1 model.
“Man, this thing is quiet, like, seriously quiet, and my 4090 is finally getting all the juice it needs without any weird power spikes, totally worth it for a clean build.”
Common Praise
- Delivers stable power with minimal voltage noise, even under demanding loads.
- The 12V-2x6 connector with dual-color housing provides a visual indicator of a secure connection.
- The 135 mm fluid dynamic bearing fan operates quietly, with Zero RPM mode for silent performance during light use.
- Fully modular cables simplify the building process and contribute to a cleaner aesthetic.
- The power supply demonstrates resilience to brownouts, maintaining stable operation.
- Comes with a 10-year warranty, offering long-term peace of mind.
Common Complaints
- The unit lacks a -12V rail, which is a technical detail noted in professional testing.
- During specific brownout tests, the PSU failed to maintain ATX voltage limits in a few instances.
- Aftermarket cable compatibility is limited; generic cables may not work due to non-standard pinouts on the PSU side.
- Some general community discussions mention past NZXT 1000W PSUs failing, though this is not specific to this ATX 3.1 model.
Ownership Tips
- The dual-color 12V-2x6 connector is actually pretty handy for quickly checking if your GPU is properly seated and powered.
- The Zero RPM fan mode really does keep things silent when you're just browsing or doing light work, the fan only kicks in under heavy gaming.
- Cable management is a breeze with the fully modular design and the included combs, making for a much tidier case interior.
- The 10-year warranty is a huge plus, knowing NZXT stands behind it for a decade makes the investment feel safer.
Frequently Asked Questions
Is this power supply compatible with older graphics cards?
Yes, it includes PCIe cables for older graphics cards, supporting up to three 8-pin PCIe cables for broad compatibility with NVIDIA and AMD GPUs.
What does ATX 3.1 certification mean for my PC?
ATX 3.1 certification ensures the power supply meets the latest standards for power delivery, offering improved stability and efficiency for high-performance components, especially modern GPUs.
How quiet is the NZXT C1000 Gold Core?
It has a Cybenetics A+ noise rating, meaning it operates between 15-20 dBA for the 1000W model, and features a Zero RPM fan mode for silent operation under light workloads.
What is the 12V-2x6 connector used for?
The 12V-2x6 connector is a PCIe 5.1 standard cable designed to deliver up to 600W of power to next-generation GPUs, such as NVIDIA RTX 40-series cards, ensuring safe and stable power.
Are the cables easy to manage?
Yes, it is a fully modular power supply, meaning you only connect the cables you need. It also comes with individually embossed cables and combs to help keep your build clean and organized.
What is the warranty period for this power supply?
The NZXT C1000 Gold Core is backed by a 10-year warranty, reflecting its high-quality construction and rigorous testing.
Buying Guide
When you're picking a power supply, you're basically choosing the heart of your PC. It needs to deliver enough stable power to all your components, especially your graphics card, without making a racket or failing under stress. Look for wattage that matches your system's needs, efficiency ratings to save on your electricity bill, and features like modular cabling for easier building. Don't cheap out here; a bad PSU can take other components with it.
Wattage (1000W)
This number tells you the maximum power the unit can supply. For high-end gaming PCs with powerful CPUs and GPUs, 1000 watts ensures you have plenty of headroom for stable operation and future upgrades, preventing system crashes or instability under heavy load.
ATX 3.1 & PCIe 5.1 12V-2x6
These are the latest standards for power supplies, crucial for modern graphics cards like NVIDIA's RTX 40-series. The 12V-2x6 connector specifically delivers up to 600W directly to these GPUs, ensuring they get the consistent, high power they need without using multiple adapter cables.
80 PLUS Gold & Cybenetics Platinum Efficiency
These ratings indicate how much power from the wall socket is actually converted into usable power for your PC, versus how much is lost as heat. Higher efficiency (like Platinum) means less wasted energy, lower electricity bills, and less heat generated inside your PC case.
Fully Modular
A fully modular PSU means you only plug in the cables your system needs. This drastically reduces cable clutter inside your PC case, improving airflow, making your build look cleaner, and simplifying the installation process.
Alternatives
If this PSU doesn't fit, search for power supplies with lower wattage (e.g., 750W or 850W) if your components don't demand 1000W, but still prioritize ATX 3.1 and PCIe 5.1 compliance for future-proofing, along with 80 PLUS Gold or Platinum efficiency ratings.
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