be quiet! Dark Power 13 750W Quiet Performance Power Supply | 80 Plus Titanium Efficiency | ATX 3.0 | PCIe 5 | Modular | BN659
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AI Verdict
This 750W ATX 3.0 PSU with 95.8% Titanium efficiency and native 12VHPWR is for quiet, high-end gaming PC builds.
This PSU is a strong fit for high-performance systems needing 750W, especially with its 95.8% Titanium efficiency and ATX 3.0 compliance for next-gen GPUs. The 10-year warranty also provides long-term peace of mind for a premium component.
If 750W is too close to your system's peak draw, consider a higher wattage Dark Power 13 model for more headroom.
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Pros
- Achieves up to 95.8% 80 PLUS Titanium efficiency, reducing power consumption and heat output.
- Includes a native 12VHPWR connector for PCIe 5.0 GPUs and handles power excursions up to double its rated power.
- Features 4 independent 12V rails with an overclocking key to switch to a single 12V rail for stability.
- Equipped with a frameless Silent Wings fan with fluid-dynamic bearing for quiet operation.
- Backed by a 10-year manufacturer's warranty, indicating component longevity.
- Fully modular cable management allows for cleaner builds and easier maintenance.
Cons
- Some users report the fan can be audibly loud or exhibit rattling, contradicting 'virtually inaudible' claims.
- Connectors can be extremely tight, creating a risk of damaging motherboard sockets or the PSU itself during installation/removal.
- A user reported a plastic SATA connector detaching when pulling out a cable.
- Considered pricier than some other premium PSUs with similar wattage and efficiency.
Dimension Scores
Achieves up to 95.8% 80 PLUS Titanium efficiency and handles power excursions up to double its rated 750W output.
Features a Silent Wings fan designed for virtually inaudible operation, but some user reports indicate audible fan noise or rattling.
Utilizes 105-degree C Japanese capacitors, active rectifier, full bridge LLC tech, and is backed by a 10-year warranty.
Offers fully modular cabling with sleeved cables, though some users found connectors to be extremely tight.
Best For
- High-end gaming PCs utilizing PCIe 5.0 GPUs and requiring ATX 3.0 compliance.
- PC builds where low noise output is a primary concern.
- Users seeking long-term reliability with a 10-year warranty.
- Systems where power efficiency is prioritized to reduce electricity costs and heat.
Not Recommended For
- Budget-conscious PC builds where cost is a limiting factor.
- Users who prioritize absolute silence and are sensitive to any fan noise, given some user complaints.
- Beginners who might struggle with tight cable connections.
Watch Out For
- Connectors are extremely tight, risking damage to motherboard sockets or the PSU itself during installation or removal.
- Some units exhibit fan rattling or are audibly loud at idle, despite 'virtually inaudible' claims.
- A user reported a plastic SATA connector detaching when pulling out a cable, suggesting potential fragility in some connectors.
Full Specifications
| ASIN | B0BV6FSFL9 |
| Brand | be quiet! |
| Wattage | 750 watts |
| Model Name | BN659 |
| Form Factor | ATX |
| Item Weight | 8.86 pounds |
| Manufacturer | be quiet! |
| Connector Type | atx,pcie |
| Cooling Method | Air |
| Output Wattage | 750 Watts |
| Item model number | BN659 |
| Compatible Devices | Gaming PC, High-end Desktop, ATX Motherboard, PCIe 5.0 GPU, 6+2 Pin GPU |
| Product Dimensions | 6.89 x 5.91 x 3.39 inches |
| Item dimensions L x W x H | 6.89 x 5.91 x 3.39 inches |
What Buyers Say
While advertised for its quiet operation, some users have reported unexpected fan noise, including rattling or being audibly loud at idle, which is a surprising drawback for a 'be quiet!' product. Despite this, the build quality, 95.8% Titanium efficiency, and ATX 3.0 compliance are consistently praised. The fully modular cables are appreciated for clean builds, but a few users noted the connectors are unusually tight, making installation and removal challenging. The 10-year warranty is a recurring point of confidence for buyers.
“Man, I shelled out for 'be quiet!' and this thing rattles sometimes, what gives? But hey, my 4080 is happy and it sips power, so I guess I'll live.”
Common Praise
- Achieves 95.8% 80 PLUS Titanium efficiency, saving on electricity.
- Includes native 12VHPWR connector for current and next-gen GPUs.
- Provides 750W continuous power with 4 independent 12V rails.
- Build quality is high, with 105-degree C Japanese capacitors.
- Comes with a 10-year manufacturer's warranty.
- Fully modular cables simplify system building and cable routing.
Common Complaints
- Fan can be audibly loud or produce rattling sounds, especially at idle.
- Connectors are extremely tight, making them difficult to plug in or remove.
- A plastic SATA connector detached when a user pulled out a cable.
- Perceived as expensive compared to other PSUs in its wattage class.
Ownership Tips
- The 'overclocking key' is a physical switch on the back, not a software setting, allowing you to combine the 12V rails for specific scenarios.
- The full-mesh front with a funnel-shaped air inlet is a design detail that actually helps airflow.
- The standby power draw is below 0.1 watts, which is a small but measurable saving over time.
- The sleeved cables feel premium and aid in a clean aesthetic, but their stiffness can make tight bends challenging.
Frequently Asked Questions
Does this PSU support the latest graphics cards?
Yes, it's an ATX 3.0 PSU with a native 12VHPWR connector for PCIe 5.0 GPUs, and it also includes PCIe 6+2-pin connectors for current-gen cards.
How quiet is the Dark Power 13 750W?
It features an improved frameless Silent Wings fan with a fluid-dynamic bearing designed for virtually inaudible operation. However, some users have reported audible fan noise or rattling in certain units.
What is 80 PLUS Titanium efficiency?
80 PLUS Titanium is the highest efficiency certification, meaning this PSU converts up to 95.8% of AC power into DC power, minimizing wasted energy as heat and reducing electricity costs.
Does this power supply have multiple 12V rails?
Yes, it has 4 independent 12V rails. There's also an 'overclocking key' that lets you switch to a single, powerful 12V rail for systems with extreme power demands.
What kind of warranty does this PSU come with?
The be quiet! Dark Power 13 750W comes with a 10-year manufacturer's warranty.
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 for all your components, especially your CPU and graphics card, without making a racket or wasting electricity. You want to match its wattage to your system's needs, but also consider its efficiency and how it handles power spikes, especially with modern GPUs.
Wattage (750W)
This is the total power your PSU can deliver. Too little, and your PC won't run or will crash under load. Too much, and you've spent money on unused capacity. 750W is suitable for many high-end gaming systems with a single powerful GPU.
80 PLUS Titanium Efficiency (up to 95.8%)
This rating tells you how much AC power the PSU converts into usable DC power, and how much is lost as heat. Titanium is the highest rating, meaning less wasted electricity, lower heat generation inside your case, and potentially quieter fan operation because it doesn't need to work as hard to cool itself.
ATX 3.0 / PCIe 5.0 (12VHPWR)
This is crucial for modern systems. ATX 3.0 is a new standard designed for the transient power spikes of current-gen GPUs, preventing system crashes. The 12VHPWR connector is a dedicated cable for PCIe 5.0 graphics cards, simplifying wiring and ensuring stable power delivery without adapters.
Modular
A modular PSU means you only plug in the cables you need. This reduces clutter inside your PC case, improves airflow, and makes building or upgrading your system much easier and cleaner than with non-modular or semi-modular units.
Alternatives
If this wattage is too low, look for PSUs with 850W or 1000W, maintaining ATX 3.0 and 80 PLUS Titanium or Platinum efficiency. If the price is too high, consider 80 PLUS Platinum rated units, which still offer high efficiency but at a lower cost.
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