Test: LC-Power LC1000P2 V3.1 – 1000-W Platinum Power Supply in an Extensive Real-World Review
- Introduction: Why this power supply is exciting
- Test System & Setup
- Unboxing, Design & Build Quality
- Connectors & Cables: Plenty of Options, Clearly Labeled
- Installation: Straightforward
- Fan, Acoustics & Temperatures
- Measurements: Total System Power Consumption
- Efficiency & Standby Consumption
- Voltage Stability & Electrical Quality (Practical Impressions)
- Everyday Use: Gaming, Work, Creative Loads
- Cable Management & Compatibility
- Design Details: The Little Things That Matter
- Strengths & Weaknesses
- 1000 W – Too Much, Too Little, or Just Right?
- Longevity & Warranty
- A Touch of Poetry from the Machine Room
- Practical Conclusion
- The promised key points (short & to the point)
- Final Thoughts
Introduction: Why this power supply is exciting
When building a high-performance system around a current high-end graphics card and a powerful Ryzen CPU, you quickly face the crucial question: Which PSU should you choose to combine performance, efficiency, and silence? The LC-Power LC1000P2 V3.1 promises exactly this combination: 80 PLUS Platinum, 10 years warranty (printed on the packaging), fully modular cable management, and Japanese capacitors – the classic buzzwords of a premium-class PSU. In this review, we don’t just look at datasheets and stylish slanted grills, but especially at real-world performance values and impressions in everyday PC use – from Windows idle to stress combinations of Prime95 and Furmark.
“Perfection is achieved not when there is nothing more to add, but when there is nothing left to take away.” – this quote, often attributed to Antoine de Saint-Exupéry, fits perfectly to the concept of a good power supply: invisible, unobtrusive, reliable.
Test System & Setup
For our measurements, the following hardware was used:
| Hardware | Manufacturer | Links |
| Mainboard | MSI MPG B850 Edge TI WiFi | |
| CPU | Ryzen9 9900x | |
| RAM | Crucial Pro DDR5 RAM 32GB Kit (2×16) 6000MHz | |
| SSD | Kingston 2TB PCIE4 NVME m.2 SSD | |
| CPU Cooler | LC-CC-120-DB6 | http://dataholic.de/lc-power-lc-cc-120-db6-cpu-kuehlers/ |
| GFX Card | MSI GeForce RTX 5070 12G Ventus 3x OC | |
| Power Supply | LC-Power LC1000P2 V3.1 Platinum Series 1000W | |
| Tower | Cougar Omnyx 382WA30.0001 | |
| Display | LC-M34-Q-C-PRO | https://dataholic.de/test-review-des-lc-power-monitors-lc-m34-q-c-pro/ |
| Keyboard | MSI Strike Pro Wireless | https://dataholic.de/fazit-msi-strike-pro-wireless/ |
| Mouse | MSI Versa Pro Wireless | https://dataholic.de/review-msi-versa-pro-wireless-dragon-light-gaming-at-its-finest/ |
| Mousepad | MSI True Gaming |
The entire system’s power consumption was measured at the wall. The evaluation covers typical scenarios from boot-up to the full-load duo of Prime95 and Furmark. The cables used came entirely from the LC1000P2 package.
Unboxing, Design & Build Quality
After the arrival of the admittedly large box, LC-Power makes a good first impression. The matte black packaging clearly highlights the PSU, seals, and features. Inside: well-padded, the unit is protected in an LC-Power-branded fabric pouch – safe from scratches. Additionally included: a set of black uniform cables, cable ties, a power cord, and a short manual.
The build quality feels premium: a brushed-like surface, diagonally milled fan grill, and a clean specification label on the back. With 180 mm length, it’s not ultra-short but easily ATX-compatible. The label lists typical values for this class: +12 V rail delivering up to 83.3 A / 999.6 W, +3.3 V and +5 V at 20 A each (combined 100 W), and +5 VSB at 3 A. LC-Power also advertises DC-to-DC technology, active PFC, and six safety circuitries (OVP/UVP/OCP/OPP/OTP/SCP).
In short: the LC1000P2 V3.1 looks and feels like a serious, modern PSU.
Connectors & Cables: Plenty of Options, Clearly Labeled
The back panel offers a fully modular port layout with clear labeling:
- M/B (24-Pin ATX)
- CPU (two 4+4-Pin EPS connectors)
- PCIe (classic 6+2-Pin connectors)
- PCIe 5.1 (for the latest 12V-2×6/12VHPWR cable)
- Peripheral/SATA (ample ports for drives & accessories)
Practical highlight: Sufficient PCIe cables are included to power even older high-end GPUs without PCIe 5 connectors – for example, an RTX 3090 with three 8-pin sockets. At the same time, the PCIe 5.1 interface supports modern 12V-2×6 GPUs. No adapter tinkering required.
The flat cables are black, reasonably flexible, and easy to route. Builders aiming for a clean look will appreciate the consistent dark design.
Installation: Straightforward
Installing the PSU in the Cougar tower case took only minutes: slide it into the PSU shroud, screw it in, connect the necessary modular cables – done. With fully modular design, you only install what you need. No surprises, no oddities. Exactly as it should be.
Fan, Acoustics & Temperatures
LC-Power uses a 135 mm fan that operates quietly in daily use. In idle or light office workloads, the system – including case fans – is virtually silent. Under gaming load, a gentle airflow noise appears but is never intrusive. The tone is free from humming or coil whine, and we detected no electrical noise from the PSU itself.
In short: “Quiet even under load” is accurate – especially in a well-ventilated tower, the LC1000P2 V3.1 remains a discreet companion.
Measurements: Total System Power Consumption
The following table shows measured wall power consumption of our test system under various scenarios:
| Scenario | Power Consumption (W) | Load on 1000 W PSU |
|---|---|---|
| Boot | 241.5 | ~24.2 % |
| Idle (Windows) | 118.2 | ~11.8 % |
| Office (Browser, Docs) | 238.0 | ~23.8 % |
| Gaming | 384.5 | ~38.5 % |
| Prime95 (CPU Load) | 264.0 | ~26.4 % |
| Furmark (GPU Load) | 374.6 | ~37.5 % |
| Prime95 & Furmark (Combined) | 487.2 | ~48.7 % |
| Off (Soft-Off/S5) | 2.1 | ~0.21 % |
Interpretation:
– In gaming scenarios, the PSU typically runs at 35–50 % load – the sweet spot for Platinum units.
– Idle and office work stay far below that, where efficiency is still important.
– Combined stress from Prime95 & Furmark hit 487.2 W – leaving ample headroom below 1000 W. Perfect for handling transient spikes or future GPU upgrades.
Efficiency & Standby Consumption
LC-Power advertises “High efficiency up to 92 %”. With 80 PLUS Platinum, this PSU is tuned for high efficiency at mid-loads. Our results align: system consumption values are consistently low for the given CPU/GPU class.
One note: Soft-Off (S5) = 2.1 W. This is slightly higher than some competitors (often 0.2–1.0 W). Over a year, this adds up to a minor difference, but for users extremely concerned with standby savings, it’s worth mentioning. On the other hand, 118.2 W idle draw for our full system indicates solid part-load efficiency.
Voltage Stability & Electrical Quality (Practical Impressions)
We didn’t measure ripple with lab equipment but observed in real use:
- System stability: No crashes or odd behavior under full load, load changes, or idle.
- Cold boot: Startup peak of ~241.5 W is well within expectations; all fans and devices powered reliably.
- Connectors: Cables latch firmly, especially EPS and PCIe 8-pin connectors, with solid build quality.
- Temperatures: The PSU case remained only warm to the touch, consistent with its quiet fan profile.
Conclusion: The LC1000P2 V3.1 delivers stable, reliable power as expected of a 1000 W Platinum-class PSU.
Everyday Use: Gaming, Work, Creative Loads
In gaming at UWQHD, power draw hovered around 380–390 W. The PSU remained cool and quiet. Notably, sudden load spikes were handled smoothly without abrupt fan ramps – separating acoustics from gameplay and reducing perceived noise.
In office workloads (browser, documents, light apps), consumption was ~238 W under use and 118 W in idle. For creative tasks like rendering, the Prime95 test result of 264 W confirms efficient, unobtrusive operation.
“My favorite things are the ones that just work.” – This sentiment applies perfectly to the LC1000P2 V3.1 in daily use.
Cable Management & Compatibility
The flat modular cables route neatly behind the motherboard tray. 24-pin cable length is sufficient for mid-towers, while EPS cables easily reach top-mounted connectors. For GPUs:
- Plenty of 6+2-pin PCIe connectors for triple-8-pin GPUs like RTX 3090, without adapters.
- PCIe 5.1 connector on the PSU panel for 12V-2×6 cable – future-proof for next-gen cards.
Result: “Straightforward installation” and flexible support for both older and new GPUs. Future upgrades won’t require a new PSU.
Design Details: The Little Things That Matter
- Finish: Slightly rough, scratch-resistant coating hides fingerprints well.
- Front grill: Diagonal vent design looks stylish and maximizes airflow.
- Labeling: Bright, clear port labels – easy to read even in dim lighting.
- Quality seals: Stickers for QC/Hi-Pot/ATE testing add confidence.
These small touches highlight attention to detail.
Strengths & Weaknesses
Strengths
- Quiet under load – fan profile is smooth, unobtrusive.
- Stable power delivery in all scenarios, with headroom for spikes.
- Easy installation – fully modular, flat flexible cables.
- Excellent connectivity: Legacy 8-pin GPU support and PCIe 5.1 for modern GPUs.
- Premium features: Japanese capacitors, DC-to-DC, six protection circuits, active PFC.
- 10-year warranty (as advertised).
Neutral
- Slightly high standby draw: 2.1 W in Soft-Off.
- Length (180 mm): Fine for mid-towers, check for space in compact builds.
1000 W – Too Much, Too Little, or Just Right?
Even in worst-case combined loads, the system used only ~50 % of PSU capacity. This was intentional: modern GPUs and CPUs can produce transient spikes far above rated TDP. A robust 1000 W unit absorbs these comfortably. Running in the 40–60 % load range is where Platinum PSUs shine: efficient and quiet. For high-end builds with upgrade paths in mind, 1000 W is a safe, future-proof choice.
Longevity & Warranty
LC-Power prominently advertises a 10-year warranty. Combined with Japanese capacitors and DC-to-DC conversion, this indicates strong long-term reliability. Warranty alone doesn’t prove lifespan, but it shows confidence in the platform.
A Touch of Poetry from the Machine Room
A power supply isn’t a showpiece. It doesn’t shine in RGB, nor does it generate FPS. But at night, when only the fans hum and the system breathes calmly, you feel the quiet strength holding everything together. The LC1000P2 V3.1 is like a well-oiled heart: steady, strong, unobtrusive – exactly what a heart should be.
“The greatest art is to show no art.” – an old craftsman’s motto that fits perfectly here.
Practical Conclusion
The LC-Power LC1000P2 V3.1 proves to be a well-rounded high-end PSU, combining silence, headroom, and flexibility. In everyday use it’s quiet, under stress it’s reliable, and installation is hassle-free. With ample PCIe connectors for old triple-8-pin GPUs and PCIe 5.1 support for new-gen GPUs, it bridges both worlds. Efficiency is excellent, though the 2.1 W standby draw is slightly higher than ideal.
For builds with Ryzen 9 CPUs and powerful RTX GPUs, this PSU offers a solid foundation. With plenty of power buffer and a 10-year warranty, it delivers the confidence and stability expected from a 1000 W Platinum-class unit.
Pros
- Very quiet in daily use
- Stable power delivery, no issues under stress
- Fully modular, high-quality cables, flexible options
Neutral
- 2.1 W in Soft-Off: slightly elevated
- 180 mm length: check dimensions in small cases
Recommendation
For gaming and creator PCs in the upper mid-range and high-end class, the LC-Power LC1000P2 V3.1 is a clear recommendation. Anyone who values silence, headroom, and compatibility will find a worry-free daily driver here. If you frequently cut power to your PC completely using a power strip, the standby consumption doesn’t matter anyway; everyone else has to live with 2.1 W – a small concession to an otherwise very well-rounded package.
The promised key points (short & to the point)
- Brand: LC-Power
- Model: LC1000P2 V3.1
- Quiet even under load: yes, very pleasant fan behavior
- Stable power delivery: yes, no irregularities in our real-world test
- Straightforward installation: fully modular, flexible flat cables
- Slightly elevated power draw when switched off: 2.1 W
- Enough cables even for older graphics cards: yes, multiple 6+2-pin lines in addition to PCIe 5.1
Final Thoughts
A good power supply is not a luxury – it’s the foundation for a relaxed PC experience. The LC-Power LC1000P2 V3.1 fulfills this condition with clarity: quiet, robust, and well-equipped. Anyone who buys today and plans to upgrade tomorrow will be well prepared here.
Note: All measurements are taken from our specific test system (see above) and represent total wall power draw. Other setups may vary depending on CPU/GPU, motherboard efficiency, BIOS version, case ventilation, and peripherals.
Transparency Note (according to EU regulations):
The LC-Power LC1000P2 V3.1 presented in this review was provided to us by LC-Power as a non-binding loan for testing purposes. This is not paid advertising. LC-Power had no influence on the content, evaluation, or editorial independence of this article. All opinions expressed are based solely on our own practical experiences. We would like to thank LC-Power for providing the unit and for their trust in dataholic.de.