Unboxing review of the ROG Loki SFX-L 1000W Platinum power supply/ dual platinum certification, with a textured fully modular cable

The ROG Loki SFX-L 1000W Platinum, ASUS’s initial SFX-L power supply, has cleared the Intel ATX 3.0 specification and inherently supports 12VHPWR cables. Its ultra-compact dimensions of 125 x 125 x 63.5 mm make it compatible for installation in ITX cases. The renowned organizations, 80 Plus and Cybenetics, have validated its conversion rate at the platinum level. The original 600W 12VHPWR textured modular cable provides a steady power supply for RTX 30/40 series GPUs. The installation of this single cable is not only straightforward and aesthetically pleasing but also has a premium feel.

ROG Loki SFX-L 1000W Platinum Power Supply Specifications:
Specifications: ATX 3.0
Input Voltage (AC): 100-240Vac
Output Voltage (DC): +3.3V +5V +12V -12V +5Vsb
Dimensions: 125 x 125 x 63.5 mm
Fans: 120mm dual-ball axial fan
Conversion rate certification: 80 Plus Platinum, Cybenetics Platinum
Power cable: Fully modular embossed cable
Warranty: 10 years
Protection system: OPP/OVP/SCP/OCP/OTP
Cable connector: 1x 24 Pin motherboard connector , 2x 8 Pin CPU connector, 1x 12+4 Pin 12VHPWR connector, 3x 6+2 Pin PCIe connector, 6x SATA connector, 4x Peripheral

ROG Loki SFX-L 1000W Platinum power supply out of the box

Within the ASUS ROG power supply product line, the models that currently meet the Intel ATX 3.0 specification and inherently support 12VHPWR cables are only the ROG STRIX AURA and the ROG Loki SFX-L presented today. For those seeking a mainstream option, the TUF Gaming 1000W Gold ATX 3.0 version is available.

The premium ROG Loki SFX-L 1000W Platinum comes in power capacities of 1000W, 850W, and 750W. For those interested in building a white-themed computer, the ROG Loki SFX-L 850W White Edition Platinum is available.

The ROG Loki SFX-L 1000W Platinum has cleared the Intel ATX 3.0 specification and holds a double-platinum conversion efficiency certification from 80 Plus and Cybenetics. It comes with native 16Pin 12VHPWR cables for users intending to use with NVIDIA RTX 30/40 series graphics cards. It employs an Aura Sync-customizable 120mm ARGB axial fan, providing stable cooling performance and a unique look to the ROG Loki SFX-L. Moreover, the product comes with a ten-year global warranty for after-sales service.

ROG Loki SFX-L 1000W Platinum in a box, ATX 3.0 architecture, 10-year global warranty, 80 Plus Platinum certified.
The back of the box contains various product features.
The boxed package indicates the load range and the number of power supply connectors.

The ROG Loki SFX-L 1000W Platinum distinguishes itself from typical ATX power supplies by adopting the smaller SFX-L specification, a common choice for ITX cases. With its compact dimensions of 125 x 125 x 63.5 mm, it’s still capable of powering high-demand components such as the RTX 4090 and i9 13900K.

One side of the power supply features a reflective mirror with the inscription “ROG SFX-L 1000W”. It’s paired with the “Republic of Gamers” brand and the eye of faith cover, creating a distinctive layered aesthetic. However, it’s worth noting that the mirror only provides a reflective effect and doesn’t display the wattage like the Thor series after power-on. The direction of the power supply fan is oriented downwards, mimicking the standard bottom-mounted power supply installation. If your case’s power compartment has a viewing window, you’ll be able to see a large ROG embossed logo.

The power supply fan is placed upwards, and you can see the mirror-shaped design on the side.
There is a big ROG logo on the common bottom power supply.

Despite being an SFX-L specification power supply, the Loki is equipped with a 120mm axial fan to assist in cooling the internal PCB chip. The axial fan boasts an extended lifespan and double ball bearings. At loads of 40% or less, it will automatically stop, leveraging the 0dB smart fan function for a remarkably quiet usage experience.

Visible through the foreign object isolation grid, the internal components include a silver brushed ROG heatsink to aid heat dissipation. The ROG Loki SFX-L 1000W Platinum has cleared the new ATX 3.0 specification certification. ATX 3.0 is capable of delivering twice the power in a very brief time (100μs). The primary focus of the ATX 3.0 specification is to enhance the requirements for Power Excursion, also known as the instantaneous peak power consumption POWER SPIKE/PEAK POWER. The PCIE CEM organization noted that the Power Excursion of future generations of graphics cards (100 microseconds) could potentially reach three times the continuous (1 second) power level. However, Intel finally decided to require the ATX 3.0 power supply (in the model with a 12VHPWR connector) to provide twice the total rated power. STEPHEN EASTMAN explained that the decision to reduce it to only twice the power was made following extensive discussions with various power supply manufacturers, as twice the power was deemed the most cost-effective solution.

120mm axial fan, ROG heatsink, ATX 3.0 specification.
Power supply product load range information and 80 PLUS Platinum certification.

The ROG Loki SFX-L 1000W Platinum has cleared the 80 PLUS conversion rate test and achieved Platinum certification. The 80 PLUS specification mandates that the power supply must maintain 80% or greater energy efficiency at 20%, 50%, and 100% of the rated load. The efficiency and power factor must also exceed 0.9.

Apart from the familiar 80 PLUS conversion rate certification, the ROG Loki SFX-L series power supplies have also passed the new Cybenetics certification. Cybenetics, like 80 PLUS, is a certification entity. Intel has previously recognized Cybenetics for its meticulous and rigorous approach to power supply certification. The ROG Loki SFX-L 1000W Platinum has achieved the Cybenetics ETA & LAMBDA 115V efficiency test and noise certification, with an overall efficiency ranging between ≥89% and <91%, earning it a Platinum certification. In addition, it received an A-grade evaluation in the Noise Level Certification noise assessment, signifying that the ROG Loki SFX-L 1000W has a double platinum conversion rate and A-level silent certification!

80 PLUS Platinum certified.
Cybenetics ETA & LAMBAD 115V certified for Platinum conversion and Class A noise rating.

The ROG Loki SFX-L 1000W Platinum employs a fully modular cable design, meaning all power supply cables can be installed based on individual needs. If users want more style and personalized cable modules, they can order them through brands like CableMod to create custom-colored cables.

Each slot on the power supply is clearly labeled, making it easier to identify and install. Each power supply cable and slot includes a corresponding fail-safe mechanism to prevent incorrect insertion. If something doesn’t feel right during installation, users should avoid forcing the connection. The 4 Pin 12VHPWR slot is located at the top left corner of the unit and is labeled as PCI-E separately.

List of power supply slots for all modules.
There are cooling holes and a main power switch at the rear.

Even though the fully modular cables allow for customization, the aesthetics of the ROG Loki SFX-L 1000W Platinum as is, are quite appealing. The textured outer layer that wraps the power supply cables enhances the tactile feel and appearance. Additionally, connectors at both ends of the cable are individually labeled to specify whether the end connects to the PSU or the slot, removing any guesswork about which side to plug in.

The power supply comes with a set of ATX 20 / 24-Pin motherboard power supply connectors. The CPU connector features two 4+4 Pins, accommodating high-end motherboards that require dual 8-Pin connectors.

A 20/24-Pin cable for the mainboard, with a total length of 475mm.
The processor has two 4+4 Pin wires, and the dual 8-Pin of the high-end motherboard is also no problem, the total length is 570mm.

The GPU PCIe 8-Pin connector features a straight-out 6+2 Pin configuration, along with a 12VHPWR to Y-shaped double-ended PCIe power supply cable. In total, there are two cables and three PCIe 8-Pin power supply connectors.

A PCIe 8-Pin cable with a single connector, the total length is 485mm.
A 12VHPWR to 2x PCIe-8Pin, the total length is 485mm.
The PSU end of the adapter cable is 16-Pin 12VHPWR.

The exclusive 12VHPWR cable features a 12+4 Pin, or 16-Pin, connector. The 12V and ground wires below adhere to standards with 16AWG wires, while the remaining 4 Pins are 28AWG wires.

The top 4-Pin is the Sideband Signals signal interface. The manufacturer employs the SENSE 0 PIN and SENSE 1 PIN in the Sideband Signals. These two Pins, when grounded and open, form four different arrangements, allowing a single line to provide a maximum power consumption of 600W. This 12VHPWR cable can be switched to four different power consumption upper limits: 150W, 300W, 450W, and 600W.

16-Pin 12VHPWR bus length 470mm, single power supply up to 600W.
12+4 Pin connector.

The axial cooling fan of the ROG Loki SFX-L 1000W Platinum power supply connects to the motherboard’s 5V 3-Pin ARGB slot via a cable. This allows the use of Aura Sync to customize the lighting effect. Included in the cable package is a lighting effect control cable. To illuminate the unit, you need to connect the Addressable Aura RGB slot on the power supply side to the 5V 3-Pin ARGB slot on the motherboard.

ROG Loki SFX-L 1000W Platinum dedicated lighting effect connection cable, the total length is 825mm.
The power terminal needs to be connected to the Addressable Aura RGB socket.
The lighting effect setting is synchronized with the motherboard slot, and the lighting effect is when the fan stops.
The rear pixel ROG pattern will transmit light.
The words “Republic of Gamers” on the side also have a little light transmission effect.

The power supply features four large 4-Pin Peripheral connectors for additional device power supply cables. There are two SATA power supply cables included for use with the hub HUB and 2.5/3.5-inch hard drives. Each individual cable has three SATA connectors. These SATA connectors are designed with a 90-degree orientation for optimal fit and convenience.

A large 4-Pin power supply cable with a length of 300+100+100+100 mm.
Two three-headed SATA power supply cables with a length of 300+200+200mm.

Additional accessories comprise disposable belts, ROG belief devil felt cable ties, CableMod 20% discount coupons, SFX-L to ATX mounting brackets, and AC wires. If users wish to purchase custom modular cables for installation, they can take advantage of the CableMod 20% off coupons to get an even better deal on personalized custom cables!

Straps, ROG Velcro Cable Ties, 20% off CableMod Coupon, ATX Mounting Adapter, AC Cables.

ROG Loki SFX-L 1000W Platinum Power Supply Stress Test

For this test, we’re employing a complete ASUS large platform setup to evaluate the ROG Loki SFX-L 1000W Platinum power supply. The processor we’re using is the 13th generation Intel Core i9 13900K, and we’re pairing it with the ASUS TUF RTX 4070 Ti OC graphics card. The software we’ll use for testing includes OCCT AVX2 and AIDA64 FPU + FurMark, both running stress tests for reference. HWiNFO 64 is employed to check and record the values returned by the motherboard’s environmental control chip. Please note that using software monitoring may result in a 1~3% deviation in data values, so they should be used as a reference only.

Test Platform
Processor: Intel Core i9 13900K
Radiator: ROG RYUO III 360 ARGB
Motherboard: ROG STRIX Z790-E GAMING WIFI (0816)
Memory: T-FORCE DELTA RGB DDR5 6200 MT/s 16GBx2
Graphics Card: ASUS TUF Gaming GeForce RTX 4070 Ti 12GB GDDR6X OC
System Disk: Micron Crucial P3 Plus 1TB PCIe M.2 2280 SSD
Game Disk: AORUS NVMe Gen4 SSD 2TB
Operating System: Windows 11 Professional Edition 21H2
Power Supply: ROG Loki SFX -L 1000W Platinum

First, we use the OCCT AVX2 mode to conduct a simultaneous load stress test on both the processor and the graphics card. After 15 minutes of stress testing, we examine the data returned by the Super I/O environmental control chip on the main board. For the +12V, the maximum value is maintained at 12.192V, with a minimum of 12.096V. As for the +5V, it’s maintained at a maximum of 5.040V and a minimum of 5V.

OCCT AVX2 mode software stress test for 15 minutes.
The maximum power consumption of i9 13900K is 315.09W; the maximum power consumption of TUF RTX 4070 Ti OC is 292.68W.

Next, we utilize AIDA64 FPU + FurMark, a combination often used for testing the stability and temperature of the processor and graphics card. Running these two software simultaneously, we perform a high-load stress test. Here, we use HWiNFO 64 to view the information supplied by the motherboard’s environmental control chip and record the data.

After 15 minutes of testing, the data received show that the +12V is kept at a maximum of 12.192V with a minimum of 12.096V. Similarly, the +5V is maintained at a maximum of 5.040V and a minimum of 5V.

AIDA64 FPU + FurMark software stress test, and the data collected during the test.

NVIDIA PACT allows for direct recording of the actual power consumption of the graphics card, and the voltage record can be accurate to within a milliwatt. During the AIDA64 FPU + FurMark stress test, the system operates in Performance Mode. With GPU Tweak III’s overclocking mode enabled, the TUF RTX 4070 Ti OC reaches a maximum power consumption of 355.276W. The recorded values for 12V1 stand at 12.060V, 23.705A, and 285.882W.

GPU power consumption under AIDA64 FPU + FurMark stress test.

We’ll conduct an additional 15-minute AIDA64 FPU + FurMark stress test, using the FLIR ONE Pro smartphone-specific infrared thermal imaging camera to assess the temperature of the power supply and wires. The graphics card will operate in Performance Mode with the overclocking mode in GPU Tweak III activated for the stress test. Concurrently, the graphics card’s 12VHPWR power supply cable will be directly connected to the graphics card power supply slot.

When the power supply fan is placed upwards, the detection hotspot inside the power supply is 58.7°C and the temperature at the air outlet is 52.5°C.
Processor ATX_12V dual 8-Pin power socket 30°C.
The bare-side platform is placed upright and the graphics card is installed directly. The temperature of 12VHPWR is 44.4°C.
The temperature at the outlet of the power supply is 37°C.



ASUS’s latest ATX 3.0 pioneer, the ROG Loki SFX-L 1000W Platinum, is a small powerhouse that fits snugly into an ITX case, offering a robust and stable power supply for the 13900K and NVIDIA RX 40 series graphics cards.

With the ATX 3.0 specification’s capability to provide twice the overall rated power in just 100 microseconds (μs), concerns over the graphics card’s peak power consumption (Power Excursion) are a thing of the past! The power supply has also earned the 80 Plus Platinum and Cybenetics Platinum certifications, indicating its impressive conversion efficiency. The 0dB intelligent fan stop function ensures silent operation when the power supply load falls below 40%, a feature that has earned it a Cybenetics Noise Level Certification A-grade.

The embossed full-modular power supply cable offers a superior cable experience and exceptional aesthetics. Its native support for 12VHPWR allows it to provide a 600W power supply with a single cable. No longer do you need to use unattractive adapter cables when utilizing the latest NVIDIA RTX 30/40 series graphics cards. For a safer and more attractive cable solution, opt for the ROG Loki SFX-L 1000W Platinum!

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Title: Unboxing review of the ROG Loki SFX-L 1000W Platinum power supply/ dual platinum certification, with a textured fully modular cable