The latest CORSAIR RMe Series RM1000e ATX 3.0 power supply has landed, and we’re ready to unbox it. This ATX 3.0 model is equipped with 12VHPWR capabilities

CORSAIR has revamped its renowned RM series power supply to conform with Intel’s ATX 3.0 specification, allowing for twice the overall rated power for brief durations. The original 12VHPWR power supply cable is a feature that makes its return, giving gamers something familiar. This power supply has full-modular cables and boasts 80 Plus Gold and Cybernetics Platinum certifications and smart fan stop technology. It offers a seven-year warranty, ensuring users have reliable power supply capabilities.

Here are the specifics of the CORSAIR RMe Series RM1000e ATX 3.0 Power Supply:
Standard: ATX 3.0
AC Input Voltage: Ranges between 100-240Vac
DC Output Voltage: Includes +3.3V, +5V, +12V, -12V, +5Vsb
Size: Measures 150x 140 x 86 mm
Cooling system: Utilizes a 120mm sleeve fan
Efficiency Certification: Certified 80 Plus Gold, Cybernetics Platinum
Cabling: Comes with full-modular cables
Guarantee: Comes with a seven-year warranty
Protection Measures: Features OPP/OVP/SCP/OCP/OTP systems
Cable Connections: Equipped with 1x 24 Pin motherboard connector, 2x 8 Pin CPU connector, 1x 12+4 Pin 12VHPWR connector, 6x 6+2 Pin PCIe connector, 7x SATA connector, and 4x Peripheral connectors.

CORSAIR RMe Series RM1000e ATX 3.0 power supply unpacking

The “RMe Series RM1000e,” CORSAIR’s latest model conforming to the ATX 3.0 specification, follows the RMx SHIFT as the second-tier ATX 3.0 power supply unit, which features a slide-out module design. The RM1000e offers a fully modular cable configuration and is backed by a seven-year warranty. It also holds dual conversion rate certifications from both 80 Plus and Cybenetics, having achieved 80 Plus Gold and Cybenetics Platinum ratings in two separate efficiency testing procedures.

CORSAIR signature theme yellow RMe Series RM1000e ATX 3.0 outer box.
Basic product features and specification chart.
Image table of wire quantity.

The CORSAIR RMe Series RM1000e ATX 3.0 power supply, which features a fully modular cable design, aligns with the latest Intel ATX12V V3.0 specification. Compact in size, it incorporates a 105°C Japanese capacitor and a 12cm low-noise fan within its 14cm length. The unit also features an in-built Zero RPM smart fan stop mode for a quieter experience, particularly beneficial during low-load usage scenarios such as standby. Additionally, the RM1000e ATX 3.0 has earned the Cybernetics noise rating A-, thanks to its two quiet orientation settings, emphasizing its commitment to a noise-minimized operation.

The volume of RM1000e ATX 3.0 is only 150x 140 x 86 mm, 14cm is much more friendly to the power compartment of the case.

The RM1000e ATX 3.0 boasts a compact size of just 150x 140 x 86 mm. At a length of only 14cm, it’s considerably accommodating to the power compartment within a computer case, enhancing its user-friendliness.

Current and power-related table.
12cm fan air intake surface, a protective grille formed by a number of triangles.

The RM1000e ATX 3.0 has successfully gone through the 80 PLUS efficiency test and has been awarded the gold certification. This certification stipulates that a power supply should maintain 80% or more energy efficiency under 20%, 50%, and 100% rated load, with the power factor required to meet or exceed 0.9.

Besides the commonly seen 80 PLUS efficiency certification, the RM1000e ATX 3.0 series power supply has also achieved the newer Cybernetics test certification. During the Cybernetics ATX V3.0 test, it demonstrated an overall efficiency of ≥89% & <91%, earning it the Platinum (white Gold) certification. Furthermore, as the decibel level stayed between 25 and 30 throughout the test, the unit was granted the A- grade Noise Level Certification, recognizing its quiet operation.

Overall efficiency of Cybenetics Platinum: ≥89% to <91%.

Despite Intel has introduced the new ATX12V V3.0 power supply design guidelines and specifications, there isn’t a certification symbol like the 80 Plus available for ATX 3.0. Power supply brands add this specification to their product boxes themselves. So, how can one be sure if a power supply meets the Intel ATX12V V3.0 specification?

Actually, Intel provides a free ATX 3.0 power supply verification test platform. This platform utilizes testing equipment worth around 6.08 million Taiwan dollars to perform a six-hour, fully automated, rigorous test that includes more than 600 individual test items. Upon completion, a summary of about 90 pages of test reports and design improvement suggestions is generated. If the power supply passes this certification test and the manufacturer chooses to disclose this to Intel, the results will be posted on Intel’s own website for confirmation.

Passed the Intel ATX12V V3.0 test and certification and published it on Intel’s official website.

The fully modular power supply slot configuration offers greater flexibility in deciding which cables to use. It is broadly separated into four sections, each clearly labeled for cable installation, to avoid any confusion. It’s important to handle the cables gently during installation and not force them into the slots. Additionally, the PCIe and CPU share a total of six slots.

The cooling surface features just an AC port and a large switch, with no specific switch provided for the Zero RPM Mode smart fan stop function. This indicates that the smart fan stop function is always operational and cannot be manually switched off.

Full module power supply slot.
List of cables for all modules.
Cooling air outlet surface.

Corsair’s RMe/RMX power supply cables are known for their durability and rigidity, particularly the 24-Pin motherboard power supply cables. This characteristic remains in the RM1000e ATX 3.0, maintaining a certain level of firmness. Consequently, users may need to exercise a bit more patience when installing and routing these cables.

The RM1000e ATX 3.0 includes a set of ATX 20 / 24-Pin motherboard power supply connectors. Additionally, the CPU connector features two 4+4 Pins, which cater to the needs of high-end motherboards requiring dual 8-Pin connectors.

One piece of 24-Pin wire for the main board on the braided outer layer. The length of the wire is 610mm.
Two CPU 8-Pin power supply wires, the length of which is 650mm.

For graphics card power supply, the RM1000e ATX 3.0 provides two types of PCIe 8-Pin cables. Two of these are straight PCIe 6+2 Pin cables, each with a single connector. The other two are PCIe 6+2 Pin cables with a Y-shaped split, effectively doubling the connectors. In total, this configuration gives you four cables and six PCIe 8-Pin connectors.

Two single-ended PCIe 8-Pin black flat cables with a length of 650mm.
Two y-shaped double-ended PCIe 8-Pin black flat cables with a length of 600+100mm.

A key upgrade of the RM1000e ATX 3.0 is its compliance with the Intel ATX 3.0 architecture, reintroducing native support for 12VHPWR cables to power NVIDIA RTX 30/40 series graphics cards. The 12VHPWR power supply cables on the RM1000e ATX 3.0 offer a maximum power supply limit of 450W. These cables have a unique interface design where half of the adapter cable has two PCIe 8-Pin connectors that attach to the power supply side, while a 12+4 Pin 12VHPWR interface connects to the graphics card side.

One might wonder if this semi-transitional configuration differs in any way from a cable with 12VHPWR connectors on both ends. Theoretically, there is no difference in performance or specifications, providing assurance to users that they can use it without any concerns.

One flat cable 2x PCIe 8-Pin to 12VHPWR, cable length 650mm.
Two PCIe 8-Pin are installed on the power module slot, converted into 12+4 Pin 12VHPWR.
Demonstration of an actual installation.

The RM1000e ATX 3.0 comes with four large 4-Pin Peripheral connector cables for supplying power to additional devices. There are also two SATA power supply cables, which can be used for the hub HUB and 2.5/3.5-inch hard drives. Across these two cables, there are a total of seven SATA connectors. These SATA connectors are designed with a 180-degree lay-flat orientation for convenient installation and management.

A large 4-Pin power supply cable with a length of 450+100+100+100mm.
One for 3x SATA and one for 4x SATA, the lengths are 700mm and 800mm respectively.
AC wire, screws, disposable cable ties.

CORSAIR RMe Series RM1000e ATX 3.0 Power

For this power supply test, we’re using a test platform featuring the 13th generation Intel Core i9 13900K processor and the NVIDIA GeForce RTX 4080 Founders Edition graphics card. Stress testing is performed with the OCCT AVX2 software, while HWiNFO 64 is used to check and record values reported by the motherboard’s environmental control chip. Please note that software monitoring may have a deviation of 1~3%. The data provided is only for reference.

Test Platform Specifications:

  • Processor: Intel Core i9 13900K
  • Cooler: LIAN LI Galahad 360
  • Motherboard: BIOSTAR Z790 VALKYRIE
  • Memory: T-FORCE DELTA RGB DDR5 6200 MT/s 16GBx2
  • Graphics Card: NVIDIA GeForce RTX 4080 Founders Edition
  • Operating System: Windows 11 Professional Edition 21H2
  • Power Supply: CORSAIR RMe Series RM1000e ATX 3.0
  • Liquid Cooling Fan: LIAN LI UNI FAN P28

The OCCT AVX2 mode is employed here to perform a load stress test on both the processor and the graphics card concurrently. After a 30-minute stress test, we examine the values returned by the Super I/O environmental control chip on the motherboard. First, the GPU 16-Pin HVPWR voltage stays within a maximum of 12.233V and a minimum of 12.049V. Following this, the +5V maintains a maximum of 5.000V and a minimum of 4.973V.

OCCT AVX2 mode software stress test for 30 minutes.
The maximum power consumption of i9 13900K is 273.37W; the maximum power consumption of RTX 4080 is 322.5W.

During the OCCT AVX2 stress test, the FLIR ONE Pro smartphone-attached infrared thermal imaging camera was utilized to monitor the temperature of the power supply and the cables. The graphics card’s 12VHPWR power cable was directly linked to the power supply slot of the graphics card, bypassing the use of the adapter cable provided with the graphics card.

The cooling air outlet of the power supply is 63.9°C.
The hottest part of the module’s power supply wire is the socket area of ​​the CPU’s power supply end at 40.5°C.
The ATX_12V CPU power supply socket area on the motherboard is 46.2/47.4°C.
RTX 4080 12VHPWR powered 47.2°C.



After keeping its users in anticipation for a while, CORSAIR has finally launched the RMe Series RM1000e ATX 3.0. This model adheres to the Intel ATX 3.0 specification and features a 12VHPWR power supply cable. The external design and cable components have not seen significant changes from the previous RM1000e. The main focus of this update is the transition to the ATX 3.0 specification, the ability to supply double the overall rated power in a brief 100 microseconds (μs) span, and native support for 12VHPWR to power RTX 30/40 series graphics cards directly.

The fully modular RM1000e ATX 3.0 comes with a seven-year warranty and boasts two power conversion rate certifications—80 PLUS Gold and Cybenetics Platinum. It also earns an A- noise level certification rating.

The compact RM1000e ATX 3.0, with its 14cm short body, offers more space for concealing wires in the power supply compartment of the chassis. The 12VHPWR, with a single power supply limit of 450W, requires only one cable to deliver stable power to your NVIDIA graphics card. Say goodbye to unsightly adapter cables—they can go straight back into the box!

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Title: The latest CORSAIR RMe Series RM1000e ATX 3.0 power supply has landed, and we’re ready to unbox it. This ATX 3.0 model is equipped with 12VHPWR capabilities