CORSAIR RMe Series RM850e 850W White - CP-9020293-UK

Name: CORSAIR RMe Series RM850e 850W White - CP-9020293-UK
Brand: Corsair
SKU: eelncjlhud
Availability: InStock

Power your high-performance PC with the CORSAIR RM850e 850W power supply. Experience Cybernetics G...

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Product Information

Full details

The CORSAIR RMe Series RM850e 850W White power supply is designed for PC builders seeking reliable, efficient, and quiet power delivery for high-performance systems, particularly those with modern graphics cards. Its fully modular design simplifies cable management and supports cutting-edge standards like ATX 3.1 and PCIe 5.1, though its distinctive white finish may require aesthetic consideration for some builds.

All features

Model Part Number	RM850e
Brand	Corsair

Extended Product Information

FAQs

What does 'fully modular' mean for this power supply?

Fully modular means that all power cables detach from the power supply unit. This allows you to connect only the cables your specific components need, reducing cable clutter, improving airflow inside your PC case, and making installation and upgrades much easier.

What is Cybenetics Gold efficiency, and why is it important?

Cybenetics Gold efficiency signifies that the power supply operates with very high energy efficiency, achieving up to 90% efficiency at typical load conditions. This means less electrical energy is wasted as heat, leading to lower operating temperatures, reduced electricity bills, and a quieter system.

Is this PSU compatible with the latest NVIDIA 40 Series graphics cards?

Yes, the CORSAIR RM850e is ATX 3.1 and PCIe 5.1 compliant and includes a native 12V-2x6 GPU power connector. This ensures direct compatibility with the latest NVIDIA 40 Series graphics cards without the need for bulky adapters.

How quiet is this power supply?

The RM850e is designed for low-noise operation. It features a 120mm rifle bearing fan with a specially calculated fan curve and a Zero RPM fan mode, which means the fan won't spin at all under low to moderate loads, providing near-silent performance. The fan only activates when needed to cool the unit.

What is the warranty period for the CORSAIR RMe Series RM850e?

The CORSAIR RMe Series RM850e 850W White power supply comes with a seven-year warranty, guaranteeing reliable operation and providing peace of mind for multiple PC builds.

Will this power supply fit in my PC case?

With its compact 140mm length, the CORSAIR RM850e is designed to fit easily into nearly any modern enthusiast PC case. Always check your case's specifications for PSU clearance if you have a particularly small or unique chassis.

What does 'Modern Standby Compatible' mean?

Modern Standby compatibility allows for faster wake-from-sleep times for your PC and improves power efficiency during low-load states. This contributes to a more responsive and energy-efficient system when not actively in use.

Troubleshooting

PC will not power on after PSU installation.

Verify all power connections are securely seated. Ensure the 24-pin ATX motherboard cable, 8-pin CPU power cable, and GPU power cables are firmly plugged into both the PSU and the respective components. Check the power switch on the back of the PSU is in the 'On' position and the wall outlet is functional.

The PSU fan seems louder than expected, or is always running.

The RM850e features a Zero RPM fan mode, meaning the fan should not spin at low loads. If it's always running, check your system's power consumption; it might be under higher load than anticipated. Ensure your case has good airflow and that the PSU's vents are not blocked. Excessive dust buildup can also cause the fan to work harder.

System experiences random crashes or instability.

While potentially a complex issue, verify all power cables are correctly and fully plugged into your components and the PSU. Ensure you are not overloading the PSU beyond its 850W capacity. If possible, test with a different wall outlet or power strip to rule out external electrical issues. Contact CORSAIR support if the issue persists after these checks.

Pros and Cons

Pros

Excellent power efficiency with Cybenetics Gold certification for lower energy consumption and heat.
Fully modular cables simplify installation, improve airflow, and contribute to a cleaner build.
Supports the latest ATX 3.1 and PCIe 5.1 standards with a native 12V-2x6 connector, ready for modern GPUs.
Quiet operation thanks to an optimized 120mm rifle bearing fan and Zero RPM fan mode at low loads.
High-quality, 105°C-rated capacitors ensure long-term reliability and stable power delivery.
Compact 140mm length offers broad compatibility with various PC cases.
Backed by a generous seven-year warranty for peace of mind.

Cons

The white color scheme may not align with all PC build aesthetics or component color choices.
While quiet, the 120mm fan may become audibly noticeable under sustained full load compared to PSUs with larger fans.
850W might be more power than needed for very basic systems, or potentially insufficient for extreme multi-GPU setups.

Setup, Compatibility & Care

Setup Instructions

Mounting the PSU: Secure the RM850e into your PC case's PSU bay using the provided screws. Ensure the fan faces the correct direction for optimal airflow (usually facing down if your case has a bottom vent).
Connect Motherboard Power: Connect the 24-pin ATX cable to your motherboard. Then, connect the 8-pin (4+4-pin) EPS/CPU power cable to the CPU power socket on your motherboard.
Connect GPU Power: For modern GPUs (like NVIDIA 40 Series), use the native 12V-2x6 cable. For other GPUs, connect the appropriate 6+2-pin PCIe cables. Ensure all pins are fully seated.
Connect Peripherals: Use SATA power cables for SSDs/HDDs and Molex cables for any other peripherals, connecting only what is necessary.
Cable Management: Utilize the fully modular design to route cables efficiently, tying them down to improve aesthetics and airflow.
Power On: Once all connections are secure, connect the AC power cord to the PSU and a wall outlet, then flip the main power switch on the PSU.

Compatibility

PC Cases: Its compact 140mm length ensures compatibility with most ATX-compatible PC cases, including many smaller form factor cases.
Motherboards: Fully compatible with ATX motherboards requiring 24-pin and 8-pin (or 4+4-pin) CPU power connections.
Graphics Cards: Designed to support the latest high-power graphics cards with ATX 3.1 and PCIe 5.1 compliance, including a dedicated 12V-2x6 connector.
Operating Systems: Modern Standby compatibility works with operating systems that support this feature (e.g., Windows 10/11).

Care & Maintenance

Keep Vents Clear: Ensure the PSU's intake and exhaust vents are not obstructed to allow for proper airflow and cooling. Regularly check for dust buildup.
Dust Cleaning: Periodically clean the exterior of the PSU and its fan grille using a can of compressed air or a soft brush. Never open the PSU casing.
Environmental Factors: Operate the PSU in a well-ventilated environment within typical room temperatures. Avoid extreme heat or humidity.