600W Atx Power Supply Active PFC PC 120mm Silent Fan 80Plus Gold For Mini Chassis Small Computer Case Desktop Power Supply

ATX Power Supply Rear Switch: What It Actually Does

Why can’t my ATX power supply start when I toggle the rear switch?

Many users mistakenly regard the rear switch of the ATX power supply as the power-on button. In fact, its function and the correct startup method are as follows:
Rear Switch Function: It only controls the connection/disconnection of AC mains power.
When set to ON: The power supply is connected to the mains and enters a low-power standby state, waiting for the startup signal from the motherboard.
When set to OFF: The power supply is completely disconnected from the mains, and no power is supplied to any component.
Correct Startup Steps:
Step 1: Flip the rear switch to ON and plug in the power cord.
Step 2: Press the power button on the computer case.
Step 3: The motherboard sends a startup signal to the power supply, which then starts to output power to all hardware (motherboard, CPU, etc.).
Warning: Frequent toggling of the rear switch may cause power surges and damage the power supply or motherboard.

ATX Power Supply DOA (Dead on Arrival) Troubleshooting Guide

What should I do if my ATX power supply is dead on arrival and not working at all?

If your ATX power supply is non-functional upon receipt, please follow these troubleshooting steps before contacting customer service:
Check the Rear Switch First
Confirm the rear AC switch is set to the ON position. The power supply cannot enter standby mode if the switch is OFF.
Verify Power Connection
Plug the power cord into a different wall outlet (avoid power strips with overload protection to rule out socket issues).
Ensure the 24-pin motherboard power connector and 4/8-pin CPU power connector are fully inserted and locked.
Check for Short Circuits
Make sure there are no loose screws or metal debris inside the case that could cause a short circuit (a short circuit may trigger the power supply’s protection mechanism and prevent it from starting).
Provide Detailed Fault Information
If the power supply still does not work, please record:
A video showing the rear switch position, power cord connection, and the result of pressing the case power button.
Photos of the power supply’s appearance and connector pins (to check for shipping damage).

600w power supply

1. Core Basic Specifications:
Power Supply Standard: Standard ATX Form Factor (non-modular fixed-cable design)
Rated Power:600W (meets entry-level PC build power requirements)
Voltage Compatibility: Full voltage design (90-265v), compatible with diverse power environments and resistant to voltage fluctuations.
ON/OFF switch power supply:it is easier to control it for you.(After turning on the "ON” switch, the power supply will follow your system every time it is turned on and off, without to manually turn it off each time.)

2. Core Product Highlights:
a. High Efficiency & Energy Saving with Certification 80 Plus Gold efficiency, excellent energy efficiency performance:
≥87% efficiency at 20% light load;
≥90% efficiency at 50% typical load;
≥87% efficiency at 100% full load.
More energy-efficient during daily use, reduces electricity costs for long-term operation, while minimizing heat generation to enhance power supply stability.

b. Ultra-Quiet Cooling Fan
Build-in a 120mm FDB (Fluid Dynamic Bearing) fan for longer service life.
Optimized 9-blade design: Delivers gentler and more uniform airflow, improving heat dissipation efficiency while reducing operating noise.
Low-noise operation creates a quiet and comfortable environment for office and entertainment scenarios.

c. Fixed-Cable Design for Stability & Reliability
Non-modular fixed cables: Provide more secure connections, reduce power loss caused by cable adapters, and ensure higher power supply efficiency.
Wide compatibility: Standard ATX form factor fits all mid-tower cases and is also compatible with some mini PCs (Mini-ITX/Micro-ATX motherboards; please confirm chassis power supply bay size beforehand).

d. Multiple Protections for Safe Operation
Active PFC (Power Factor Correction) design: Offers better power factor correction, improves power supply stability, and reduces interference with the power grid.
Heavy duty protections include (CVP/Over Voltage Protection, UVP/Under Voltage Protection, OCP/Over Current Protection, OPP/Over Power Protection, SCP/Short Circuit Protection, OTP/Over Temperature Protection), fully safeguarding the safety of core hardware such as motherboards, CPUs, and graphics cards.

e. High Quality Cables Parameters:
1x 20+4pin Main Power Cable (450mm): Compatible with ATX/ATX12V motherboard power connectors;
1x 6+2pin PCIe Power Cable (480+150mm): Supports single graphics card power supply, suitable for entry-level discrete graphics cards;
1x 4+4pin CPU Power Cable (600mm): Compatible with mainstream CPU sockets like LGA/AM4, ensuring stable power delivery;
2x SATA + IDE Power Cables (450+140+140mm): Meets the power supply needs of devices such as hard disks, optical drives, and case fans, with sufficient expansion capability.

3. Application Scenarios & Hardware Compatibility
Processor Compatibility: i3/i5 series CPUs, AMD equivalent mid-range processors.
Graphics Card Compatibility: Entry-level discrete graphics cards with rated power ≤200W (e.g., RTX 1650/3060/GTX1060/RX580/GTX970/R9 270/R9 270X/R9 280/R9 280X), also compatible with APUs (integrated graphics CPUs) and motherboards with integrated graphics.
Build Scenarios: Daily office PCs, light entertainment PCs, entry-level gaming PCs, study-purpose PCs.
Chassis Compatibility: All standard mid-tower cases, some mini PCs that support standard ATX power supplies (please confirm chassis power supply bay restrictions in advance)

4. Core Value Summary
PSU 500W non-modular ATX power supply takes “high efficiency, quiet operation, stability, and compatibility” as its core main points. The 80 Plus Gold efficiency, the FDB fan addresses noise concerns, active PFC + multiple protections guarantee hardware safety, and the rich cable configuration perfectly fits entry-level builds with i3/i5 CPUs and entry-level discrete graphics cards. It is a cost-effective power supply choice for daily office work and light entertainment.