TUFGaming550B - Power supply ASUS - Free user manual and instructions

Product Type	Desktop Power Supply
Brand	Asus
Model	TUF Gaming 550B
Rated Power	550 W
Form Factor	ATX
Efficiency Certification	80+ Bronze (estimated)
Dimensions (L x W x H)	150 x 140 x 86 mm
Weight	Approximately 1.5 kg
Main Connector	1 x ATX 24-pin (20-pin compatible)
CPU Connector	1 x 4+4 pin
PCIe Connector	1 x 6+2 pin
SATA Connector	1 x SATA
Peripheral Connector	1 x 4-pin
Fan	120 mm
Operating Temperature	0°C to 50°C
Relative Humidity	20% to 80%
Safety	Never open the unit, internal high voltage. Use only supplied cables. Avoid water and extreme temperatures.
Maintenance and Cleaning	Disconnect the device before cleaning. Use a dry cloth for the exterior. Do not insert objects into openings.
Spare Parts and Repairability	Not applicable: the power supply contains no user-serviceable parts. Opening voids warranty.

Frequently Asked Questions - TUFGaming550B ASUS

How to install the TUF Gaming 550B power supply?

Before installation, ensure the computer is off and unplugged. Secure the unit in the case using the provided screws. Connect the modular cables, then connect the motherboard (ATX 24-pin and CPU 4+4-pin), graphics card (PCIe 6+2-pin), and peripherals (SATA or Molex). Finally, plug in the AC power cord and switch the power switch to I.

What connectors are included with this unit?

The TUF Gaming 550B comes with a main ATX 24-pin power cable, a CPU 4+4-pin cable, a PCIe 6+2-pin cable for graphics card, a SATA cable, and a 4-pin peripheral cable (Molex). Cables are modular; use only those provided.

Can I use this unit for a powerful graphics card?

Yes, the unit has a PCIe 6+2-pin connector that can power most mid-range graphics cards. For high-end models requiring more connectors, check your card's requirements. The 550 W power is suitable for a standard gaming PC.

What to do if the fan is noisy?

A slight fan noise is normal. If the noise becomes loud or irregular, check that nothing is blocking ventilation. Do not attempt to open the unit. If the problem persists, contact ASUS support.

How to clean the power supply?

Unplug the computer and the power cord. Use a soft, dry cloth to wipe the exterior case. Do not use liquid products. For ventilation grilles, a low-power vacuum cleaner can be used, but without touching internal components.

Is it safe to open the power supply?

No! The power supply contains high-voltage capacitors that can remain charged and cause fatal electric shock. Never open the case. Any opening voids warranty and poses a serious danger.

What is the maximum operating temperature?

The power supply operates correctly between 0°C and 50°C. Above that, there are risks of overheating or failure. Ensure your case is well ventilated.

Can I use this unit in a mini-ITX case?

The standard ATX form factor (150 x 140 x 86 mm) requires an ATX-compatible case. Mini-ITX cases typically accept SFX power supplies. Check your case dimensions before purchase.

What to do if the computer does not start after installation?

Check that the unit's switch is on I, all cables are firmly inserted (especially ATX and CPU). Ensure the power outlet works. If the problem persists, test with another power supply or consult a professional.

How to get a complete manual in French?

The user manual in French is available for free on notice-facile.com. You can download it in PDF format or request a translation into another language via the form on the page.

USER MANUAL TUFGaming550B ASUS

TUF GAMING POWER SUPPLY UNIT

Quick Start Guide

Quick Start Guide (Traditional Chinese)

Quick Start Guide (Simplified Chinese)

Quick Start Guide (Japanese)

Quick Start Guide (Russian)

Quick Start Guide (Arabic)

Conventions used in this guide

To ensure that you perform certain tasks properly, take note of the following symbols used throughout this manual.

DANGER/WARNING: Information to prevent injury to yourself when trying to complete a task.

NOTE: Tips and additional information to help you complete a task.

Product overview

The device illustration is for reference only. Actual product specifications may vary with models.

Power connector Power switch

Installing your TUF GAMING Power Supply Unit

Before installing or removing cables, ensure that the system is turned off, and all power cables for the system and all attached devices are unplugged.

1. Follow the directions of your chassis manual and secure your TUF GAMING power supply unit into your chassis using the mounting screws.
2. Connect the bundled cables to your TUF GAMING power supply unit.
3. Connect the power connectors to your motherboard and peripheral devices according to your preference. You may refer to the list below to check which devices each power connector can be connected to.

• The power connectors may vary between different models of TUF GAMING power supply units.
• Refer to your motherboard's user manual for more information on the location and connecting the power connectors mentioned below.
• Connect the 24-pin or 20-pin Main Power Connector to the motherboard's 24-pin or 20-pin power connector.
• Connect the 4+4 pin CPU +12V Power Connector to the CPU power socket on the motherboard.
• Connect the 4-pin Peripheral Power Connector to peripheral devices if needed. Connect the 6+2 pin PCI-E +12V Power Connector to the PCI-E graphics card.
• Connect the SATA Power Connector to devices with a Serial ATA interface.
• Connect your TUF GAMING power supply unit to a power source using the bundled power cord.
• Flip the Power Switch to the "I" position to turn on your power supply unit.

Safety information

• High voltages are present in the power supply unit, it is extremely dangerous to open the power supply case or attempt to repair/clean the power supply unit. You should NEVER, under any circumstances, open the power supply unit.
• The Warranty will become void if the cover of the power supply unit is opened; there are no serviceable components inside the power supply unit. DO NOT insert any objects into the power supply unit.
• DO NOT place any objects in front of the fan or the ventilation area of the power supply unit that may obstruct or restrict the airflow.
• USE ONLY the modular cables bundled with the power supply unit.
• DO NOT use the power supply unit near water, or in high temperature or high humidity environments.
• The power supply unit should be operated in suitable environment. (Operating temperature: 0° to 50°C , Relative Humidity: 20% to 80% )
• The power supply unit is for integration into a computer, and not intended for external or outdoor usage.
• Failure to comply with any manufacturer instructions and any of the safety instructions will immediately void all warranties and guarantees.

Notice labels

Warning symbols

Installing the TUF GAMING Power Supply Unit

Installing the TUF GAMING Power Supply Unit

Installing the TUF GAMING Power Supply Unit

Before installing or removing cables, make sure the system is turned off and all power cables and connected devices are disconnected from the power source.

1. Follow the instructions in the chassis manual and secure the TUF GAMING power supply unit in the chassis with mounting screws.
2. Connect the cables from the power supply unit's accessory kit to the TUF GAMING power supply unit. 3. Connect the power connectors to the motherboard and peripheral devices according to your needs. The table below provides information on which devices can be connected to each power connector.

• The power connectors may vary depending on the model of the TUF GAMING power supply unit.
• The motherboard manual provides more information on the location and connection of the power connectors.

- Connect the 24-pin or 20-pin main power connector to the 24-pin or 20-pin power connector on the motherboard. - Connect the 4+4 pin CPU +12V power connector to the 4+4 pin CPU +12V power connector on the motherboard. - If necessary, connect the 4-pin peripheral power connector to the peripheral devices. - Connect the 6+2 pin PCI-E +12V power connector to the graphics card PCI-E.

• Connect the SATA power connector to devices with a Serial ATA interface.

4. Connect the TUF GAMING power supply unit to the power outlet using the power cord from the accessory kit. 5. Set the power switch to the "I" position to turn on the power supply unit.