GIGABYTE GAMING 1000GM PG5 Power Supply Unit - PCIe 5.1, 80 PLUS Gold, Fully Modular Design, 135mm Fan, ATX 3.1 compatible, EU Plug

The GIGABYTE GAMING 1000GM PG5 is a 1000 W ATX power supply unit engineered for high-performance desktop systems. It supports PCIe 5.1 devices and is compatible with ATX 3.1 standards, delivering power with 80 PLUS Gold efficiency. The unit features a fully modular cabling system, a 135 mm fluid dynamic bearing cooling fan, universal 100–240 V AC input and a standard 20+4 pin motherboard connector, making it suitable for gaming PCs and professional workstations that require reliable, continuous power delivery.

Advantages

The PSU offers high conversion efficiency with an 80 PLUS Gold rating and includes multiple built-in protections such as over-voltage, over-current and short-circuit safeguards to maintain system stability. Fully modular cabling reduces clutter inside the case and simplifies installation and cable management. The included 135 mm fan with smart control balances cooling performance and acoustic levels, while a robust single +12 V rail design supports modern GPUs and CPUs.

Suitable for

• High-performance gaming PCs with PCIe 5.1 graphics cards
• Workstations used for content creation, rendering, and video editing
• Systems needing a fully modular PSU for clean cable management and upgrades
• Builds that require stable single +12 V rail power delivery

When it may not be suitable

This 1000 W PSU is designed for demanding systems; it may be oversized for small, energy-efficient builds or compact mini-ITX systems where lower wattage units provide better cost and size fit. If your system does not use PCIe 5.1 components or high-power GPUs, a lower-capacity, lower-cost PSU may be more appropriate.

Key specifications

• Output power: 1000 W
• Efficiency certification: 80 PLUS Gold
• PCIe support: PCIe 5.1
• Form factor and standard: ATX 3.1 / ATX
• Modularity: Fully modular cabling
• Cooling: 135 mm fluid dynamic bearing (FDB) fan with smart fan control
• Input voltage: 100–240 V AC, 50/60 Hz
• Main motherboard connector: 20+4 pin ATX
• Capacitors: 100% Japanese capacitors
• Protection features: OVP, OPP, SCP, UVP, OCP, OTP, NLO, SIP

How to use

Install the GIGABYTE GAMING 1000GM PG5 into a compatible ATX case following the case and motherboard manufacturer instructions. Connect the 20+4 pin main connector to the motherboard and attach the necessary modular cables for CPU, GPU and storage devices. Ensure the PSU is switched off during installation and that the AC input matches the local mains supply. After connecting all components, power on the system and verify stable operation and that cooling fan behavior matches expected smart fan control modes.

What to consider before purchase

• Confirm your system’s total power draw and component compatibility with a 1000 W unit
• Check that your case supports ATX 3.1 / ATX PSU dimensions and mounting
• Verify required connector types and quantities for GPU, CPU and storage
• Consider noise and cooling needs in relation to the PSU’s 135 mm fan and smart control

Recommendations

Use the fully modular cabling to connect only the required cables to improve airflow and reduce clutter. Keep ventilation clear around the 135 mm fan and monitor system voltages after build or component upgrades to ensure continued stable power delivery.