MSI MAG A1000GL PCIE5 1000W Power Supply — 80 PLUS Gold Certified, Fully Modular ATX 3.1 PSU

General Information

The MSI MAG A1000GL PCIE5 1000W Fully Modular PSU is a high-end, fully modular power supply designed for modern high-performance gaming PCs, content creation workstations, and next-gen builds with NVIDIA GeForce RTX 40/50 Series GPUs. It features PCIe 5.1 16-pin support, 80 PLUS Gold efficiency, and active PFC, making it ideal for systems demanding stable, efficient, and quiet power delivery.

With 135mm FDB fan, full bridge LLC topology, and flat cables, this PSU ensures clean cable management, low noise, and long-term reliability.

Power & Efficiency

• Rated Wattage: 1000W continuous output
• Power Excursion Capability: Up to 2000W (200% rated power) for 100μs bursts – ideal for sudden spikes from high-end GPUs
• Efficiency Rating: 80 PLUS Gold – up to 90% efficiency at typical loads
• Power Design:
  • Full bridge LLC topology
  • DC-to-DC converter
  • Active PFC – improves power factor and reduces waste
• Single +12V Rail: Ensures stable voltage across all components

Connectors & Compatibility

• GPU Connectors:
  • 1 x PCIe 5.1 16-pin (600W) – native support for RTX 40/50 Series GPUs
    • Dual-color yellow cable for secure seating detection
    • Delivers up to 600W per connector
  • 4 x 6+2-pin PCIe connectors – for older or additional GPUs
• CPU Connectors:
  • 2 x EPS (4+4 pin) – dual CPU power for high-end CPUs
• Motherboard Connector:
  • 1 x 24-pin ATX main power
• Storage Connectors:
  • 12 x SATA power connectors – for SSDs, HDDs, optical drives
  • 4 x 4-pin peripheral (Molex) – for case fans, hard drives, and other peripherals
  • 1 x FDD connector – for legacy floppy drives (rarely used today)
• Fully Modular Design:
  • Only connect needed cables
  • Flat, low-profile cables for better airflow and cleaner build

Cooling & Thermal Management

• Fan Size: 135mm Fluid Dynamic Bearing (FDB) fan
• Noise Level:
  • Low noise under light loads
  • Smart fan control adjusts speed based on temperature
• Thermal Protection:
  • Over Temperature Protection (OTP) – shuts down if internal temp exceeds safe limit
  • Thermally optimized design for long-term reliability

Protection Features

This PSU includes comprehensive protection circuits to ensure system safety:

• Over Current Protection (OCP)
• Over Voltage Protection (OVP)
• Over Power Protection (OPP)
• Short Circuit Protection (SCP)
• Under Voltage Protection (UVP)
• Over Temperature Protection (OTP)

These features protect your components from voltage spikes, short circuits, and overheating.

Design & Build Quality

• Form Factor: ATX 3.1 – compatible with modern cases and future PCIe 5.1 standards
• Dimensions: 150 x 150 x 86 mm – fits most standard ATX cases
• Cable Management:
  • Fully modular – only use needed cables
  • Flat, braided cables for neat routing and improved airflow
• Build Material:
  • High-quality steel chassis for durability
  • Reinforced connectors for long-term reliability