Today we are reviewing a 1000 watts PCIe 5.0 ready power supply of the MSI's MPG product line, the new MSI MPG A1000G PCIE5 Power Supply Unit. The MPG series brings out fashionable products by showing extremely unique styles and expressing a conceited attitude towards the challenge of the gaming world. With extraordinary performance and style, the MPG series defines the future of gaming fashion.

Intel with its new ATX specification, ATX 3.0 for power supplies introduces a new high-power and compact sized 16-PIN connector to power high-end graphics cards with latest PCI-Express Gen 5.0, specially in multi-GPU AI, Machine learning environment. This new 16-PIN 12VHPWR connector is used by NVIDIA to power it's latest GeForce RTX 40 Series GPUs.

For desktop PC user like us, now a single compact sized 16-PIN PCIE5 connector can deliver 600W of power directly to your GPU, instead of regular 2 to 3 8-PIN PCIe power connectors, reducing cable cluster and improving air flow for your GPU inside a PC case.

The MSI MPG A1000G PCIE5 is a PCIe 5.0 ready Power Supply offering 1000 watts of clean, stable power with ATX 3.0 standards with output port that are compliant with PCIe 5.0 and Intel PSDG (Power Supply Design Guide) ATX 3.0, also the power supply can hold up to 2x total power excursion and 3x GPU power excursion at 80 PLUS Gold certification, promises lower energy consumption and higher efficiency.

Now let's see what this MSI MPG A1000G PCIE5 PSU has for us.


  • Supports NVIDIA GeForce RTX 40 Series GPUs
  • Full modular design
  • Flat cable
  • 80 Plus Gold certified for high efficiency
  • 100% all Japanese 105oC capacitor
  • Active PFC design
  • Industrial level protection with OVP,OCP,OPP,OTP, SCP,UVP
  • LLC Half Bridge Topology with DC-DC module design

It has an output port that is compliant with PCIe 5.0 and Intel PSDG (Power Supply Design Guide) ATX 3.0, also the power supply can hold up to 2x total power excursion and 3x GPU power excursion.

With native 16 PIN PCIe connector the power supply is ready for Nvidia GeForce RTX 40 Series graphics cards. It can freely pipe up to 600W of power to PCIe 5.0 graphics cards.

The efficiency of your power supply directly influences your system's performance and your power consumption. The 80 PLUS Gold certification promises lower energy consumption and higher efficiency.

The single rail supply of power can properly deliver the power you need. For high-performance graphics cards and CPUs, this power supply's 5 CPU & PCI-E slots are more than plenty.

The gaming power supply can support the NVIDIA and AMD graphics cards. Prepared for the highest of requirements, the MPG power supply's IO supports can support different and versatile ways of connection according to the power connector design of different graphics cards.

The fan 0 RPM mode can stop the fan's operation when TDP is below 40% to help with energy saving and providing silence.

Aiming for unwavering product quality and performance stability, this power supply comes with 100% Japanese 105C capacitors and solid capacitors.

The power supply's fully modular design means that only the connectors required by the build need to be used, significantly reducing cable clutter and simplifying the system's overall build.

Smaller than typical PSUs on the market, the power supply's compact sizing makes it an excellent fit for most PC cases.



MSI MPG A1000G PCIE5 PSU comes in a securely packaged box with PSU graphics, Model name and features highlights on front and the back of the box.

Inside the box

Box includes MSI MPG A1000G PCIE5 with modular cables, Power cable, PSU mounting screws and User manual


MSI has done a great effort on aesthetics of the PSU. With a matte black paint and unique fan grill and aluminum product stickers, gives the PSU a premium feel.


MSI MPG A1000G PCIE5 power supply offers very good PCB build quality with all Nippon Chemi-Con capacitors with 105C rating.


Test system configuration -

CPUAMD Ryzen R9 5950x
Board AORUS x370
RAM2 X 16GB Kingston DDR4 3600Mhz
SSDCorsair Force GT 240GB SSD
GFX AMD Radeon R9 295X2
PSU Corsair RM1000x SHIFT
Case Corsair iCUE 5000T RGB Case
DisplayASUS PB287Q
OS Windows 10

Above high-power PC configuration is used to put the PSU in a real-world power handling scenario by running different GPU and CPU benchmarks.
And MSI MPG A1000G PCIE5 power supply easily handled many runs of high power consumption benchmarks.

Custom made DC Active dummy load PSU tester.

Load Test

To test the PSU on my Active load test, I have manually increased the load in Amps on 12v first rail, 12v second rail, 5v and 3.3v rail to simulate 100%, 80% 50% and 20% load. Since this PSU is having only single 12v rail, so divided the load in half on both 12v loads on my tester.

5V stand-by and -12V supply was left at a constant 0.5amp load throughout the test run.

Maximum theoretical load handling capacity of my tester is somewhat around 1500W, but due to MOSFETs safe operating area (SOA) characteristics and thermal load handling capacity of the heatsinks, this tester can handle Max 1300W.. For safety reasons I have also installed a thermal controller which turn OFF the attached PSU if temperature exceeds SOA specifications.

During test the PSU ran smoothly close to 1140W of load, when tried to pull more the PSU turned itself OFF showing the proper working of Overload protection .


  • PCIe 5.0 ready
  • ATX 3.0 Compatible
  • Compact design
  • 80 Plus Gold certified
  • Fully modular
  • 10 years warranty
  • 0 RPM Fan mode


  • Nil


The MSI MPG A1000G PCIE5 Power Supply, comes with a native 16 PIN 12VHPWR PCIe connector and modular cable to power Nvidia GeForce RTX 40 Series graphics cards, offering 600 watts of dedicated power for your GPU. Also MSI MPG A1000G PCIE5 Power Supply comes in a compact size with 100% all Japanese 105C rated capacitor and 80 Plus Gold certified for high efficiency, enough power for high end gaming PC builds.

Finally, with ATX 3.0 Compatible and native 16 PIN 12VHPWR PCIe support out of the box, makes the MSI MPG A1000G PCIE5 Power Supply a great 1000 watts PSU option for your upcoming Gaming build and is worthy of our PC TeK Reviews CHOICE Award.

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