MSI MPG A1000G Power Supply Review

Looking at upcoming next gen. Graphics cards and Processors, the power demand of computers will be going up, considering this many PC component manufacturers are rolling new high-power computer power supplies, and we are getting many high-power PSUs for review recently.

So, today we are reviewing a 1000 watts power supply of the MSI’s MPG product line, the new MSI MPG A1000G Power Supply Unit. MSI is a known good brand for producing innovative and quality PCs component products for PC gamers and enthusiast.

The MSI MPG A1000G Power Supply offers 1000 watts of clean, stable power with 80 PLUS Gold certification promises lower energy consumption and higher efficiency.

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


  • Supports the NVIDIA GeForce RTX 30 Series GPUs
  • Full modular cable design
  • Flat cable equipment
  • 80 Plus Gold certified for high efficiency
  • 100% all Japanese 105oCcapacitor
  • Active PFC design
  • Industrial level protection with OVP,OCP,OPP,OTP, SCP,UVP
  • LLC Half Bridge Topology with DC-DC module design

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 fan 0 RPM mode can stop the fan’s operation when TDP is below 40% to let you enjoy gaming in silence.

Aiming for unwavering product quality and performance stability, the MPG A1000G comes with 100% Japanese 105° C capacitors and solid capacitors.

The MPG A1000G'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.

The MPG A1000G's single rail supply of power can properly deliver the power you need. For high-performance graphics cards and CPUs, the MPG A1000G's 5 CPU & PCI-E slots are more than plenty.

Smaller than typical PSUs on the market, the new ATX series PSU’s compact sizing makes it an excellent fit for more PC cases.



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

Beside regular pig-tail type PCIe cables, MSI also included end-to-end 8-pin PCIe modular cables for clean cable looks at GPU end. Very happy to see this type of small attention to detail stuff from MSI


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.


Every time when I open a PSU, I have to void the factory warranty sticker, so this time just for fun I moved the factory sealed aside to access the screw underneath and repasted it back afterwards. Small scratches on the sticker are caused due to improper handling not during removal process. Used hot air and razor blade for removal.

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


Test system configuration -

CPUIntel i9-9900K
RAM2 X 8GB Corsair DDR4 3000Mhz
SSDCorsair Force GT 240GB SSD
GFX ASUS GeForce RTX3080 TUF Gaming OC
Case Corsair iCUE 4000X Case
DisplayASUS PB287Q
OS Windows 10

The MSI MPG A1000G power supply handled above gaming setup very comfortably, with RTX 3080 and i9-9900K maxed stable overclocked.

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 1145W of load, when tried to pull more the PSU turned itself OFF showing the proper working of Overload protection .


  • Compact design
  • 80 Plus Gold certified
  • Fully modular
  • Single 8-pin PCIe cables Included
  • 10 years warranty
  • 0 RPM Fan mode


  • Nil


With the testing of MSI MPG A1000G Power Supply, we found that MPG A1000G power supply offers 1000 watts of power handling capability 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 excellent build quality along with a peace of mind '10 years warranty, makes the MSI MPG A1000G Power Supply great option for your upcoming Gaming build and is worthy of our PC TeK Reviews CHOICE Award.

Manufacturers Info

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