MSI MPG A1000G Power Supply Review

Performance and Testing

Test setup and Testing Methodology

I do not have the specialized equipment for PSU testing (which costs thousands of dollars). So, the best way I could do test the PSU is by using what we’ve got. My testing method involves comparing the voltage and power consumption reading during idle and at full load. I know it’s not the most accurate method technically, but I think this simple method should provide some ideas of the performance of the power supply in terms of stability and power consumption.


CPU Intel Core i5-10600K
Cooling Cooler Master Hyper 212 EVO V2
Motherboard Gigabyte z490 AORUS Master
Ram Lexar DDR4-3200 UDIMM 32GB CL22
HDD Lexar NQ100 480GB – 2.5″ SATA III SSD
VGA card EVGA GeForce RTX 3060 Ti FTW3 Ultra Gaming

ZOTAC Gaming GeForce RTX 3070 Twin Edge

OS Windows 10

The main thing to watch out for, is the fluctuation on the +12V line. If the +12V line drops too far below 12V during full load or large fluctuations in the
V readings … then you’ve got trouble. The system may unstable, and you might also get random reboots.

We used AIDA64 and simultaneously ran both CPU and GPU stress test which produces 100% load. We then checked the voltage readings on AIDA64.



Voltage readings taken from ADIA64 at idle

  • +12V : 12.096V
  • +5V : 5.070V 
  • +3V : 3.305V



Voltage readings taken from ADIA64 under load

  • +12V : 11.952 (-0.144V)
  • +5V : 5.070V (-0.000V)
  • +3V : 3.285V (-0.020V)



At full load for both CPU and GPU, the system is drawing a decent amount of power, and you can see that the voltages have dropped slightly. This is expected. What you’re looking for is to make sure that the +12V reading don’t drop too far below 12V. If it does, then the system may become unstable.


In this case, the MSI MPG A1000G Supply is holding up well at 11.952V


Now let’s move on to the Conclusion and Verdict!


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Chris has been a long time enthusiasts of anything computer related. He is a 2010 Graduate with a Bachelor's degree in Computer Science. His expertise ranges from simple coding to systems analysis. He has always enjoyed exploring the vast world of computer hardware and now gets to share that passion with all funky followers!