Cold Test Results (~25°C Ambient)

For the testing of PSUs, we are using high precision electronic loads with a maximum power draw of 2700 Watts, a Rigol DS5042M 40 MHz oscilloscope, an Extech 380803 power analyzer, two high precision UNI-T UT-325 digital thermometers, an Extech HD600 SPL meter, a self-designed hotbox and various other bits and parts. For a thorough explanation of our testing methodology and more details on our equipment, please refer to our How We Test PSUs - 2014 Pipeline post.

The energy conversion efficiency of the GAMDIAS Kratos M1-750W is right where we expected it to be for an 80Plus Bronze certified unit. It easily meets the certification’s requirements with an input voltage of 115 VAC, which is the input voltage this unit is certified at. Manufacturers commonly target their designs to meet the 80Plus certification requirements with an input voltage of 115 VAC due to the lower certification thresholds. The Kratos M1-750W just barely fails to meet the 80Plus Bronze requirements for an input voltage of 230 VAC, with an efficiency of 84.8% at full load. The average nominal load range (20% to 100% of the unit's capacity) efficiency of the unit is 87.4% with an input voltage of 230 VAC, which drops to 86.2% for an input voltage of 115 VAC.

The default cooling profile of the GAMDIAS Kratos M1-750W is predicably simple, with the thermal control circuit adjusting the speed of the fan primarily depending on the internal temperature of the unit. It is fairly silent when the load is very low but the low energy conversion efficiency translates to high losses, forcing the fan’s speed to quickly increase alongside with the load. The PSU will be noticeably audible at half load and becomes loud when heavily loaded.

Introduction, Examining Inside & Out Hot Test Results (~45°C Ambient)
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  • Techie2 - Thursday, November 16, 2023 - link

    Skip this unit and buy something reliable or you'll likely be buying better PSU soon.
  • ballsystemlord - Thursday, November 16, 2023 - link

    As an owner of an off brand PSU, I can assure you that it's not necessarily the bad experience you make it out to be.
    I owned a Raidmax RX-850AE. It faithfully served my needs for 7 years. I replaced it about 2 years ago. Unlike the unit above, it wasn't ever loud. And I should know what loud is, given that I used the AMD box cooler from my pre-zen CPU.
  • TheinsanegamerN - Friday, November 17, 2023 - link

    As the owner of a brain, I can assure you that it isnt worth wasting money on off brand garbage when one failure can take out your entire system.
  • ballsystemlord - Monday, November 20, 2023 - link

    As the owner of eyes, I can point out the quoted sentence below.

    "This unit is based on a modernization of a platform that has been around for quite some time, which may be very simple by today’s standards but it also is a ****proven design with zero potential for surprises.***"
  • flyingpants265 - Friday, November 17, 2023 - link

    Yeah, nobody said they had a 100% failure rate.
  • ballsystemlord - Monday, November 20, 2023 - link

    Nor did I...
  • flyingpants265 - Wednesday, November 29, 2023 - link

    Yeah, you did. You said it's "not necessarily a negative experience" because yours worked. It's like saying Russian roulette is not necessarily a bad experience because some people survive it... Ok.
  • Flunk - Saturday, November 18, 2023 - link

    $60 is too much to spend on a questionable quality PSU. There are plenty of reasonable quality PSUs available in that price range.
  • flyingpants265 - Sunday, November 19, 2023 - link

    I actually bought my Seasonic 850W for $60 but it was used.. they have a 10 year warranty, not sure if it's transferable but then quality is fairly good. Wish more stuff had 10-year warranties, and I don't care what anyone says about it. I miss EVGA.
  • PeachNCream - Friday, November 17, 2023 - link

    Those first two fluff paragraphs read like a copy-paste out of someone's company brochure that landed there due to an agreement to add meaningless market-speak as a contingency holding Anandtech hostage to receive future products to review. While that many not really be the case, they are off-putting to say the least an add not a lot of value. They also don't really lay much contextual groundwork for the rest of the article.

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