Cooler Master GX III 1050W ATX v3.0 PSU Review

Transient Response

20% Load – 20ms

Voltage Before After Change Pass/Fail
12V 12.046V 11.960V 0.71% Pass
5V 5.013V 4.945V 1.36% Pass
3.3V 3.331V 3.215V 3.49% Pass
5VSB 5.012V 4.977V 0.70% Pass

50% Load -20ms

Voltage Before After Change Pass/Fail
12V 12.013V 11.924V 0.74% Pass
5V 4.988V 4.925V 1.27% Pass
3.3V 3.304V 3.181V 3.72% Pass
5VSB 4.966V 4.926V 0.81% Pass

The transient response is good at 12V, 5V and 5VSB. The deviation is low at 3.3V, but the voltage level on this rail still drops below 3.2V.

Transient Response ATX v3.0 Tests

The PSU passes all ATX v3.0 transient response tests.

The 12V rail’s level drops low in the 200% transient load test.

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2 thoughts on “Cooler Master GX III 1050W ATX v3.0 PSU Review

  1. It is Platinum in Cybenetics, while Gold in 80 PLUS. Cybenetics measures efficiency using a different approach than 80 PLUS, taking thousands of measurements instead of only 3-4.

    So the 1050 is Cybenetics Platinum, while the 1250 is Cybenetics Gold.

  2. Hi, confused on the review. In the first page it alludes to the 1250W version and also says it’s Platinum efficiency but specs and picture shows Gold.

    If its 1050W, ATX 3.0 and Platinum, it would be the perfect one for me so unsure on the details provided. Thanks.

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