Thermaltake Toughpower GF A3 850W PSU Review

Transient Response

20% Load – 20ms

Voltage Before After Change Pass/Fail
12V 12.145V 12.053V 0.76% Pass
5V 5.050V 4.968V 1.63% Pass
3.3V 3.342V 3.247V 2.83% Pass
5VSB 5.030V 4.984V 0.92% Pass

50% Load -20ms

Voltage Before After Change Pass/Fail
12V 12.120V 11.970V 1.24% Pass
5V 5.023V 4.927V 1.92% Pass
3.3V 3.314V 3.201V 3.40% Pass
5VSB 4.975V 4.920V 1.10% Pass

The transient response is good on all rails.

Transient Response ATX v3.0 Tests

The PSU meets the ATX v3.0 requirements. It would be nice to see above 3.2V at the 3.3V rail, though at the 200% transient load test.

The 12V rail performs well in the ATX v3.0 tests, keeping high voltage levels.

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