Asus ROG Loki SFX-L 850W PSU Review

Transient Response

20% Load – 20ms

Voltage Before After Change Pass/Fail
12V 12.042V 11.859V 1.52% Pass
5V 5.076V 4.975V 1.99% Pass
3.3V 3.336V 3.228V 3.25% Pass
5VSB 5.026V 4.962V 1.27% Pass

50% Load -20ms

Voltage Before After Change Pass/Fail
12V 12.035V 11.874V 1.34% Pass
5V 5.066V 4.965V 1.99% Pass
3.3V 3.327V 3.213V 3.43% Pass
5VSB 4.995V 4.945V 1.00% Pass

The transient response should be better. I expected lower voltage drops, especially at 12V.

Transient Response ATX v3.0 Tests

The PSU successfully passed all ATX v3.0 transient response tests.

With a 200% transient load, the drop at 12V is controlled. Still, the Corsair SFX-L units perform better.

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