NZXT C1200 Gold 1200 W Review 6

NZXT C1200 Gold 1200 W Review

Efficiency »

Test Setup



Primary Rails Load Regulation

The following charts show the voltage values of the main rails, recorded over a range from 60 W to the maximum specified load, and the deviation (in percent) for the same load range. Tight load regulation is essential for every power supply because it allows for consistent voltage levels, despite changes in load.







5VSB Regulation



I would like to see within 1% load regulation on all significant rails.

Ripple Measurements

Ripple represents the AC fluctuations (periodic) and noise (random) found in the DC rails of PSUs. Ripple significantly decreases the life span of capacitors because it increases their temperature; a 10°C increase can cut into a capacitor's life span by up to 50 percent. Ripple also plays a vital role in overall system stability, especially if the system is overclocked. According to the ATX specification, the ripple limits are 120 mV (+12V) and 50 mV (+5V, +3.3V, and 5VSB).

Ripple Measurements - NZXT C1200 Gold
Test12V5V3.3V5VSBPass/Fail
10% Load5.6 mV4.2 mV5.3 mV4.6 mVPass
20% Load6.8 mV4.9 mV5.6 mV4.6 mVPass
30% Load11.3 mV4.9 mV6.2 mV4.5 mVPass
40% Load9.3 mV5.3 mV7.1 mV5.0 mVPass
50% Load8.6 mV5.6 mV7.3 mV5.1 mVPass
60% Load9.6 mV14.4 mV18.5 mV13.9 mVPass
70% Load11.0 mV9.6 mV15.8 mV8.9 mVPass
80% Load11.6 mV6.7 mV11.1 mV5.6 mVPass
90% Load12.5 mV7.4 mV11.9 mV5.6 mVPass
100% Load17.5 mV7.8 mV12.8 mV6.0 mVPass
110% Load19.3 mV9.0 mV14.4 mV6.7 mVPass
Crossload 17.3 mV6.1 mV11.5 mV5.8 mVPass
Crossload 27.9 mV7.1 mV5.4 mV4.7 mVPass
Crossload 353.6 mV6.8 mV16.5 mV6.5 mVPass
Crossload 418.0 mV7.0 mV9.7 mV5.9 mVPass


Ripple suppression is good overall.

Ripple at Full Load



Ripple at 110% Load



Ripple at Crossload 1



Ripple at Crossload 4

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Jul 19th, 2024 11:38 EDT change timezone

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