Gigabyte GP-P750GM 750 W Review - With an Explosive Attitude

Name: Gigabyte GP-P750GM 750 W
Brand: GIGABYTE
Price: 120 USD

crmaris

on Dec 3rd, 2020,

in Power Supplies.

Manufacturer: GIGABYTE

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 an important characteristic for every power supply because it allows for constant voltage levels despite changes in load.

5VSB Regulation

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 an important role in overall system stability, especially when it is overclocked. The ripple limits according to the ATX specification are 120 mV (+12V) and 50 mV (+5V, +3.3V, and 5VSB).

Ripple Measurements - Gigabyte P750GM
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
10% Load	36.0 mV	11.6 mV	13.0 mV	21.5 mV	Pass
20% Load	18.9 mV	11.8 mV	14.3 mV	21.3 mV	Pass
30% Load	11.7 mV	13.4 mV	14.0 mV	22.2 mV	Pass
40% Load	12.0 mV	12.6 mV	15.0 mV	22.5 mV	Pass
50% Load	13.5 mV	15.1 mV	16.2 mV	25.9 mV	Pass
60% Load	15.6 mV	18.1 mV	16.6 mV	26.2 mV	Pass
70% Load	17.6 mV	16.4 mV	18.5 mV	32.3 mV	Pass
80% Load	17.4 mV	16.8 mV	19.3 mV	35.0 mV	Pass
90% Load	20.2 mV	17.7 mV	20.7 mV	33.9 mV	Pass
100% Load	26.1 mV	33.2 mV	22.6 mV	30.7 mV	Pass
110% Load	28.2 mV	30.6 mV	23.7 mV	29.5 mV	Pass
Crossload 1	14.7 mV	20.0 mV	24.1 mV	17.8 mV	Pass
Crossload 2	25.3 mV	27.3 mV	16.2 mV	23.1 mV	Pass