Super Flower Leadex Gold 850w Review

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Load Regulation, Hold-Up Time, Inrush & Leakage Current, Efficiency and Noise

To learn more near our PSU tests and methodology, delight cheque outHow We Test Power Supply Units.

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Super Flower Leadex 5 Gold PRO 1000W

Primary Runway And 5VSB Load Regulation

The post-obit charts show the main track' voltage values recorded betwixt a range of 40W up to the PSU's maximum specified load, along with the deviation (in percent). Tight regulation is an important consideration every fourth dimension we review a power supply because it facilitates constant voltage levels despite varying loads. Tight load regulation also, amidst other factors, improves the system'southward stability, especially under overclocked atmospheric condition and, at the aforementioned fourth dimension, it applies less stress to the DC-DC converters that many system components use.

(Image credit: Tom's Hardware )

Load regulation is tight on all rails, especially at 12V where information technology matters the virtually.

Agree-Up Time

Put simply; agree-up time is the amount of time that the system tin can go on to run without shutting downward or rebooting during a power interruption.

(Prototype credit: Tom's Hardware )

The agree-up fourth dimension is long, reaching 22.4ms, and the power ok signal is accurate.

Inrush Electric current

Inrush current, or switch-on surge, refers to the maximum, instantaneous input current drawn by an electrical device when it is first turned on. A large enough inrush current can crusade circuit breakers and fuses to trip. It tin can as well harm switches, relays, and bridge rectifiers. As a result, the lower the inrush current of a PSU right as it is turned on, the meliorate.

(Image credit: Tom's Hardware )

Inrush currents are low.

Leakage Current

In layman's terms, leakage current is the unwanted transfer of free energy from one excursion to some other. In power supplies, it is the current flowing from the main side to the basis or the chassis, which in the majority of cases is connected to the ground. For measuring leakage current, we use a GW Instek GPT-9904 electrical safety tester instrument.

The leakage electric current test is conducted at 110% of the DUT's rated voltage input (so for a 230-240V device, we should conduct the test with 253-264V input). The maximum acceptable limit of a leakage electric current is 3.5 mA and information technology is divers by the IEC-60950-1 regulation, ensuring that the electric current is low and volition non harm any person coming in contact with the power supply's chassis.

(Image credit: Tom'south Hardware)

Leakage current is high, but notwithstanding beneath the limit.

10-110% Load Tests

These tests reveal the PSU's load regulation and efficiency levels under high ambient temperatures. They also bear witness how the fan speed profile behaves nether increased operating temperatures.

Exam	12V	5V	3.3V	5VSB	DC/Air-conditioning (Watts)	Efficiency	Fan Speed (RPM)	PSU Noise (dB[A])	Temps (In/Out)	PF/AC Volts
10%	six.448A	1.985A	1.989A	0.99A	100.014	87.439%	615	12.4	40.3°C	0.969
	12.161V	5.039V	three.318V	5.051V	114.381				44.4°C	115.19V
20%	13.908A	two.978A	2.986A	1.191A	199.971	90.254%	704	eighteen.4	41.23°C	0.978
	12.157V	5.038V	three.316V	v.039V	221.564				45.63°C	115.19V
30%	21.717A	iii.475A	3.485A	i.393A	300.025	91.379%	816	22.4	41.5°C	0.989
	12.155V	5.037V	3.315V	5.027V	328.329				46.25°C	115.19V
40%	29.500A	3.973A	three.984A	1.595A	399.783	91.569%	1002	28.0	41.86°C	0.993
	12.155V	v.035V	three.313V	5.016V	436.591				46.89°C	115.19V
50%	36.936A	iv.967A	iv.984A	1.799A	499.492	91.248%	1214	33.eight	42.96°C	0.994
	12.156V	v.034V	3.311V	five.004V	547.4				48.75°C	115.19V
threescore%	44.437A	five.963A	5.986A	two.001A	600.042	90.75%	1389	37.3	43.21°C	0.996
	12.158V	5.033V	iii.308V	iv.991V	661.203				49.16°C	115.19V
lxx%	51.869A	six.958A	6.989A	2.21A	699.796	90.075%	1569	40.3	43.94°C	0.996
	12.159V	5.032V	iii.306V	four.978V	776.905				l.78°C	115.19V
80%	59.365A	seven.955A	vii.993A	2.316A	799.843	89.454%	1736	42.7	44.22°C	0.997
	12.161V	5.03V	3.303V	4.967V	894.135				51.46°C	115.2V
ninety%	67.194A	8.453A	eight.481A	2.421A	899.638	88.624%	1905	44.4	45.22°C	0.997
	12.161V	5.029V	three.301V	4.957V	1015.124				53.59°C	115.2V
100%	75.123A	8.952A	nine.001A	two.527A	thou.373	87.778%	2073	45.9	46.17°C	0.997
	12.156V	5.027V	three.3V	4.948V	1139.663				56.58°C	115.2V
CL1	0.115A	eleven.955A	12.055A	0A	101.304	83.434%	1205	33.7	41.21°C	0.966
	12.156V	five.036V	3.293V	v.06V	121.418				46.74°C	115.2V
CL2	0.115A	19.885A	0A	0A	101.397	82.801%	1008	28.1	twoscore.five°C	0.965
	12.159V	v.029V	3.321V	5.07V	122.459				48.22°C	115.19V
CL3	0.115A	0A	xx.158A	0A	67.39	77.503%	921	25.8	40.73°C	0.949
	12.157V	5.044V	iii.274V	v.058V	86.952				49.89°C	115.19V
CL4	82.236A	0A	0A	0A	yard.106	88.799%	1896	44.three	46.85°C	0.997
	12.161V	five.031V	3.322V	5.024V	1126.27				57.03°C	115.18V

The PSU doesn't have a problem delivering full power under high operating temperatures, but it couldn't provide 110% of its max-power output, because OPP kicked in. Noise output was increased once nosotros reached the 50% load test.

xx-80W Load Tests

In the post-obit tests, we measure the PSU's efficiency at loads significantly lower than 10% of its maximum chapters (the everyman load the 80 PLUS standard measures). This is of import for representing when a PC is idle with ability-saving features turned on.

Examination	12V	5V	iii.3V	5VSB	DC/Air-conditioning (Watts)	Efficiency	Fan Speed (RPM)	PSU Noise (dB[A])	Temps (In/Out)	PF/Air conditioning Volts
20W	1.221A	0.496A	0.497A	0.197A	20.003	68.352%	482	<half dozen.0	37.37°C	0.757
	12.165V	5.041V	3.322V	5.076V	29.265				40.8°C	115.19V
40W	2.688A	0.694A	0.695A	0.296A	40.001	79.366%	483	<6.0	37.48°C	0.878
	12.164V	5.041V	3.322V	5.072V	50.401				40.96°C	115.19V
60W	4.154A	0.893A	0.894A	0.395A	sixty	83.888%	510	<6.0	38.85°C	0.927
	12.163V	5.04V	3.321V	5.069V	71.523				42.62°C	115.19V
80W	5.618A	1.092A	one.093A	0.494A	79.959	86.006%	541	7.ix	39.26°C	0.956
	12.162V	5.04V	3.32V	v.064V	92.969				43.2°C	115.18V

We would like to run into over 70% efficiency with 20W load and over 80% with 40W load.

ii% or 10W Load Exam

From July 2020, the ATX spec requires 70% and higher efficiency with 115V input. The applied load is simply 10W for PSUs with 500W and lower capacities, while for stronger units, we dial 2% of their max-rated capacity.

12V	5V	3.3V	5VSB	DC/Air conditioning (Watts)	Efficiency	Fan Speed (RPM)	PSU Noise (dB[A])	Temps (In/Out)	PF/Air conditioning Volts
one.496A	0.217A	0.217A	0.045A	20.239	69.448%	0	<6.0	29.21°C	0.756
	12.161V	5.043V	iii.323V	5.079V	29.142			23.33°C	115.17V

The PSU should exceed 70% efficiency in this test, but this was not the example. Super Bloom should increase efficiency at super-low-cal loads in gild to run across Intel'southward specific requirement.

Efficiency & Ability Factor

Next, we plotted a chart showing the PSU's efficiency at depression loads and loads from 10 to 110% of its maximum rated capacity. The higher a PSU's efficiency, the less energy goes wasted, leading to a reduced carbon footprint and lower electricity bills. The same goes for Power Cistron.

(Image credit: Tom's Hardware )

Boilerplate efficiency is at the bottom of the chart with normal loads. The PSU scores style better with lite and super-light loads.

5VSB Efficiency

Examination #	5VSB	DC/AC (Watts)	Efficiency	PF/AC Volts
1	0.1A	0.508W	71.269%	0.059
	5.08V	0.713W		115.18V
2	0.25A	1.27W	75.628%	0.132
	5.077V	1.679W		115.18V
3	0.55A	2.789W	77.55%	0.24
	v.069V	iii.596W		115.18V
4	1A	5.06W	78.608%	0.335
	5.059V	6.437W		115.18V
5	1.5A	seven.571W	78.473%	0.396
	5.046V	9.648W		115.17V
six	2.501A	12.549W	77.992%	0.456
	5.018V	16.09W		115.17V

(Image credit: Tom'due south Hardware )

The 5VSB runway is around the heart of the pack. Nosotros would like to see close to eighty% efficiency on this rail.

Power Consumption In Idle And Standby

Manner	12V	5V	3.3V	5VSB	Watts	PF/Air conditioning Volts
Idle	12.168V	5.044V	3.325V	v.081V	7.517	0.386
						115.18V
Standby					0.065	0.005
						115.18V

(Epitome credit: Tom'south Hardware )

Vampire power is depression with 115V input, but exceeds 0.1W with 230V.

Fan RPM, Delta Temperature, And Output Noise

All results are obtained betwixt an ambient temperature of 37 to 47 degrees Celsius (98.6 to 116.6 degrees Fahrenheit).

(Epitome credit: Tom'due south Hardware)

(Image credit: Tom'due south Hardware)

The fan'southward speed increases linearly but due to the increased speed that the 120mm fan can achieve, noise output is high.

The following results were obtained at 30 to 32 degrees Celsius (86 to 89.6 degrees Fahrenheit) ambient temperature.

(Image credit: Tom's Hardware)

(Image credit: Tom'south Hardware)

The passive operation doesn't last long at normal operating temperatures, close to xxx degrees Celsius, and the fan'due south speed contour remains ambitious. The super-compact dimensions don't aid go along noise output low.

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Aris Mpitziopoulos is a Contributing Editor at Tom's Hardware US, covering PSUs.

Source: https://www.tomshardware.com/reviews/super-flower-leadex-v-platinum-pro-1000w-power-supply-review/2

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