Corsair RM750x

Serial Number20277131000038970172

Lab IDCR75001801

Certification ID251801

Test Result Report ID: 21PS1801A
Certificate Issue Date: Mar 30, 2021

	115V	230V
Scheme: ETA-EMI PSU

115V	230V
		Scheme: LAMBDA PSU

Aristeidis Bitziopoulos, Certification Body General Manager

General Information

Test Equipment

Electronic Loads	Chroma 63601-5 x2 Chroma 63600-2 Chroma 63640-80-80 x10 Chroma 63610-80-20
AC Sources	Chroma 6530, APM SP300VAC4000W-P, GW Instek ASR-3500
Power Analyzers	Rohde & Schwarz HMC8015 & NPA701
Oscilloscopes	Picoscope 4444, Siglent SDS2104X PLUS
Sound Analyzer	Bruel & Kjaer 2270 G4
Microphone	Bruel & Kjaer Type 4955-A
Temperature Logger	Picoscope TC-08
Tachometer	UNI-T UT372
Multimeters	Keysight 34465A
EMI Analyzer	TekBox TBMR-110M-EU
Isolation Transformer	4kVA
UPS	FSP Champ Tower 3kVA, CyberPower OLS3000E 3kVA
Testing Methodology	Cybenetics PSU Test Protocol

DUT Information(Non-accredited measurements)

Product Identification Details
Brand	Corsair
Model	RM750x
OEM/ODM	Channel Well Technology
Serial Number	20277131000038970172
Product Specifications
Manufacturer-Provided Information
Rated Voltage (Vrms)	100-240
Rated Current (Arms)	10-5
Rated Frequency (Hz)	47-63
Rated Power (W)	750
Operating Temperature (Continuous Full Load) (°C)
Type	ATX12V
Cable Design	Fully Modular
Warranty	-
Cybenetics Measurements
Dimensions (W x H x D)
Weight
Cooling	140mm Magnetic Levitation Fan (NR140ML)
Semi-Passive Operation	✓
Cybenetics Testing Information
Lab ID	CR75001801
Date of receipt	Feb 10, 2021
Testing Date	Mar 2, 2021
Report Issued Date	Mar 30, 2021
Engineer Name	-
Authorized By the Laboratory Technical Manager	Aristeidis Bitziopoulos
Signature

Cables and Connectors(Non-accredited measurements)

Modular Cables
Description	Cable Count	Connector Count (Total)	Gauge	In Cable Capacitors
ATX connector 20+4 pin (610mm)	1	1	16-20AWG	Yes
4+4 pin EPS12V (650mm)	2	2	18AWG	Yes
6+2 pin PCIe (600mm+150mm)	2	4	16-18AWG	Yes
SATA (500mm+110mm+110mm+110mm)	1	4	18AWG	No
SATA (520mm+110mm+110mm)	2	6	18AWG	No
4-pin Molex (450mm+100mm+100mm+100mm)	1	4	18AWG	No
AC Power Cord (1400mm) - C13 coupler	1	1	18AWG	-

Power Specifications

Rail		3.3V	5V	12V	5VSB	-12V
Max. Power	Amps	20	20	62.5	3	0.3
Max. Power	Watts	150		750	15	3.6
Total Max. Power (W)		750

Test Results

Temperature & Compliance Info

Temperature Range (°C /°F)	28-32 / 82.4-89.6
ErP Lot 3/6 Ready	✓
(EU) No 617/2013 Compliance	✓
ALPM (Alternative Low Power Mode) compatible	✓

Performance Summary

Accredited
Average Efficiency (>1450 load combinations)	87.980%
Average Noise Output (>1450 Load Combinations)	27.98dBA
Average PF (>1450 Load Combinations)	0.992
Efficiency With 10W (≤500W) or 2% (>500W) Load	77.021%
Standby Power Consumption	0.0354W
Non-Accredited
12V Ripple (Full Load)	8.89mV
5V Ripple (Full Load)	4.98mV
3.3V Ripple (Full Load)	6.80mV
5VSB Ripple (Full Load)	7.33mV
12V Load Regulation	0.99%
5V Load Regulation	0.57%
3.3V Load Regulation	0.52%
5VSB Load Regulation	1.66%
Inrush Current	24.930A

Accredited
Average Efficiency (>1450 load combinations)	90.238%
Average Noise Output (>1450 Load Combinations)	28.00dBA
Average PF (>1450 Load Combinations)	0.967
Efficiency With 10W (≤500W) or 2% (>500W) Load	-
Standby Power Consumption	0.0553W
Non-Accredited
12V Ripple (Full Load)	8.92mV
5V Ripple (Full Load)	5.06mV
3.3V Ripple (Full Load)	7.08mV
5VSB Ripple (Full Load)	6.64mV
12V Load Regulation	0.99%
5V Load Regulation	0.57%
3.3V Load Regulation	0.48%
5VSB Load Regulation	1.70%
Inrush Current	51.640A
Hold-Up Time & PWR_OK Signal	26.60ms
AC Loss to PWR_OK Hold Up Time	23.90ms
PWR_OK Inactive to DC Loss Delay	2.70ms
PSU Timings: T1 (20% / 100%)	51.0ms	49.0ms
PSU Timings: T3 (20% / 100%)	135.0ms	137.0ms
OPP (26.30°C / 42.18°C)	127.23%	127.23%

Hold-Up Time & PWR_OK Signal

Hold-Up Time (ms)	26.6
AC Loss to PWR_OK Hold Up Time (ms)	23.9
PWR_OK Inactive to DC Loss Delay (ms)	2.7

Vampire Power

Tables

Graphs

Efficiency Graph

INFO

This graph depicts the PSU`s efficiency throughout its entire operational range. For the generation of the efficiency and noise graphs we set our loaders to auto mode through our custom-made software before trying thousands of possible load combinations

INFO

This graph depicts the PSU`s efficiency throughout its entire operational range. For the generation of the efficiency and noise graphs we set our loaders to auto mode through our custom-made software before trying thousands of possible load combinations

Noise Graph

INFO

The PSU`s noise in its entire operational range and under 30-32 °C ambient is depicted in this graph. The X axis represents the load on the +12V rail(s) while the Y axis is the load on the minor rails

INFO

The PSU`s noise in its entire operational range and under 30-32 °C ambient is depicted in this graph. The X axis represents the load on the +12V rail(s) while the Y axis is the load on the minor rails

Noise under high ambient temperature (indicative)

115V

Load	Normal ambient fan · noise · intake	High ambient fan · noise · intake	Noise change
10%	0 RPM · <6.0 dB(A) · 45.7 °C	0 RPM · <6.0 dB(A) · 45.7 °C	fan off in both
20%	0 RPM · <6.0 dB(A) · 46.6 °C	0 RPM · <6.0 dB(A) · 46.6 °C	fan off in both
50%	361 RPM · 7.2 dB(A) · 42.6 °C	361 RPM · 7.2 dB(A) · 42.6 °C	+0.0 dB(A)
100%	1512 RPM · 42.5 dB(A) · 45.2 °C	1512 RPM · 42.5 dB(A) · 45.2 °C	+0.0 dB(A)

230V

Load	Normal ambient fan · noise · intake	High ambient fan · noise · intake	Noise change
10%	0 RPM · <6.0 dB(A) · 45.2 °C	0 RPM · <6.0 dB(A) · 45.2 °C	fan off in both
20%	0 RPM · <6.0 dB(A) · 46.4 °C	0 RPM · <6.0 dB(A) · 46.4 °C	fan off in both
50%	362 RPM · 7.3 dB(A) · 42.2 °C	362 RPM · 7.3 dB(A) · 42.2 °C	+0.0 dB(A)
100%	1515 RPM · 42.6 dB(A) · 45.9 °C	1515 RPM · 42.6 dB(A) · 45.9 °C	+0.0 dB(A)

INFO

Fan speed, noise and the measured intake temperature at 10, 20, 50 and 100 % load, from the two load regulation tests: at normal ambient (about 30-32 °C) and at high ambient (about 40-47 °C). These are stabilized readings at fixed loads, not averages over the certification sweep, so they are indicative of how the fan behaves when it is hot. "<6.0" is the floor of our sound meter: the fan is stopped or too quiet to measure (the fan speed column says which); with the fan stopped, the intake sensor can read higher than the chamber air.

Informational. Not part of the ETA or LAMBDA rating.

Conducted Emissions EN 55032 & CISPR 32

Indicative Performance

Efficiency under high ambient temperature

INFO

The PSU`s efficiency under high ambient temperatures with 115V and 230V input. For this graph the results of the 10-110% load regulation table are used

5VSB Efficiency

INFO

This graph depicts the efficiency levels of the 5VSB rail with 115V and 230V input

5VSB Efficiency (ERP LOT 3/6 & CEC)

Test #	5VSB	DC/AC (Watts)	Efficiency	PF/AC Volts
1	0.045A	0.227	71.160%	0.033
1	5.045V	0.319	71.160%	115.15V
2	0.090A	0.454	75.415%	0.061
2	5.043V	0.602	75.415%	115.15V
3	0.550A	2.769	78.979%	0.262
3	5.034V	3.506	78.979%	115.17V
4	1.000A	5.026	78.482%	0.350
4	5.025V	6.404	78.482%	115.16V
5	1.500A	7.524	78.326%	0.400
5	5.015V	9.606	78.326%	115.15V
6	3.000A	14.959	77.296%	0.466
6	4.986V	19.353	77.296%	115.15V

Test #	5VSB	DC/AC (Watts)	Efficiency	PF/AC Volts
1	0.045A	0.227	65.230%	0.011
1	5.046V	0.348	65.230%	230.34V
2	0.090A	0.454	71.049%	0.020
2	5.044V	0.639	71.049%	230.33V
3	0.550A	2.770	76.987%	0.105
3	5.036V	3.598	76.987%	230.32V
4	1.000A	5.028	78.050%	0.171
4	5.027V	6.442	78.050%	230.32V
5	1.500A	7.528	78.286%	0.228
5	5.017V	9.616	78.286%	230.32V
6	3.000A	14.965	78.077%	0.327
6	4.988V	19.167	78.077%	230.31V

Protection Features

Supplementary Tests (For Reference)

Typical Load Tests

Test #	12V	5V	3.3V	5VSB	DC/AC (Watts)	Efficiency	Fan Speed (RPM)	PSU Noise (dB[A])	Temps (In/Out)	PF/AC Volts
1	4.426A	1.981A	2.003A	0.994A	74.964	86.350%	0	<6.0	45.68°C	0.976
1	12.057V	5.046V	3.296V	5.032V	86.814	86.350%	0	<6.0	40.72°C	115.17V
2	9.890A	2.974A	3.006A	1.194A	150.044	89.565%	0	<6.0	46.61°C	0.991
2	12.047V	5.042V	3.294V	5.027V	167.526	89.565%	0	<6.0	40.96°C	115.17V
3	15.726A	3.473A	3.509A	1.394A	225.052	91.126%	0	<6.0	48.28°C	0.995
3	12.018V	5.040V	3.292V	5.022V	246.967	91.126%	0	<6.0	41.85°C	115.17V
4	21.560A	3.971A	4.009A	1.595A	300.053	91.026%	0	<6.0	48.81°C	0.995
4	12.006V	5.038V	3.291V	5.018V	329.636	91.026%	0	<6.0	41.94°C	115.12V
5	27.021A	4.964A	5.015A	1.795A	374.621	90.381%	361	7.2	42.58°C	0.994
5	11.995V	5.037V	3.290V	5.015V	414.492	90.381%	361	7.2	49.84°C	115.11V
6	32.530A	5.961A	6.022A	1.996A	449.525	89.729%	490	10.9	42.77°C	0.995
6	11.980V	5.034V	3.289V	5.011V	500.982	89.729%	490	10.9	50.70°C	115.11V
7	38.080A	6.958A	7.027A	2.198A	524.855	88.989%	712	21.0	43.51°C	0.995
7	11.968V	5.031V	3.288V	5.006V	589.795	88.989%	712	21.0	52.37°C	115.11V
8	43.636A	7.957A	8.034A	2.400A	600.168	88.158%	942	29.7	43.88°C	0.996
8	11.957V	5.028V	3.286V	5.002V	680.789	88.158%	942	29.7	53.14°C	115.11V
9	49.566A	8.461A	8.525A	2.400A	674.727	87.338%	1244	38.2	44.80°C	0.996
9	11.948V	5.025V	3.284V	5.000V	772.544	87.338%	1244	38.2	54.75°C	115.10V
10	55.308A	8.964A	9.048A	3.009A	749.982	86.381%	1512	42.5	45.23°C	0.997
10	11.938V	5.022V	3.282V	4.986V	868.225	86.381%	1512	42.5	55.74°C	115.10V
11	61.658A	8.969A	9.052A	3.011A	825.230	85.461%	1914	48.1	46.58°C	0.997
11	11.929V	5.019V	3.281V	4.982V	965.625	85.461%	1914	48.1	57.40°C	115.12V
CL1	0.116A	18.002A	17.999A	0.000A	151.036	82.569%	592	15.2	42.86°C	0.992
CL1	12.024V	5.026V	3.287V	5.076V	182.921	82.569%	592	15.2	49.79°C	115.15V
CL2	62.528A	1.000A	1.000A	1.000A	760.339	86.946%	1907	48.4	45.44°C	0.997
CL2	11.947V	5.025V	3.282V	5.011V	874.498	86.946%	1907	48.4	55.98°C	115.20V

The results above are not used in the certification process

Test #	12V	5V	3.3V	5VSB	DC/AC (Watts)	Efficiency	Fan Speed (RPM)	PSU Noise (dB[A])	Temps (In/Out)	PF/AC Volts
1	4.426A	1.981A	2.003A	0.994A	74.959	87.221%	0	<6.0	45.19°C	0.839
1	12.056V	5.046V	3.296V	5.032V	85.941	87.221%	0	<6.0	40.29°C	230.36V
2	9.889A	2.975A	3.004A	1.194A	150.031	90.974%	0	<6.0	46.41°C	0.938
2	12.047V	5.042V	3.294V	5.027V	164.916	90.974%	0	<6.0	40.76°C	230.36V
3	15.725A	3.473A	3.508A	1.394A	225.037	92.710%	0	<6.0	47.30°C	0.965
3	12.018V	5.040V	3.292V	5.023V	242.732	92.710%	0	<6.0	41.18°C	230.36V
4	21.559A	3.970A	4.011A	1.595A	300.045	92.863%	0	<6.0	48.61°C	0.977
4	12.006V	5.039V	3.291V	5.018V	323.105	92.863%	0	<6.0	41.96°C	230.36V
5	27.020A	4.965A	5.017A	1.795A	374.594	92.563%	362	7.3	42.16°C	0.983
5	11.994V	5.037V	3.290V	5.015V	404.691	92.563%	362	7.3	49.44°C	230.36V
6	32.529A	5.962A	6.021A	1.996A	449.515	92.175%	491	10.9	42.60°C	0.986
6	11.980V	5.034V	3.289V	5.011V	487.677	92.175%	491	10.9	50.61°C	230.36V
7	38.083A	6.957A	7.028A	2.198A	524.858	91.691%	712	21.0	43.07°C	0.988
7	11.967V	5.032V	3.288V	5.006V	572.419	91.691%	712	21.0	51.52°C	230.37V
8	43.638A	7.958A	8.035A	2.400A	600.165	91.163%	942	29.7	43.91°C	0.990
8	11.956V	5.029V	3.286V	5.002V	658.345	91.163%	942	29.7	53.08°C	230.39V
9	49.570A	8.459A	8.525A	2.400A	674.714	90.643%	1218	37.5	44.30°C	0.991
9	11.947V	5.025V	3.284V	5.000V	744.361	90.643%	1218	37.5	54.23°C	230.40V
10	55.310A	8.961A	9.046A	3.009A	749.938	90.040%	1515	42.6	45.91°C	0.992
10	11.937V	5.022V	3.283V	4.986V	832.890	90.040%	1515	42.6	56.20°C	230.43V
11	61.658A	8.967A	9.053A	3.011A	825.169	89.427%	1913	48.1	46.60°C	0.992
11	11.928V	5.019V	3.281V	4.983V	922.732	89.427%	1913	48.1	57.45°C	230.46V
CL1	0.116A	18.001A	17.998A	0.000A	151.044	83.635%	591	15.2	42.31°C	0.946
CL1	12.021V	5.026V	3.288V	5.077V	180.598	83.635%	591	15.2	49.74°C	230.39V
CL2	62.516A	1.000A	1.002A	1.000A	760.207	90.506%	1912	48.1	45.69°C	0.992
CL2	11.947V	5.026V	3.283V	5.012V	839.955	90.506%	1912	48.1	56.16°C	230.40V

The results above are not used in the certification process

Light Load Tests

Test #	12V	5V	3.3V	5VSB	DC/AC (Watts)	Efficiency	Fan Speed (RPM)	PSU Noise (dB[A])	PF/AC Volts
1	1.239A	0.493A	0.500A	0.197A	19.992	80.087%	0	<6.0	0.832
1	11.976V	5.072V	3.310V	5.070V	24.963	80.087%	0	<6.0	115.17V
2	2.478A	0.990A	1.000A	0.397A	39.983	85.115%	0	<6.0	0.937
2	11.977V	5.051V	3.299V	5.047V	46.975	85.115%	0	<6.0	115.17V
3	3.720A	1.486A	1.501A	0.595A	60.013	87.199%	0	<6.0	0.967
3	11.979V	5.048V	3.298V	5.041V	68.823	87.199%	0	<6.0	115.17V
4	4.925A	1.982A	2.000A	0.795A	79.963	86.916%	0	<6.0	0.978
4	12.054V	5.046V	3.296V	5.036V	92.000	86.916%	0	<6.0	115.17V

The results above are not used in the certification process

Test #	12V	5V	3.3V	5VSB	DC/AC (Watts)	Efficiency	Fan Speed (RPM)	PSU Noise (dB[A])	PF/AC Volts
1	1.239A	0.493A	0.499A	0.197A	19.989	79.883%	0	<6.0	0.446
1	11.975V	5.072V	3.310V	5.070V	25.023	79.883%	0	<6.0	230.36V
2	2.478A	0.990A	1.001A	0.396A	39.979	85.696%	0	<6.0	0.663
2	11.976V	5.051V	3.300V	5.046V	46.652	85.696%	0	<6.0	230.37V
3	3.720A	1.485A	1.501A	0.595A	60.008	87.875%	0	<6.0	0.780
3	11.979V	5.048V	3.298V	5.041V	68.288	87.875%	0	<6.0	230.36V
4	4.925A	1.982A	2.001A	0.794A	79.958	87.707%	0	<6.0	0.852
4	12.054V	5.045V	3.296V	5.036V	91.165	87.707%	0	<6.0	230.36V

The results above are not used in the certification process

Ripple Measurements

Test	12V	5V	3.3V	5VSB	Pass/Fail
10% Load	4.50mV	3.30mV	3.30mV	4.90mV	Pass
20% Load	4.90mV	3.60mV	3.00mV	4.90mV	Pass
30% Load	8.10mV	3.50mV	3.30mV	5.20mV	Pass
40% Load	6.90mV	3.50mV	3.00mV	4.90mV	Pass
50% Load	6.40mV	3.80mV	3.10mV	5.00mV	Pass
60% Load	6.30mV	6.80mV	9.70mV	7.30mV	Pass
70% Load	6.10mV	4.00mV	3.50mV	5.40mV	Pass
80% Load	6.10mV	4.50mV	6.20mV	5.30mV	Pass
90% Load	5.90mV	4.30mV	7.60mV	5.30mV	Pass
100% Load	8.90mV	5.00mV	6.80mV	7.30mV	Pass
110% Load	9.00mV	5.10mV	9.80mV	6.40mV	Pass
Crossload1	5.30mV	4.60mV	7.90mV	6.10mV	Pass
Crossload2	9.30mV	4.50mV	3.70mV	5.80mV	Pass

The results above are not used in the certification process

Test	12V	5V	3.3V	5VSB	Pass/Fail
10% Load	4.90mV	3.50mV	3.30mV	5.30mV	Pass
20% Load	4.70mV	3.40mV	2.90mV	5.10mV	Pass
30% Load	8.10mV	3.50mV	3.00mV	4.90mV	Pass
40% Load	7.20mV	3.70mV	3.20mV	5.50mV	Pass
50% Load	6.60mV	3.70mV	3.00mV	5.70mV	Pass
60% Load	6.40mV	7.20mV	9.80mV	7.90mV	Pass
70% Load	6.70mV	3.90mV	3.70mV	5.30mV	Pass
80% Load	6.70mV	4.40mV	6.60mV	5.50mV	Pass
90% Load	6.20mV	4.90mV	7.10mV	5.50mV	Pass
100% Load	8.90mV	5.10mV	7.10mV	6.60mV	Pass
110% Load	9.50mV	5.30mV	9.00mV	6.20mV	Pass
Crossload1	5.20mV	4.10mV	7.70mV	5.40mV	Pass
Crossload2	5.30mV	4.50mV	8.00mV	6.30mV	Pass

The results above are not used in the certification process

Corsair RM750x

Top side

Power specifications label