CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Version:00
Jemip JP-550G2
Serial Number-
Lab IDJP55003000
Certification ID253000
  • Test Result Report ID: 25PS3000A
  • Certificate Issue Date: Oct 17, 2025
115V230V
Scheme: ETA-EMI PSU
115V230V
Scheme: LAMBDA PSU
Aristeidis Bitziopoulos, Certification Body General Manager

General Information

DUT Information

BrandJemip
Manufacturer (OEM)Dongguan Desheng Electronics Co., Ltd.
SeriesG2 Gaming
Model NumberJP-550G2
Serial Number-
DUT NotesThe power ok signal and the protection features need adjustment.

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)8
Rated Frequency (Hz)50-60
Rated Power (W)550
TypeATX12V
Dimensions (W x H x D)
Cooling120mm Fan (Unlabeled)
Semi-Passive Operation✗
Cable DesignFixed cables

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps1515452.50.3
Watts10054012.53.6
Total Max. Power (W)550

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

Cables and Connectors(Non-accredited measurements)

Captive Cables
Description Cable Count Connector Count (Total) Gauge In Cable Capacitors
ATX connector 20+4 pin (510mm) 1 1 18-20AWG No
4+4 pin EPS12V (620mm) 1 1 18AWG No
6+2 pin PCIe (630mm) 1 1 18AWG No
SATA (450mm+150mm+150mm) / 4-pin Molex (+150mm) 1 3 / 1 18AWG No
SATA (400mm+150mm) / 4-pin Molex (+150mm) / FDD (+150mm) 1 2 / 1 / 1 18AWG No

Parts Description

General Data
Manufacturer (OEM) Litest
PCB Type Double-Sided
Primary Side
Transient Filter 2x Y caps, 1x X caps, 1x CM chokes
Inrush Protection NTC Thermistor M72 2.5D-15 (2.5 Ohm @ 25°C) & Relay
Bridge Rectifier
2x GBU30K (800V, 30A @ 25°C)
APFC MOSFETs
2x Shenzhen SIF20N50F (500V, 13A @ 100°C, Rds(on): 0.28mOhm)
APFC Boost Diode
Champion CMPFCD86 (600V, 8A @ 140°C)
Bulk Cap(s)
GD (420V, 390uF, 2000h @ 105°C, SH(HT))
Main Switchers
2x Shenzhen SIF20N50F (500V, 13A @ 100°C, Rds(on): 0.28mOhm)

PFC/PWM Combo Controller

Xi'an Safety-Chip SC3805B
Topology Primary side: APFC, Double Forward
Secondary side: [12V] Passive Rectification & [Minor Rails] DC-DC converters
Secondary Side
+12V MOSFETs 4x New Star NSP60T20A
5V & 3.3V DC-DC Converters: 4x PTJ030N03LA
PWM Controller(s): ANPEC APW7159C
Filtering Capacitors

Electrolytic:
7x Yungli (@ 105°C)
Polymer:
6x no info
Supervisor IC Grenergy GR8313F
Fan Model Dong Guan Chao Long 12025 (120mm Sleeve Bearing Fan) (Unlabeled)
5VSB Circuit
Rectifier (High Side)
Dongke DK5V45R25S (45V, 25mOhm)
Standby PWM Controller
Xi'an Safety-ChipSC2522S

Test Results

Temperature & Compliance Info

Temperature Range (°C /°F)30-32 / 86-89.6
ErP Lot 3/6 Ready✓
(EU) No 617/2013 Compliance✓
ALPM (Alternative Low Power Mode) compatible✓

Performance Summary

Efficiency RatingBRONZE
Noise RatingStandard+
Average Efficiency (>1450 load combinations)83.756%
Average Noise Output (>1450 Load Combinations)39.01dBA
Average PF (>1450 Load Combinations)0.987
Efficiency With 10W (≤500W) or 2% (>500W) Load46.225%
Standby Power Consumption0.0814W
12V Ripple (Full Load)44.17mV
5V Ripple (Full Load)43.02mV
3.3V Ripple (Full Load)33.50mV
5VSB Ripple (Full Load)19.61mV
12V Load Regulation2.60%
5V Load Regulation3.76%
3.3V Load Regulation7.77%
5VSB Load Regulation6.84%
Inrush Current61.150A
Efficiency Rating
Noise Rating
Average Efficiency (>1450 load combinations)0.000%
Average Noise Output (>1450 Load Combinations)0.00dBA
Average PF (>1450 Load Combinations)0.000
Efficiency With 10W (≤500W) or 2% (>500W) Load0.000%
Standby Power Consumption0.0000W
12V Ripple (Full Load)0.00mV
5V Ripple (Full Load)0.00mV
3.3V Ripple (Full Load)0.00mV
5VSB Ripple (Full Load)0.00mV
12V Load Regulation0.00%
5V Load Regulation0.00%
3.3V Load Regulation0.00%
5VSB Load Regulation0.00%
Inrush Current126.120A
Hold-Up Time & Power Ok Signal23.50ms
AC Loss to PWR_OK Hold Up Time27.50ms
PWR_OK Inactive to DC Loss Delay-4.00ms
PSU Timings: T1 (20% / 100%)109.0ms107.0ms
PSU Timings: T3 (20% / 100%)123.0ms124.0ms
12V OCP (30.4°C / °C)-
5V OCP (30.4°C / °C)-
3.3V OCP (30.4°C / °C)21.5A (143.33%), 3.135V *Voltage Drop (3.025V @ 28.8A) - Broke
5VSB OCP (30.4°C / °C)4.4A (176.00%), 4.814V
OPP (0.00°C / 0.00°C)0.00%0.00%

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)23.5
AC Loss to PWR_OK Hold Up Time (ms)27.5
PWR_OK Inactive to DC Loss Delay (ms)-4

Vampire Power

Tables

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 114.87 V 114.82 V 113.85 V 114.91 V 116.15 V PASS
Mains Frequency: 60.00 Hz 59.98 Hz 59.40 Hz 60.02 Hz 60.60 Hz PASS
Mains Voltage CF: 1.416 1.416 1.340 1.417 1.490 PASS
Mains Voltage THD: 0.14 % 0.11 % N/A 0.18 % 2.00 % PASS
Real Power: 0.081 W 0.059 W N/A 0.106 W N/A N/A
Apparent Power: 5.064 W 5.037 W N/A 5.090 W N/A N/A
Power Factor: 0.015 N/A N/A N/A N/A N/A

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

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

Conducted Emissions EN55032 & CISPR 32

NEUTRAL
PHASE

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 0.231W 65.686% 0.068
5.124V 0.352W 114.87V
2 0.09A 0.461W 74.129% 0.117
5.121V 0.622W 114.87V
3 0.55A 2.8W 81.889% 0.371
5.091V 3.42W 114.88V
4 1A 5.063W 80.917% 0.443
5.063V 6.257W 114.87V
5 1.5A 7.546W 79.662% 0.47
5.03V 9.472W 114.87V
6 2.5A 12.413W 76.501% 0.5
4.965V 16.226W 114.87V

Protection Features

OCP (Normal @ 30.4°C)12V: -
5V: -
3.3V: 21.5A (143.33%), 3.135V *Voltage Drop (3.025V @ 28.8A) - Broke
5VSB: 4.4A (176.00%), 4.814V
OCP (Hot @ -°C)-
OPP (Normal @ -°C)-
OPP (Hot @ -°C)-
OTP✓ (135°C @ Heat Sink)
SCP12V to Earth: ✓
5V to Earth: ✓
3.3V to Earth: ✓
5VSB to Earth: ✓
-12V to Earth: ✓
PWR_OKInaccurate
Conducted Emissions EN55032 & CISPR 32✗
NLO✓
Fan Failure Protection✗
SIPSurge: None
Inrush: NTC & Bypass Relay

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
10% 2.738A 1.966A 1.944A 0.993A 55.003 75.404% 1413 34.2 34.22°C 0.936
12.200V 5.086V 3.394V 5.036V 72.947 39.1°C 115.01V
20% 6.495A 2.965A 2.946A 1.198A 109.941 82.984% 1481 37.1 34.72°C 0.973
12.169V 5.059V 3.36V 5.007V 132.485 40°C 115V
30% 10.616A 3.473A 3.449A 1.406A 164.937 85.495% 1563 37.1 35.26°C 0.978
12.141V 5.038V 3.349V 4.979V 192.924 41.19°C 114.98V
40% 14.764A 3.986A 3.968A 1.615A 220.019 86.414% 1631 39.5 35.68°C 0.982
12.111V 5.018V 3.327V 4.953V 254.613 41.91°C 114.96V
50% 18.584A 5.011A 5.006A 1.828A 275.013 86.319% 1709 42 36.45°C 0.984
12.080V 4.99V 3.296V 4.923V 318.596 43.61°C 114.94V
60% 22.428A 6.047A 6.066A 2A 329.796 85.764% 1782 42.3 36.93°C 0.986
12.048V 4.962V 3.264V 4.894V 384.538 45.46°C 114.92V
70% 26.292A 7.098A 7.147A 2.264A 385.006 85.031% 1814 42.3 37.41°C 0.988
12.015V 4.932V 3.233V 4.859V 452.785 47.5°C 114.9V
80% 30.180A 8.157A 8.251A 2.38A 439.466 84.173% 1820 42.3 37.95°C 0.989
11.981V 4.902V 3.199V 4.833V 522.101 49.71°C 114.88V
90% 34.486A 8.708A 8.828A 2.496A 494.483 83.353% 1822 42.3 38.92°C 0.99
11.947V 4.879V 3.172V 4.808V 593.245 52.14°C 114.85V
100% 38.826A 9.26A 9.429A 2.614A 549.597 82.221% 1821 42.3 39.96°C 0.988
11.910V 4.859V 3.15V 4.783V 668.444 56.2°C 114.83V
110% 42.719A 10.302A 10.618A 2.614A 604.452 82.173% 1826 42.3 40.36°C 0.992
11.907V 4.852V 3.136V 4.781V 735.582 46.25°C 114.82V
CL1 1.974A 12.192A 12.349A 0.499A 126.391 78.987% 1612 38.5 35.07°C 0.976
12.155V 4.936V 3.215V 5.007V 160.014 41.77°C 114.99V
CL2 1.971A 14.502A 0.975A 0.497A 101.486 78.616% 1593 38.5 35.12°C 0.973
12.177V 4.943V 3.386V 5.033V 129.095 41.84°C 115V
CL3 1.970A 0.986A 13.792A 0.497A 76.003 75.124% 1581 38.5 35.14°C 0.971
12.179V 5.071V 3.227V 5.034V 101.172 41.81°C 115.01V
CL4 45.121A 1.001A 0.996A 0.505A 549.889 83.865% 1833 <6.0 38.38°C 0.991
11.948V 4.995V 3.314V 4.954V 655.692 49.35°C 114.83V

The results above are not used in the certification process

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]) Temps (In/Out) PF/AC Volts
20W 1.216A 0.489A 0.481A 0.196A 20.002 57.68% 916 22.8 30.34°C 0.811
12.221V 5.115V 3.434V 5.094V 34.678 34.3°C 115.03V
40W 2.678A 0.685A 0.674A 0.295A 40.002 71.027% 1187 30.3 31.27°C 0.912
12.210V 5.108V 3.425V 5.083V 56.319 36.09°C 115.03V
60W 4.142A 0.882A 0.869A 0.394A 60.001 77.142% 1329 33.3 32.98°C 0.947
12.198V 5.101V 3.417V 5.072V 77.783 37.75°C 115.02V
80W 5.606A 1.08A 1.065A 0.494A 79.949 80.671% 1382 34.2 33.49°C 0.97
12.187V 5.093V 3.408V 5.061V 99.106 38.28°C 115.01V

The results above are not used in the certification process

The results above are not used in the certification process

Ripple Measurements

Test12V5V3.3V5VSBPass/Fail
10% Load23.53mV24.27mV21.70mV14.37mVPass
20% Load26.34mV26.17mV22.26mV14.88mVPass
30% Load28.59mV26.74mV23.96mV15.81mVPass
40% Load30.33mV28.64mV25.24mV16.78mVPass
50% Load33.30mV30.95mV25.86mV17.29mVPass
60% Load33.24mV32.84mV26.93mV19.45mVPass
70% Load34.57mV35.57mV29.96mV19.81mVPass
80% Load46.34mV40.13mV32.94mV22.53mVPass
90% Load59.33mV45.11mV38.53mV22.73mVPass
100% Load44.17mV43.02mV33.50mV19.61mVPass
110% Load0.00mV0.00mV0.00mV0.00mVPass
Crossload132.07mV31.77mV26.88mV16.06mVPass
Crossload231.81mV29.72mV24.27mV16.42mVPass
Crossload332.02mV25.92mV30.53mV14.88mVPass
Crossload439.04mV40.41mV28.91mV20.09mVPass

The results above are not used in the certification process

The results above are not used in the certification process

Jemip JP-550G2

Top side
Power specifications label
Fan
PSU Internals
All data and graphs included in this test report can be used by any individual on the following conditions:
› It should be mentioned that the test results are provided by Cybenetics
› The link to the original test results document should be provided in any case
Cybenetics offers the ETA and Lambda voluntary certification programs, through which the efficient and silent power supplies are promoted
CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
www.cybenetics.com - info@cybenetics.com