CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Zalman TeraMax II 750W
Serial Number
Lab IDZL75002154
  • Report: 23PS2154A
  • Receipt Date: Mar 8, 2023
  • Test Date: Mar 16, 2023
  • Report Date: Mar 20, 2023
115V230V
Efficiency Rating
115V230V
Noise Rating
Aristeidis Bitziopoulos, Laboratory General Manager

General Information

DUT Information

BrandZalman
Manufacturer (OEM)Jiumeng
SeriesTeraMax
Model NumberZM750-TMX2
Serial Number
DUT NotesThe TMX units are the same as TMX2 ones minus the 12VHPWR output port at the modular panel of the PSU

DUT Specifications

Rated Voltage (Vrms)100-240
Rated Current (Arms)10-5
Rated Frequency (Hz)50-60
Rated Power (W)750
TypeATX12V
Cooling120mm Fluid Dynamic Bearing Fan
(D12BM-12)
Semi-Passive Operation✗
Cable DesignFully Modular

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps202062.530.3
Watts120750153.6
Total Max. Power (W)750

Test Equipment

Electronic Loads Chroma 63601-5 x2
Chroma 63600-2
63640-80-80 x10
63610-80-20
AC Sources Chroma 6530, APM SP300VAC4000W-P
Power Analyzers RS HMC8015, N4L PPA1530, N4L PPA5530
Oscilloscopes Picoscope 4444, Rigol DS7014, 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, Keithley 2015 - THD
UPS FSP Champ Tower 3kVA, CyberPower OLS3000E 3kVA
Isolation Transformer 4kVA
Testing Methodology Cybenetics PSU Test Protocol

Cables and Connectors

Modular Cables
Description Cable Count Connector Count (Total) Gauge In Cable Capacitors
ATX connector 20+4 pin (600mm) 1 1 18-20AWG No
4+4 pin EPS12V (700mm) 2 2 18AWG No
6+2 pin PCIe (550mm+150mm) 3 6 18AWG No
12+4 pin PCIe (600mm) (600W) 1 1 16-26AWG No
SATA (500mm+150mm+150mm+150mm) 2 8 18AWG No
4-pin Molex (+500mm+150mm+150mm) / FDD (+150mm) 1 3 / 1 18-22AWG No

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✓
ATX v3.1 PSU Power Excursion✓

Performance Summary 115V

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)13.5
AC Loss to PWR_OK Hold Up Time (ms)11.2
PWR_OK Inactive to DC Loss Delay (ms)2.3

Vampire Power

Tables 115V

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 114.88 V 114.82 V 113.85 V 114.93 V 116.15 V PASS
Mains Frequency: 60.00 Hz 59.94 Hz 59.40 Hz 60.04 Hz 60.60 Hz PASS
Mains Voltage CF: 1.418 1.417 1.340 1.421 1.490 PASS
Mains Voltage THD: 0.14 % 0.08 % N/A 0.25 % 2.00 % PASS
Real Power: 0.062 W 0.039 W N/A 0.086 W N/A N/A
Apparent Power: 9.377 W 9.355 W N/A 9.407 W N/A N/A
Power Factor: 0.008 N/A N/A N/A N/A N/A

Efficiency Graph

115V

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

115V

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

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) 115V

Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.229W 66.771% 0.038
5.1V 0.343W 114.87V
2 0.09A 0.459W 73.835% 0.069
5.099V 0.622W 114.87V
3 0.55A 2.799W 80.901% 0.276
5.089V 3.46W 114.87V
4 1A 5.08W 81.266% 0.351
5.08V 6.251W 114.86V
5 1.5A 7.604W 80.927% 0.398
5.069V 9.395W 114.87V
6 3A 15.109W 78.712% 0.461
5.036V 19.196W 114.86V

Supplementary Tests (For Reference)

Typical Load Tests 115V

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
10% 4.410A 1.963A 1.967A 0.986A 74.992 85.477% 902 22.3 40.02°C 0.962
12.105V 5.093V 3.355V 5.07V 87.735 44.23°C 114.83V
20% 9.836A 2.95A 2.959A 1.186A 149.911 89.324% 910 22.6 40.8°C 0.977
12.100V 5.084V 3.345V 5.061V 167.83 45.39°C 114.81V
30% 15.615A 3.447A 3.461A 1.386A 224.907 90.79% 917 22.8 41.05°C 0.987
12.095V 5.076V 3.337V 5.052V 247.727 46.18°C 114.78V
40% 21.404A 3.946A 3.965A 1.586A 299.986 91.293% 956 24.3 41.88°C 0.991
12.090V 5.069V 3.329V 5.043V 328.598 47.51°C 114.77V
50% 26.794A 4.941A 4.971A 1.788A 374.305 91.273% 1063 26.6 42.12°C 0.993
12.085V 5.059V 3.319V 5.033V 410.098 48.27°C 114.74V
60% 32.237A 5.94A 5.984A 1.99A 449.229 91.028% 1150 29.2 42.56°C 0.994
12.080V 5.051V 3.309V 5.024V 493.505 49.25°C 114.72V
70% 37.685A 6.943A 7.003A 2.193A 524.166 90.673% 1264 31.8 43.43°C 0.995
12.075V 5.042V 3.299V 5.015V 578.088 50.5°C 114.69V
80% 43.203A 7.95A 8.028A 2.297A 599.4 90.149% 1385 33.8 43.68°C 0.996
12.071V 5.032V 3.288V 5.007V 664.892 51.77°C 114.67V
90% 49.059A 8.459A 8.537A 2.4A 674.437 89.664% 1552 37.1 44.65°C 0.996
12.066V 5.024V 3.279V 5V 752.19 53.66°C 114.64V
100% 54.719A 8.972A 9.081A 3.011A 749.667 88.996% 1650 39.0 45.78°C 0.997
12.061V 5.015V 3.27V 4.982V 842.361 55.85°C 114.61V
110% 60.251A 9.99A 10.217A 3.015A 824.705 88.244% 1792 41.4 46.9°C 0.997
12.057V 5.005V 3.259V 4.976V 934.571 57.84°C 114.58V
CL1 0.114A 14.309A 14.411A 0A 121.294 82.927% 935 23.5 40.57°C 0.974
12.097V 5.046V 3.31V 5.078V 146.265 45.98°C 114.81V
CL2 0.114A 19.819A 0A 0A 101.328 82.16% 926 23.1 40.92°C 0.974
12.104V 5.043V 3.336V 5.086V 123.329 47.93°C 114.83V
CL3 0.114A 0A 19.909A 0A 67.381 76.192% 920 22.9 40.18°C 0.963
12.101V 5.08V 3.315V 5.082V 88.436 49.22°C 114.84V
CL4 62.103A 0A 0A 0.001A 749.494 89.966% 1607 38.6 46.13°C 0.997
12.069V 5.047V 3.301V 5.052V 833.093 57.08°C 114.62V

The results above are not used in the certification process

Light Load Tests 115V

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
20W 1.227A 0.49A 0.49A 0.196A 19.989 70.535% 843 21.8 36.53°C 0.748
12.096V 5.103V 3.366V 5.092V 28.497 39.63°C 114.85V
40W 2.702A 0.686A 0.687A 0.295A 39.99 80.33% 868 22.1 37.47°C 0.891
12.096V 5.1V 3.363V 5.088V 49.784 40.76°C 114.84V
60W 4.174A 0.882A 0.884A 0.393A 59.99 84.109% 884 22.2 38.72°C 0.944
12.104V 5.098V 3.36V 5.085V 71.327 42.48°C 114.84V
80W 5.642A 1.079A 1.081A 0.492A 79.923 86.954% 895 22.2 39.56°C 0.967
12.106V 5.096V 3.358V 5.081V 91.914 43.52°C 114.83V

The results above are not used in the certification process

Ripple Measurements 115V

Test12V5V3.3V5VSBPass/Fail
10% Load17.75mV13.24mV14.88mV8.93mVPass
20% Load27.31mV14.06mV17.44mV9.65mVPass
30% Load25.93mV14.22mV23.65mV10.16mVPass
40% Load24.91mV21.60mV26.98mV11.24mVPass
50% Load24.20mV14.88mV33.66mV15.55mVPass
60% Load23.12mV13.86mV35.45mV17.34mVPass
70% Load22.76mV14.06mV35.19mV14.26mVPass
80% Load20.72mV11.60mV22.21mV13.44mVPass
90% Load24.96mV12.88mV27.29mV15.03mVPass
100% Load39.10mV17.02mV30.67mV19.41mVPass
110% Load42.54mV23.26mV35.83mV20.53mVPass
Crossload141.51mV23.62mV30.72mV11.36mVPass
Crossload222.76mV22.02mV26.52mV9.60mVPass
Crossload317.08mV20.63mV16.37mV10.31mVPass
Crossload438.58mV16.52mV23.83mV16.83mVPass

The results above are not used in the certification process

Zalman TeraMax II 750W

Top side
Power specifications label
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
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