CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Zalman GigaMax III 850W
Serial Number
Lab IDZL85002187
  • Report: 23PS2187A
  • Receipt Date: May 22, 2023
  • Test Date: May 30, 2023
  • Report Date: May 30, 2023
115V230V
Efficiency Rating
115V230V
Noise Rating
Aristeidis Bitziopoulos, Laboratory General Manager

General Information

DUT Information

BrandZalman
Manufacturer (OEM)
SeriesGigaMax III
Model NumberZM850-GV3
Serial Number
DUT Notes

DUT Specifications

Rated Voltage (Vrms)200-240
Rated Current (Arms)7
Rated Frequency (Hz)50-60
Rated Power (W)850
TypeATX12V
Cooling120mm Fluid Dynamic Bearing Fan
(D12BM-12)
Semi-Passive Operation✗
Cable DesignSemi Modular

Power Specifications

Rail3.3V5V12V5VSB-12V
Max. PowerAmps202062.530.3
Watts130850153.6
Total Max. Power (W)850

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

Captive Cables
Description Cable Count Connector Count (Total) Gauge In Cable Capacitors
ATX connector 20+4 pin (550mm) 1 1 18-22AWG No
8 pin EPS12V (750mm) / 4+4 pin EPS12V(+150mm) 1 2 18AWG No
SATA (460mm+150mm+150mm) 2 6 18AWG No
4-pin Molex (460mm+150mm+150mm) 1 3 18AWG No
Modular Cables
6+2 pin PCIe (550mm+150mm) 1 2 18AWG No
6+2 pin PCIe (550mm) 2 2 18AWG No
12+4 pin PCIe (610mm) (600W) 1 1 16-24AWG 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 230V

Hold-Up Time & Power Ok Signal

Hold-Up Time (ms)16.4
AC Loss to PWR_OK Hold Up Time (ms)15.2
PWR_OK Inactive to DC Loss Delay (ms)1.2

Vampire Power

Tables 230V

Detailed Results
Average Min Limit Min Max Limit Max Result
Mains Voltage RMS: 229.79 V 229.76 V 227.70 V 229.85 V 232.30 V PASS
Mains Frequency: 50.00 Hz 50.00 Hz 49.50 Hz 50.00 Hz 50.50 Hz PASS
Mains Voltage CF: 1.416 1.415 1.340 1.417 1.490 PASS
Mains Voltage THD: 0.14 % 0.12 % N/A 0.17 % 2.00 % PASS
Real Power: 0.146 W 0.100 W N/A 0.204 W N/A N/A
Apparent Power: 35.652 W 35.594 W N/A 35.708 W N/A N/A
Power Factor: 0.005 N/A N/A N/A N/A N/A

Efficiency Graph

230V

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

230V

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) 230V

Test # 5VSB DC/AC (Watts) Efficiency PF/AC Volts
1 0.045A 0.23W 48.644% 0.016
5.119V 0.473W 229.79V
2 0.09A 0.461W 57.978% 0.026
5.119V 0.796W 229.81V
3 0.55A 2.808W 76.856% 0.114
5.106V 3.654W 229.8V
4 1A 5.093W 79.043% 0.182
5.093V 6.443W 229.79V
5 1.5A 7.619W 79.814% 0.211
5.079V 9.547W 229.79V
6 3A 15.104W 78.37% 0.313
5.035V 19.272W 229.79V

Supplementary Tests (For Reference)

Typical Load Tests 230V

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
10% 5.192A 1.959A 1.967A 0.984A 84.999 85.303% 771 19.5 34.21°C 0.864
12.211V 5.104V 3.356V 5.08V 99.644 38.42°C 229.78V
20% 11.400A 2.948A 2.961A 1.185A 169.936 89.213% 773 19.6 34.5°C 0.941
12.196V 5.088V 3.344V 5.064V 190.484 39.16°C 229.77V
30% 17.970A 3.448A 3.465A 1.387A 254.942 90.09% 775 19.6 35.19°C 0.963
12.181V 5.075V 3.334V 5.049V 282.987 40.27°C 229.75V
40% 24.563A 3.95A 3.971A 1.59A 340.025 90.275% 780 19.7 35.86°C 0.973
12.166V 5.063V 3.324V 5.033V 376.654 41.31°C 229.74V
50% 30.807A 4.954A 4.983A 1.794A 424.82 89.915% 1001 26.4 36.4°C 0.979
12.150V 5.047V 3.311V 5.016V 472.467 42.26°C 229.72V
60% 37.045A 5.965A 6.001A 2A 509.347 89.404% 1248 31.1 36.53°C 0.983
12.135V 5.03V 3.299V 5V 569.715 42.82°C 229.71V
70% 43.367A 6.982A 7.025A 2.208A 594.654 88.655% 1452 35.9 37.32°C 0.985
12.119V 5.013V 3.289V 4.983V 670.754 44.35°C 229.69V
80% 49.712A 8.001A 8.056A 2.316A 679.479 87.827% 1626 38.8 37.92°C 0.987
12.102V 4.996V 3.277V 4.966V 773.661 45.99°C 229.67V
90% 56.470A 8.529A 8.572A 2.424A 764.93 86.976% 1771 40.9 38.45°C 0.989
12.085V 4.982V 3.266V 4.951V 879.477 47.54°C 229.65V
100% 62.980A 9.057A 9.126A 3.049A 849.74 86.044% 1845 43.5 39.39°C 0.991
12.068V 4.968V 3.254V 4.92V 987.567 49.43°C 229.63V
110% 69.373A 10.105A 10.281A 3.057A 934.32 84.968% 1852 43.7 40.59°C 0.992
12.051V 4.947V 3.239V 4.907V 1099.62 51.52°C 229.62V
CL1 0.114A 15.772A 15.731A 0.001A 131.299 82.212% 796 20.0 34.56°C 0.926
12.207V 4.964V 3.281V 5.083V 159.709 39.98°C 229.76V
CL2 0.113A 20.053A 0A 0A 101.341 81.707% 774 19.6 34.53°C 0.898
12.216V 4.984V 3.316V 5.097V 124.032 41.55°C 229.77V
CL3 0.113A 0A 20.035A 0.001A 67.4 76.213% 769 19.5 34.34°C 0.842
12.215V 5.049V 3.295V 5.098V 88.438 43.43°C 229.78V
CL4 70.379A 0A 0A 0.001A 849.535 86.094% 1810 42.0 39.33°C 0.991
12.071V 5.054V 3.295V 5.029V 986.761 50.29°C 229.64V

The results above are not used in the certification process

Light Load Tests 230V

Test 12V 5V 3.3V 5VSB DC/AC (Watts) Efficiency Fan Speed (RPM) PSU Noise (dB[A]) Temps (In/Out) PF/AC Volts
20W 1.215A 0.488A 0.49A 0.196A 20.003 68.007% 764 19.4 30.01°C 0.528
12.225V 5.124V 3.369V 5.11V 29.413 33.1°C 229.78V
40W 2.676A 0.683A 0.686A 0.294A 39.998 77.774% 763 19.4 31.29°C 0.706
12.218V 5.121V 3.367V 5.106V 51.428 34.6°C 229.78V
60W 4.136A 0.879A 0.883A 0.392A 59.995 82.701% 764 19.4 32.06°C 0.798
12.215V 5.117V 3.364V 5.101V 72.544 35.57°C 229.78V
80W 5.594A 1.075A 1.08A 0.491A 79.938 85.335% 768 19.5 33.08°C 0.853
12.212V 5.113V 3.361V 5.096V 93.678 36.89°C 229.79V

The results above are not used in the certification process

Ripple Measurements 230V

Test12V5V3.3V5VSBPass/Fail
10% Load14.02mV13.08mV16.42mV14.22mVPass
20% Load14.07mV14.31mV17.70mV14.63mVPass
30% Load14.58mV15.27mV18.21mV17.03mVPass
40% Load16.01mV16.04mV19.13mV18.52mVPass
50% Load18.47mV17.06mV20.21mV21.13mVPass
60% Load15.45mV14.40mV18.62mV19.23mVPass
70% Load22.66mV19.16mV22.82mV21.53mVPass
80% Load26.91mV19.57mV27.78mV23.84mVPass
90% Load31.77mV20.59mV28.80mV21.89mVPass
100% Load39.99mV26.77mV31.79mV31.65mVPass
110% Load45.86mV25.94mV33.77mV29.83mVPass
Crossload117.55mV20.66mV22.73mV16.28mVPass
Crossload216.22mV22.32mV18.62mV14.22mVPass
Crossload313.66mV12.67mV21.18mV14.73mVPass
Crossload443.34mV24.99mV24.40mV23.69mVPass

The results above are not used in the certification process

Zalman GigaMax III 850W

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
www.cybenetics.com - info@cybenetics.com