CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
NCASE SFX850
Serial Number
Lab IDNC85003411
Certification ID263411
  • Test Result Report ID: 26PS3411A
  • Certificate Issue Date: Sep 10, 2026
115V230V
Scheme: ETA-EMI PSU
115V230V
Scheme: LAMBDA PSU
Outside Validation Scope
Aristeidis Bitziopoulos, Certification Body General Manager

General Information

Test Equipment

DUT Information(Non-accredited measurements)

Cables and Connectors(Non-accredited measurements)

Protection Features(Manufacturer)

Power Specifications

Parts Description

Test Results

Temperature & Compliance Info

Performance Summary

Hold-Up Time & PWR_OK Signal

Vampire Power

Tables

Graphs

Efficiency Graph

Efficiency and power factor by load range

85868788899091929394Average efficiency (%)86.0591.2491.8590.8289.8087.4592.8493.6992.9892.410-<20 %20-<40 %40-<60 %60-<80 %80-100 %axis starts at 85115V230V
85868788899091929394Average efficiency (%)0-<20 %20-<40 %40-<60 %60-<80 %80-100 %axis starts at 85115V230V
0.840.860.880.900.920.940.960.981.00Average power factor0.9710.9790.9860.9910.9930.8720.9490.9660.9740.9780-<20 %20-<40 %40-<60 %60-<80 %80-100 %axis starts at 0.84115V230V
0.840.860.880.900.920.940.960.981.00Average power factor0-<20 %20-<40 %40-<60 %60-<80 %80-100 %axis starts at 0.84115V230V
Load rangePointsEfficiency
115V
Efficiency
230V
PF
115V
PF
230V
0-<20 %228 / 22886.05%87.45%0.9710.872
20-<40 %331 / 33191.24%92.84%0.9790.949
40-<60 %327 / 32791.85%93.69%0.9860.966
60-<80 %333 / 33390.82%92.98%0.9910.974
80-100 %334 / 33489.80%92.41%0.9930.978
70-100 % (High-Load)505 / 50590.05%92.54%0.9920.977
All (published average)1553 / 155390.20%92.17%0.9850.953

INFO

The average efficiency and power factor in five ranges of load. Calculated from the 1553 (115V) and 1553 (230V) load combinations of the certification sweep, the same data that ETA and LAMBDA use (test 0 excluded). Load is the total DC output as a share of the rated 850 W. These are plain averages of the valid readings, as for the ETA rating, so the ranges combined give back the published averages.

Informational. Not part of the ETA or LAMBDA rating.

Noise Graph

Noise by load range

High-Load Index (70-100 % load)
Noise 34.1 dB(A) at 115V and 31.4 dB(A) at 230V · loudest point 39.0 dB(A)
Efficiency 90.05% / 92.54% · power factor 0.992 / 0.977 (115V / 230V)
051015202530354045Average noise (dB(A))5.05.00-<20 %fan off 100%/100%13.912.020-<40 %fan off 86%/91%20.517.840-<60 %fan off 17%/53%24.021.360-<80 %fan off 0%/7%35.733.080-100 %fan off 0%/0%115V230V
010203040Average noise (dB(A))5.05.00-<20 %off 100%/100%13.912.020-<40 %off 86%/91%20.517.840-<60 %off 17%/53%24.021.360-<80 %off 0%/7%35.733.080-100 %off 0%/0%115V230V
Load rangeNoise 115V
avg (loudest)
Noise 230V
avg (loudest)
Fan off
115V / 230V
0-<20 %5.0 (5.0)5.0 (5.0)100% / 100%
20-<40 %13.9 (22.9)12.0 (22.9)86% / 91%
40-<60 %20.5 (22.9)17.8 (22.9)17% / 53%
60-<80 %24.0 (33.9)21.3 (29.7)0% / 7%
80-100 %35.7 (39.0)33.0 (37.4)0% / 0%
70-100 % (High-Load)34.1 (39.0)31.4 (37.4)0% / 0%
All (published average)29.4 (39.0)26.7 (37.4)37% / 47%

INFO

The average noise in five ranges of load, the share of points with the fan stopped (semi-passive operation), and the High-Load Index: the same figures for all points at 70 % of the rated output and above. Calculated from the 1553 (115V) and 1553 (230V) load combinations of the certification sweep, the same data that ETA and LAMBDA use (test 0 excluded). Load is the total DC output as a share of the rated 850 W. Noise is averaged on the energy scale, as for LAMBDA, so the ranges combined give back the published average noise. Each load combination is held for about five seconds; the stabilized readings at fixed loads are under "Noise under high ambient temperature".

Informational. Not part of the ETA or LAMBDA rating.

Noise under high ambient temperature (indicative)

115V

LoadNormal ambient
fan · noise · intake
High ambient
fan · noise · intake
Noise change
10%0 RPM · <6.0 dB(A) · 32.4 °C0 RPM · <6.0 dB(A) · 48.1 °Cfan off in both
20%0 RPM · <6.0 dB(A) · 33.6 °C0 RPM · <6.0 dB(A) · 47.9 °Cfan off in both
50%0 RPM · <6.0 dB(A) · 36.8 °C1386 RPM · 22.1 dB(A) · 42.1 °Cfan starts (<6.0 → 22.1)
100%1701 RPM · 28.6 dB(A) · 30.9 °C3087 RPM · 44.0 dB(A) · 45.4 °C+15.4 dB(A)

230V

LoadNormal ambient
fan · noise · intake
High ambient
fan · noise · intake
Noise change
10%0 RPM · <6.0 dB(A) · 34.2 °C0 RPM · <6.0 dB(A) · 42.5 °Cfan off in both
20%0 RPM · <6.0 dB(A) · 35.6 °C0 RPM · <6.0 dB(A) · 43.0 °Cfan off in both
50%0 RPM · <6.0 dB(A) · 34.4 °C0 RPM · <6.0 dB(A) · 46.2 °Cfan off in both
100%2375 RPM · 37.2 dB(A) · 30.9 °C3090 RPM · 44.0 dB(A) · 45.2 °C+6.8 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

5VSB Efficiency

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

Protection Features

Supplementary Tests (For Reference)

Typical Load Tests

Light Load Tests

Ripple Measurements

NCASE SFX850

Top side
Top side
Power specifications label
Power specifications label
Fan
Fan
PSU Internals
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 runs voluntary certification programs for power supplies - ETA for efficiency, LAMBDA for noise and SAFE for safety and correct operation - and for cooling products, with DELTA for chassis soundproofing and PHI for fan airflow and static pressure. THETA rates cooler performance on AMD AM5 and Intel LGA1851 outside ISO 17065 and accreditation scope
CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus