Unboxing, product pictures and scope of delivery
The box is small because the power supply unit itself is tiny. It offers good protection and has a cover with the photo of the power supply and various stickers. Using a sleeve for the box is an easy way to add or replace data in future revisions as you don’t have to redesign the whole package.
The power supply is tiny, so the board will be crowded with parts given the maximum power of 850W. I would like to see a less restricted fan grille for better airflow. On the front, next to the power jack and power switch, is an additional switch called D.F. This forces the fan to spin backwards to clear dust buildup from inside the PSU. Enermax’s patented Dust-Free Rotation (D.F.R.) function has proven its worth and is therefore still available after all these years.
Sufficient cables and connections are supplied and all cables are of sufficient length. The 12V 2×6 connection is set to a maximum output power of 600W, which is definitely too much for an 850W power supply. Finally, the distance between the connections of the peripheral devices is sufficient at 150 mm. All cables are individually sheathed, which makes them visually more attractive. For the 12V 2×6 cable, individually sheathed wires offer greater flexibility and higher bending angles.
In tabular form, it reads like this:
Modular Cables | ||||
Description | Cable Count | Connector Count (Total) | Gauge | In Cable Capacitors |
---|---|---|---|---|
ATX connector 20 4 pin (600mm) | 1 | 1 | 18-22AWG | No |
4 4 pin EPS12V (700mm) | 1 | 1 | 16AWG | No |
8-pin EPS12V (700mm) | 1 | 1 | 16AWG | No |
2x 6 2 pin PCIe (600mm) | 2 | 4 | 16-18AWG | No |
12 4 pin PCIe (600mm) (600W) | 1 | 1 | 16-28AWG | No |
SATA (600mm 150mm 150mm 150mm) | 2 | 8 | 18AWG | No |
SATA (600mm 150mm 150mm) | 1 | 3 | 18AWG | No |
SATA (600mm 150mm) / 4-pin Molex ( 150mm 150mm) | 1 | 2 / 2 | 18AWG | No |
AC Power Cord (1360mm) – C13 coupler | 1 | 1 | 18AWG | – |
Protection circuits
The protection functions are set correctly, although the OCP value of the 12 V rail could ideally be slightly lower when cold, i.e. between 130 % and 135 %. The OCP and OPP trip points at high temperatures are significantly lower and effectively protect the power supply unit. All other important protective functions are present and work well.
OCP (Cold @ 26°C) | 12V: 97.2A (137.29%), 12.085V 5V: 25.5A (127.5%), 4.948V 3.3V: 25.9A (129.5%), 3.271V 5VSB: 4.8A (160%), 4.962V |
OCP (Hot @ 44°C) | 12V: 87.6A (123.73%), 12.103V 5V: 24.6A (123%), 4.948V 3.3V: 24.6A (123%), 3.273V 5VSB: 4.8A (160%), 4.936V |
OPP (Cold @ 26°C) | 1175.06W (138.31%) |
OPP (Hot @ 43°C) | 1060.39W (124.81%) |
OTP | ✓ (137°C @ heat sink) |
SCP | 12V to Earth: ✓ 5V to Earth: ✓ 3.3V to Earth: ✓ 5VSB to Earth: ✓ -12V to Earth: ✓ |
PWR_OK | Proper Operation |
NLO | ✓ |
Fan Failure Protection | ✗ |
SIP | Surge: MOV Inrush: NTC Thermistor & Bypass relay |
On the next page we go inside, please turn the page!
- 1 - Introduction, overview and technical data
- 2 - Unboxing, cables and protective circuits
- 3 - Teardown: Topology, components, workmanship
- 4 - Load Regulation, Ripple Suppression, Transient Resonse
- 5 - Hold-Up Time, Timings, Inrush-Current
- 6 - Average Efficiency and PF
- 7 - Fan curves and noise
- 8 - Summary and conclusion
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