NZXT HALE82-850-M 850 W Review 1

NZXT HALE82-850-M 850 W Review

Voltage Regulation & Efficiency »

A Look Inside

Before reading this page we strongly suggest to take a look at this article, which will help you understand the internal components of a PSU much better.


The OEM of the unit is Seasonic, one of the best PSU manufacturers with tons of experience in this field. For the HALE90 series NZXT had used Super Flower and now for the HALE82 Seasonic; very wise choices - both of them. To provide you a better view of the internals we removed the two APFC capacitors. As you can see, at least the experienced ones, the HALE82 units are based on Seasonic's M12II platform.


The AC receptacle along with the On/Off switch are soldered on a small PCB which also holds some components of the transient filtering stage, namely one CM choke, one X and two Y capacitors. On the main PCB we also find two CM chokes, an MOV, one X capacitor and after the bridge rectifiers two more Y caps.


The bridge rectifiers, two GBU806, are bolted on a leaning dedicated heatsink. Obviously the latter is not left leaning on purpose; apparently Seasonic's quality control does not pay attention to leaning heatsinks because the APFC heatsink isn't quite straight either. Finally, the current sense resistors and the PFC input X cap are covered by heatshrink tubing.


In the APFC three FDP18N50 mosfets along with the necessary boost diode are used. As hold up capacitors there are two parallel Nippon Chemi-Con (330μF each, 400V, 105°C, KMR series). Their max voltage rating is very close to APFC DC bus voltage, 380V. We would prefer the use of higher voltage rating caps here.


As main switches/choppers we find two SPP24N60C3 mosfets.


The combo PFC/PWM controller is a CM6802 which is soldered on a vertical daughter-board in the primary side. The standby PWM controller is an ICE2QR4765.


Next to the small transformer there is a Rubycon capacitor. Both are used by the 5VSB regulation circuit.


In the secondary side passive components are used for the +12V regulation so in total we have six 30A50CT SBRs. The minor rails are generated through two DC-DC converters which are housed on the same PCB. All filtering capacitors in the secondary side are provided by Nippon Chemi-Con and are rated at 105°C.


On a small PCB the protections IC is soldered. It's a PS223 which supports OCP (Over Current Protection) for up to two +12V rails and also features OTP (Over Temperature Protection).


On the front of the modular PCB there are four Nippon caps which filter AC ripple from the DC outputs. As you can see two +12V rails feed the modular PCB and indeed on the main PCB there are two separate islands with +12V wires.


Soldering quality on the main PCB is good however we found some rather large component leads which could cause shorts. Also although there are two +12V islands there is no shunt resistor present in both of them. Finally on the solder side of the main PCB resides an SBR10U45 which is responsible for 5VSB regulation.


The cooling fan is provided by Seasonic's favorite (for low-middle range units), ADDA. Its model number is AD1212UB-A70GL (12V, 0.5A)
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Jul 18th, 2024 12:23 EDT change timezone

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