EVGA SuperNOVA 650 G3 PSU Review: Excellence Evolved

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Teardown & Component Analysis

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General Data
Manufacturer (OEM)Super Flower
Platform ModelLeadex II
Primary Side
Transient Filter4x Y caps, 3x X caps, 2x CM chokes, 1x MOV
Inrush ProtectionNTC thermistor & diode
Bridge Rectifier(s)1x
APFC MOSFETs2x Infineon IPA50R199CP (550V, 15A @ 100°C, 0.14Ω)
APFC Boost Diode1x CREE C3D04060A (600V, 4A @ 155°C)
Hold-up Cap(s)1x Nippon Chemi-Con (400V, 390uF, 2000h @ 105°C, KMR)
Main Switchers2x Infineon IPA50R199CP (550V, 15A @ 100°C, 0.14Ω)
APFC ControllerSF29603
PWM ControllerSF29605 & S9602
TopologyPrimary side: Half-bridge & LLC resonant controller Secondary side: Synchronous rectification & DC-DC converters
Secondary Side
+12V MOSFETs4x Infineon IPP041N04N G (40V, 90A @ 100°C, 4.1mΩ)
5V & 3.3VDC-DC Converters: 8x Infineon BSC0906NS (30V, 40A @ 100°C, 4.5mΩ) PWM Controller: no info
Filtering CapacitorsElectrolytics: Chemi-Con (4-10,000h @ 105°C, KY), Chemi-Con (105°C, W), Chemi-Con (1-2000h @ 105°C, KMG), Chemi-Con (1000h @ 105°C, KRG), Chemi-Con (105°C, W) Polymers: Chemi-Con
Supervisor ICSF29605 & LM324ADG & LM339A
Fan ModelEVGA H1282412L (130mm, 12V, 0.18A, 1730RPM, hydro dynamic bearing)
5VSB Circuit
RectifierMospec S10C60C
Standby PWM Controller29604

This looks to be the new Leadex II platform, made by Super Flower, which offers improved performance compared to the G2 series' Leadex design. We already saw this platform in EVGA's 850 G3. Only the 5VSB circuit remains the same (though our sources say the OEM is already working on an update featuring a more efficient 5VSB regulator).

Super Flower uses a 130mm HDB fan since a larger-diameter one wouldn't fit in the compact chassis. The resonant controller is not the one we saw in the 850 G3 (SF201T), but rather an IC code-named SF29605. On the secondary side, a mix of Chemi-Con electrolytic and polymer caps filter the rails.

The build quality is generally good. However, we'd prefer capacitors with a longer lifetime on the modular board instead of the KRG caps. Fortunately, stress on the caps is low in this region since most of the ripple filtering takes place on the main PCB's secondary side.

Here are some photos showing the PSU’s major parts.

The following video shows the PSU’s internals.


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Aris Mpitziopoulos
Contributing Editor

Aris Mpitziopoulos is a contributing editor at Tom's Hardware, covering PSUs.