Cooler Master V1600 Platinum V2 ATX v3.1 PSU Review

Part Analysis

General Data
Manufacturer (OEM)	Gospower
PCB Type	Double-Sided
Primary Side
Transient Filter	4x Y caps, 2x X caps, 2x CM chokes, 1x MOV & 1x MPS HF81 (X Capacitor Bleeder)
Inrush Protection	1x NTC Thermistor 16D-20 (16 Ohm) & Relay
Bridge Rectifier(s)	2x GBU2508 (800V, 25A @ 98°C) 1x GPU608 (800V, 6A @ 100°C)
APFC MOSFETs	2x Infineon IPW60R060P7 (650V, 30A @ 100°C, Rds(on): 0.060Ohm)
APFC Boost Diode	2x Jilin Sind 60F60WT (600V, 60A @ 135°C)
Bulk Cap(s)	2x Tokshin Kogyo TK (450V, 680uF each or 1360uF combined, 2000h @ 105°C, LGW)
Main Switchers	2x Infineon IPW60R060P7 (650V, 30A @ 100°C, Rds(on): 0.060Ohm)
APFC  Controller	1x Texas Instruments UCC28063 & 1x Champion CM03X (reduce the no-load consumption)
Resonant Controller	Champion CU6901VAC
MCU	Arery AT32F421F6P7
Driver IC	2x Texas Instruments UCC27524
Topology	Primary side: Interleaved PFC, Half-Bridge & LLC Resonant converter Secondary side: Synchronous Rectification & DC-DC converters
Secondary Side
+12V MOSFETs	12x NCEPower NCEP40T15GU (40V, 106A @ 100°C, Rds(on): 1.35mOhm)
5V & 3.3V	DC-DC Converters: 8x IPS FTG014N04SA PWM Controller(s): Anpec APW7159C
Filtering Capacitors	Electrolytic: 20x Rubycon (4-10,000h @105°C, YXJ) 4x Rubycon (2-10,000 @ 105°C, YXF) 3x Rubycon (6-10,000h @105°C, ZLH) Polymer: 50x FPCAP
Supervisor IC	IN1S3131-SAG
Fan Controller	OnSemi MJE172GA
Fan Model	Cooler Master Mobius 135 FA13525M12LAAB (135mm, 12V, 0.4A, Loop Dynamic Bearing Fan)
5VSB
Standby PWM Controller	On-Bright OB2365S

The small PCB is overloaded with parts, and when there is not enough space between the parts, the fan has to spin faster to remove the heat. CM’s uniquely shaped heatsinks look nice, but I am unsure if they offer the claimed benefits. I prefer a larger PCB with more clearance between parts to allow for better heat management through enhanced airflow. Moreover, because of the lack of space on the main PCB, most filtering capacitors are hosted on the modular PCB, where airflow does not exist. This is why most of them are polymers. Still, you need electrolytic caps on the secondary side for storing energy to keep up with the transient loads, especially in an ATX v3.1 PSU, which will be asked to deliver twice its nominal power. I will wait till the transient tests to see if CM’s design will provide.

The modern design has an interleaved APFC converter and a half-bridge topology. Weirdly, such a powerful PSU doesn’t use a full-bridge topology. On the secondary side, we find the typical: a synchronous rectification scheme for 12V and a pair of DC-DC converters for the minor rails.

The transient filtering stage has all the necessary parts to block incoming and outgoing EMI emissions. Typically, it starts at the AC receptacle and continues on the main PCB.

The NTC thermistor’s resistance is high to restrict inrush currents. A bypass relay supports the NTC thermistor.

The two parallel bridge rectifiers are on the same heatsink. There is another one, probably handling the 5VSB rail, located between the APFC’s transformers.

An interleaved APFC converter is used, where two PFC circuits operate in parallel with a phase difference. This minimizes input and output current ripple and lowers conduction losses, increasing efficiency and doubling the effective switching frequency. The interleaved APFC converter uses two Infineon FETs and two Jilin Sind boost diodes. The bulk caps are by TK and offer a combined capacity of 1360uF. They are rated for 2,000 h at 105 °C.

The APFC controller is a Texas Instruments UCC28063 supported by a Champion CM03X.

The two Infineon IPW60R060P7 primary switching FETs are installed in a half-bridge topology, and an LLC resonant converter is used for higher efficiency. The driver ICs are a pair of Texas Instruments UCC27524.

The resonant controller is a Champion CU6901VAC.

The PSU has an MCU (Arery AT32F421F6P7), which is mainly used for monitoring since analog controllers handle all primary circuits.

The main transformer has a pair of PCBs attached to restrict energy losses during power transfers. We had to destroy one of them to identify all the parts.

Twelve NCEPower NCEP40T15GU FETs regulate the 12V rail. They are installed on a PCB next to the main transformer to minimize energy losses due to power transfers over PCB traces or cables. This is a smart way to increase efficiency, but you must ensure that the 12V FETs have adequate cooling.

Two DC-DC converters generate the minor rails.

Rubycon provides the electrolytic filtering capacitors. FPCAP makes the polymer caps, and there are so many of them in this PSU!

You can find more information about capacitor performance and other specs below:

• Cybenetics Capacitor Database

The supervisor controller is an IN1S3131-SAG.

The standby PWM controller is an On-Bright OB2365S

Many small electrolytic and polymer caps at the face of the modular panel form a ripple-filtering layer.

The soldering quality is good.

The cooling fan is a Mobius 135 FA13525M12LAAB with a loop dynamic bearing. This is a high-quality fan.