Disassembly
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Starting as usual at the input filtering, this power supply has two X-Capacitors (one on the AC receptacle), two coils, four Y-Capacitors (two on the AC receptacle), and an MOV. There are two bridge rectifiers screwed on to a heat sink, both of which are rated for 4A. The PFC section contains two Toshiba 2SK3568 MOSFETs rated at 12A each and a 220µF Capacitor made by OST. Two Toshiba 2SK4012 MOSFETs are used as the switching transistors. They are rated for 13A each. The primary side is controlled by a Champion Micro CM6802 PFC/PWM Controller combo IC.
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The capacitors on the secondary side are all OST RLP series. They are not the worst, but I would like to see Japanese capacitors used here.
The 12V Rail uses two Diodes Inc. SBR30A60CT Rectifiers, the 5V rail uses two SBR30A45CT Rectifiers, and the 3.3V rail uses two PFC Devices PFR30V30CT Rectifiers. All of these parts are schottky rectifiers rated at 30A. Therefore, all of the rails should be capable of up to 60A without burning out the rectifiers. The secondary monitoring IC is a Weltrend WT7510. It supports Over Voltage and Under Voltage protections, but it doesn’t support OCP (Over Current Protection), so like the IP-S400CQ2-0, this is a single rail power supply.
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As I’ve come to expect from In Win, the soldering is very tidy, and the only issues are very minor. There was some flux left on the PCB near where the ground wire from the transformer is soldered down. This won’t cause any problems, though.
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The fan used is exactly the same as the one used in the CQ2-0, which is an ADDA AD1212MS-A70GL. This power supply is more efficient than the CQ2-0, and its heat sinks have more surface to air contact, so it was somewhat quieter at high loads.
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