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Corsair are using one of their 140mm NR140HP fans in this unit, rated 12V 0.33A. This is a fluid dynamic bearing (FDB) fan. Cybenetics gave this unit an A+ Noise classification for 230V operation, and slightly lower for 115V operation (‘A' rating). We test all our power supplies at 230V. Corsair previously used NR140P (no ‘H') fans in units such as the HX1500i (non-Shift), a slightly older fan that operates at 0.22A. For the most part however, they seem very closely matched from what we can tell in testing.
This is another Corsair design in partnership with OEM Great Wall. The last unit we tested a short while ago (HX1500i Shift) was a Channel Well Technology OEM part. The primary side of this unit is full bridge topology. On the secondary side is synchronous rectification used for 12V with a pair of DC to DC converters generating the minor rails.
Build quality and soldering on the main PCB is great. Component selection is also noteworthy – there are no shortcomings on component selection. Primary capacitors are 105c rated Japanese, from Nichicon 390uF 420V and Rubycon 420V 470uF for a total of 860uF.
The power supply offers OVP, OCP, SCP, OPP and OTP protections.
