Corsair HX1050 1050W PSU review
Corsair entrusted the cooling of their HX1050 unit to a 140mm fan made by Yate Loon, the same fan found cooling most of their high end models. The fan’s model number is D14BH-12 and it is a ball bearing fan with a maximum rotational speed of 2800RPM.
The OEM of the HX1050 power supply is CWT (Channel Well Technology), the same company who made the HX1000 which this unit is replacing. The base design of the HX1050 is entirely different than the one of the older HX1000, which essentially was two 500W units working in parallel inside the same casing. The HX1050 is a single, “true” 1050W power supply.
The filtering stage of the HX1050 is very good, consisting of four Y-type capacitors, two X-type capacitors, two ferrite coils and a surge suppressing MOV.
The two primary capacitors are extremely high quality Panasonic capacitors, rated 470μF/450V at 105C. Nippon Chemi-Con supplied all of the secondary capacitors.
The primary rectifiers are installed on their own dedicated and sizeable heatsink. The rest of the heatsinks found in this power supply appear to be unusually small, even considering the high electrical efficiency of the power supply.
This power supply generates and regulates only a single 12V line. The low voltage 3.3V and 5V rails are derived from DC to DC conversion modules.