Corsair Professional Series HX1050 Review 11

Corsair Professional Series HX1050 Review

Packaging, Contents & Exterior »


Corsair HX1050 Features & Specs
Max. DC Output1050W
Efficiency80 Plus Silver
Operating temperature10°C - 50°C
ProtectionsOver Voltage Protection
Under Voltage Protection
Over Current Protection
Over Power Protection
Short Circuit Protection
Cooling140 mm Fan (Yate Loon D14BH-12)
Dimensions150 mm (W) x 86 mm (H) x 180 mm (D)
Weight2.6 kg
ComplianceATX12V v2.2, EPS 2.91
Warranty7 years
Price at time of review $229.99

In the user's manual it states that the HX1050 is compatible with ATX 2.31 and EPS 2.92 standards but in the product's web page it writes that it is compatible with ATX 2.2 and EPS 2.91. The web page tells the truth, since the ATX 2.31 standard requires at least two +12V rails and the HX1050 is single rail.

The price is $50 lower than the AX1200, to tell you the truth we expected a lower price. Actually it is the most expensive >1000W Silver efficiency PSU. Even the overpriced Enermax REVOLUTION85+ ERV1020EWT costs $209.99 on Newegg. Hopefully, for Corsair, the performance of HX1050 will justify its high price.

Corsair HX1050 Power Specs
Max. Power30A30A87.5A3.5A0.8A
Total Max. Power1050W @ 50°C

There is only one, powerful, +12V rail which is able to deliver up to 87.5A. Due to the DC-DC converters used for the minor rails generation the PSU is able to output its max power to the +12V rail alone. This is very convenient since modern systems draw power mainly from this rail. Finally Corsair states that the max power of 1050W is attainable at 50°C ambient.

Cables & Connectors, Power Distribution

Native Cables
ATX connector (600 mm)20+4 pin
4+4 pin EPS12V/ATX12V (600 mm)1
6+2 pin PCIe (600 mm)2
Modular Cables
6+2 pin PCIe (600 mm)4
4+4 pin EPS12V/ATX12V (600 mm)1
4 pin Molex (400 mm+150 mm+150 mm+150 mm)12
SATA (400 mm+150 mm+150 mm+150 mm)12
FDD (+100 mm)2

There many connectors available, even for the 1050W of the unit. Our only objection is that the six PCIe connectors cannot be used at the same time with the two EPS ones. This is because on the modular panel there are four connectors to which you can connect either the PCIe cables or the modular EPS, so if you occupy all of them with PCIe cables then the modular EPS connector will be left out.

All cables are long enough and the distance between connectors is the right one, according to ATX spec. Finally, the 20+4 pin ATX cable uses thicker 16 AWG wires while all other cables use 18 AWG. We would prefer PCIe and EPS cables to use 16 AWG wires.

Since this PSU features a single +12V rail we do not have anything to comment about its power distribution.
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