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Corsair TX750W Power Supply Review

Manufacturer: Corsair Components
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A Detailed Look

The Corsair TX750W power supply claims to support the latest ATX12V v2.2 standard and is rated for a combined, continuous output power of up to 750 watts at 50°C operating temperature.  That’s important as some less reputable manufactures limit their power supply’s advertised capacity by specifying a lower operating temperature (25°C) in the fine print.  The PSU includes universal AC line input (automatically adjusts the AC line voltage) and active PFC, which makes the unit more environmentally friendly to the local power grid.


The TX750W PSU provides a dedicated, single +12V output.  This is a trend we are seeing in newer power supplies.  Some manufacturers are no longer creating multiple +12V outputs by implementing current limiting circuits into their design to conform to the 240 VA maximum guidelines – no single output should exceed 240 VA (12V x 20A = 240 VA).  Having multiple current limited +12V outputs can lead to power distribution problems, particularly with some power-hungry video cards.  Delivering a single +12V output is a better approach IMHO.

Specifications (courtesy of Corsair Memory)


The Corsair TX750W power supply enclosure is painted matte black with an orange logo and is 160mm (6.3”) deep.  It uses a single 140mm fan on the bottom for cooling, which is the largest standard fan size that will fit in the ATX form factor enclosure.  The fan speed is automatically controlled by the internal component temperature (speeds up as the combined load and temperature increases).  The dual ball bearing Yate Loon Electronics fan (D14BH-12) is rated for up to 140.0 CFM at 2,800 rpm and 48.5 dBA at 12V.  This is a relatively powerful fan and should provide excellent airflow but will hardly be ultra-quiet at higher speeds.


A clear plastic baffle is attached to the top side of the fan, which forces airflow to the front of the power supply where it then flows across all the internal components before exiting out the back for better cooling.


The open honeycomb grill on the back allows the exhaust air to exit the power supply with minimal resistance.

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