Cooler Master G750M Semi-Modular Power Supply Review

/ 4 years ago

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Introduction & Packaging


Cooler Master is one of the most recognisable brands in the PC component market. They’ve got a huge range of massively successful products, ranging from the CM Storm peripherals to their widely popular chassis and, of course, their power supplies. Cooler Master have created some stunning high-end PSU products over the years, but today we’ll be looking at something a little more modest. Their new G750M is a semi-modular design and comes with a pretty basic and what I would like to call beginner friendly configuration. This isn’t really going to be used for multi-GPU gaming systems, but should still offer plenty of grunt for single GPU gaming systems or desktop/office computers. It’s also modestly priced, offering a competitive and trusted brand name for those that need a good level of power and efficiency, without spending mega-bucks for it.

All the usual protection features are present, including the ever so important OVP and OPP. There’s a full-range input voltage, standard ATX form factor and it’ll output up to 750W, so it’s certainly got a broad appeal for a wide range of systems.


The box is pretty standard, with a nice image of the PSU on the front, as well as a quick run-down of the major features. The most important things there are 80 Plus Bronze efficiency, the single 12V rail and the 5-year warranty.IMG_1565

Around the back a little bit of technical information, but since we’re here to test this unit, we’ll be providing you with our own figures.


In the box, you’ll find a user’s manual, four mounting screws and the mains power cable.


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One Response to “Cooler Master G750M Semi-Modular Power Supply Review”
  1. Mark Warburton says:

    I have bought one of these. It has terrible noise (microphone buzzing) and when the PC is off (by issuing the shutdown command from Windows), it draws 50W. When the switch on the PSU is switched to the off position, it still draws 20W! It has terrible quiescent power drain – the worst I have come across. This means that in its “off” state, it is drawing 430kWh a year = $100 where I live.

    It is not an earthing issue – we recently had our earth spike refreshed and the earthing in the whole house tested by an electrician. I know that the G750M is to blame for the noise because my previous 500W PSU (I needed to upgrade due to graphics card upgrade) gave no noise at all on the Mic. Just for kicks, I reinstalled the 500W PSU and confirmed that Mic noise was gone. Stick back the G750M and the Mic noise (high pitched whine) was back with a vengeance.

    Not recommended.

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