GX is the new mainstream power supply series from Cooler Master that is arriving on the market today, so far featuring 550 W, 650 W and 750 W models. Let’s see if the 750 W model is a good buy.

GX series is manufactured by Seventeam. Keep in mind that Cooler Master uses several different vendors, so not all power supplies from them are manufactured by Seventeam.

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Figure 1: Cooler Master GX 750 W power supply.

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Figure 2: Cooler Master GX 750 W power supply.

Cooler Master GX 750 W is very short, especially for a 750 W product, being only 5 ½” (140 mm) deep, using a 120 mm fan on its bottom and active PFC circuit, of course.

Being a mainstream product, the reviewed power supply doesn’t have a modular cabling system. All cables have nylon sleevings, that come from inside the power supply housing.

The cables included are:

• Main motherboard cable with a 20/24-pin connector, 19 ¼” (49 cm) long.
• One cable with two ATX12V connectors that together form one EPS12V connector, 24” (61 cm) long.
• Four cables with one six/eight-pin connector for video cards each, 20” (51 cm) long.
• Two cables with four SATA power connectors each, 17 ¾” (45 cm) to the first connector, 4 ¼” (11 cm) between connectors.
• One cable with one SATA power connector, three standard peripheral connectors and one floppy disk drive power connector, 17 ¾” (45 cm) to the first connector, 5 7/8” (15 cm) between connectors.

This configuration is very good for a 750 W product, providing four connectors for video cards, allowing you to connect two video cards that require two power connectors each.

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Figure 3: Cables.

All cables use 18 AWG wires, which is the minimum recommended, but the main motherboard cable uses thicker 16 AWG wires for the +3.3 V output (orange wires), which is great.

Now let’s take an in-depth look inside this power supply.