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Gigabyte Odin Pro GE-MK20A-D1 (1200W)

Gigabyte has taken part in my earlier PSU tests and the last time this brand was represented by an interesting model that could report detailed data about the current power consumption. Today’s model is more trivial but has a wattage rating of 1200W.

The PSU comes in a pretty box that has a carry handle.

Exterior Design

The PSU is rather large at over 200 millimeters of length and is painted matte black. The only embellishments are the On/Off button with red highlighting and the protruding letters “Gigabyte” on the side panel.

The PSU is modular. Some of its cables are detachable. You can connect them to the connectors on the back panel that differ in size, position of the key and color.

The mainboard power cable has a rubber knob that does not help in any way, especially if there are tall components near the mainboard’s power connector.

The PSU is equipped with the following cables:

  • Mainboard cable with a 24-pin connector (46cm)
  • CPU cable with a 4+4-pin connector (54cm)
  • CPU cable with an 8-pin connector (54cm)
  • Six connectors for graphics card power cables
  • Four connectors for peripheral power cables

Included with the PSU are:

  • Six graphics card cables with one 6+2-pin connector on each (50cm)
  • Two cables with four Molex connectors and one floppy-drive plug on each (50+15+15+15+15cm)
  • Two cables with five SATA power cables (50+15+15+15+15cm)

I guess there are enough connectors here but the ten available SATA power plugs might be split into three cables with three or four connectors on each, which would be handier in most cases.

Interior Design

The interior of the Odin Pro looks familiar: it is the dual power supply from Channel Well, similar to the above-discussed Corsair CMPSU-1000HX. Corsair’s model had two 500W sub-PSUs whereas the Odin Pro has two 600W sub-PSUs. For more details about this design you can refer to the description of the CMPSU-1000HX above or to our special review dedicated to such monsters.


The specifications are standard for this series of Channel Well power supplies. Formally, the PSU can yield its full output power via the +12V rail, but the load must be ideally halved between its two sub-PSUs for that. Anyway, a 1200W power supply is going to have a large reserve of wattage in any computer.

I should also note that the words “Design by GIGABYTE in Taiwan” look somewhat odd on a label of a typical PSU developed and manufactured by Channel Well and selling under half a dozen brands.

UPS Compatibility

Together with an APC SmartUPS SC 620 this power supply worked at loads up to 350W when powered by both the mains and the batteries, but the UPS was not very stable. You should choose an UPS with a large reserve of wattage or, better yet, with sinusoidal output voltage for this power supply.

Output Voltage Stability

The +12V voltage is ideal, fitting within a 1% deflection from the nominal value. The +5V is just a little worse and the +3.3V does not exceed the allowable limits, either.

Output Voltage Ripple

The output voltage ripple is within the permissible limits at full load.


The PSU is cooled by a 5-blade 140x140x25mm fan (Yate Loon D14BH-12).

The fan speed remains constant until a load of 500W. The PSU is average in terms of noisiness then. It won’t satisfy a lover of silence but most users are going to find it acceptable. Then, the speed grows up along with the load, making the PSU noisy at 800W.

The Odin Pro is better than the above-discussed 1200W Cooler Master in noisiness. If compared with the Corsair CMPSU-1000HX, the Odin Pro is somewhat louder at low loads, but the Corsair’s fan begins to accelerate sooner as the load is growing up.

Efficiency and Power Factor

The PSU is 88% efficient at the maximum but drops to 83% under higher loads. This drop is smaller than with the Corsair power supply.

Standby Source

The standby source is rated for a current up to 3.5A and indeed copes with that load. Its minimum output voltage is 4.8V, the allowable minimum being 4.75V.


The Gigabyte Odin Pro GE-MK20A-D1 is not a poor power supply, of course. Its high wattage, good electric parameters and acceptable noisiness make it a good choice for a powerful gaming computer. The only fault I can actually find with the Odin Pro is that it lacks a special feature that would make it different from its opponents, especially those many other PSUs based on the same platform from Channel Well.

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