GlacialPower is not one of the biggest players in the power supply market, and so we have one big question: do they manufacture decent products or are they just another manufacturer you should avoid? Today we are going to make a complete test on their latest 650 W model, GP-AL650AA, to see if it can really deliver 650 W, the quality of its outputs and its efficiency. Check it out.

GP-AL650AA has a very simple looks, being only 5 1/2” (140 mm) deep, as you can see on Figures 1 and 2. It features a 120 mm fan on its bottom, active PFC and no modular cabling system. No special attention was given to the aesthetic side, as only the main motherboard cable has a nylon sleeving coming from inside the unit.

GlacialPower GP-AL650AA power supplyFigure 1: GlacialPower GP-AL650AA power supply.

GlacialPower GP-AL650AA power supplyFigure 2: GlacialPower GP-AL650AA power supply.

This unit has an interesting feature: its fan keeps spinning after you turn the unit off, to cool it down.

The main motherboard cable uses a 20/24-pin connector and this unit comes with two ATX12V connectors that together form an EPS12V connector.

This power supply comes with six peripheral cables: Two cables with a 6/8-pin video card auxiliary power connector each,  two cables with six SATA power plugs each, one cable with three standard peripheral power plugs and one cable with three standard peripheral power plugs and one floppy disk drive power plug.

We think the number of connectors is satisfactory for the average user.

All wires are 18 AWG, which is the correct gauge to be used nowadays.

This power supply is manufactured by CWT with a design created by GlacialPower.

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


Gabriel Torres is a Brazilian best-selling ICT expert, with 24 books published. He started his online career in 1996, when he launched Clube do Hardware, which is one of the oldest and largest websites about technology in Brazil. He created Hardware Secrets in 1999 to expand his knowledge outside his home country.