Diablotek PHD650 650W Power Supply Review

Author:Paul Johnson

Editor:Kyle Bennett

Date: Friday , December 17, 2010

There is no better mix than the Devil and technology, but that aside, how the devil does that work out for power supplies? We aim to find out and as we all know, when it comes to PSUs, the devil is in the details. Surely this PSU is straight from Hell.


The first thing we are going to look at with the Diablotek PHD650 650W is its packaging, accessories, and documentation. While normally none of these items is a make or break item for a power supply the packaging quite often contains a lot of information about the product we are purchasing. The inclusion of an owner’s manual that provides actual information about our product is also of great help. Accessories are almost unnecessary with a power supply as the unit is self contained, unless it is modular, but there are cases where a manufacturer can include useful accessories to make installation, routing, and use more efficient.

The packaging for the Diablotek PHD650 is not that devilish, instead it is a black base adorned with the same picture of the PHD650 three times, and some sort of head that looks like it came from a T1000. Other than that, the packaging for this unit screams cheap. Why you might ask? Well what do we see on the packaging otherwise, the power label which is a bit of a Rubik's cube (reproduced below) and the connector count. There is also the advertisement that this is the second generation (of what who knows) and that the unit has a three year warranty. Three years is on the shorter end of what we would like to see, and Diablotek is a complete unknown at this point so the quality of that support over the next three years is a big unknown. With nothing else here let's move on and look at those figures.

Judging solely by the power label presented by the Diablotek PHD650, we are in for quite the experience today as we try and guess our way through what is real and what is not. First up on the list, this unit is advertised as having two 12v rails, it doesn't. There is no OCP in the supervisor chip so the unit is a single 12v rail unit. Second, we don't get what the 12v maximum capacity is for the unit only that each 12v "rail" is capable of supporting 23A. Typically, these values are not additive so it is unlikely that this unit's actual single 12v rail is capable of producing 46A, or ~85% of the unit's capacity. Even if it is able to do that, for a modern unit that is a rather low 12v capacity. We also find that the unit does not provide us with a combined 5v/3.3v capacity, so that is another great question mark. Along with all of our mystery power today, we find the PHD650 comes equipped with four PCI-Express connectors (two 6-pin and two modified 8-pin), which seems a bit out-sized given the vibe we are getting from this unit so far, and a total of twelve peripheral connectors (six Molex and six SATA). However, if this unit proves to be a high quality 650W unit then this arrangement is very comparable to units on the market and overall well appointed.

Like the recently reviewed Cooler Master GX 650W, the Diablotek PHD650 packaging features the bare minimum of bare minimums. There is the unit, power cord, mounting screws (loose in the box) and a "manual". The manual for the Diablotek PHD650 also follows along with what we saw from the Cooler Master GX 650W as it includes a single sheet of paper folded into quarters. Contained on this piece of paper are some simple installation instruction, a limited pinout table in a number of languages, and a blurb about the warranty. The only thing we learn here is that the warranty advertised on the packaging only applies if you register the product within 30 days on Diablotek's website. Somehow, I feel that a lot of users may miss this key point. This is just a total wreck and would be a waste of space instead of just a giant waste of space if the manual didn't tell us that key detail about the warranty. Let’s move on now and see if things get any better. Bleh.