Cooler Master eXtreme Power Duo 650W Power Supply Review :: eXtreme Power Duo Exterior, Interior, and Wiring

08-09-2006 · Category: Hardware - Power Supplies

By Tulatin

Right-o then, with this supply's features aside; it's good and time to take a brief spin around the perimeter before the inevitable (and symbolic) tacking of the warrantee sticker, and of course, the power supply giving us the full Monty. Lets' start off with a tour of what's to be seen.


Cooler Master eXtreme Power Duo 650W Power Supply Review Power Supply Overview

Power Supply Overview


The bulk of the body of this unit is finished in a smooth, flawless flat black, a coat which extends even across the fan grille atop the power supply, and remains unbroken over the honeycomb mesh at its front. Unfortunately, it seems that the units are sprayed while in partial assembly, so curious eyes will be able to pick off points of SECC primer. The only place where this single flat black finish is broken comes in the Ratings sticker - a basic white and black affair, giving all you'd need to know about the unit's ratings, which is accompanied by a set of ratings and safety stickers beside it. Turning my attention to the rear of the unit, there are a few vents to allow excess air to escape the unit, while the bottom exhibits something rather interesting - four counter sunk holes with no screws, nor a PCB beyond them - essentially, a big, empty space inside the supply where something should go, but clearly doesn't. What was this mystery component? Only Cooler Master is to say. The verbal portion of this tour aside, I'll just toss up the ratings graph in text form, than dispense of the photos.

AC Input 110-115V/220-230V 10A/6.3A 50/60Hz
DC Output +3.3V +5V +12V1 +12V2 -5V/td> -12V +5VSB
MAX Output 28A 30A 18A 18A .8A/td> .8A 2.0A

Cooler Master eXtreme Power Duo 650W Power Supply Review Grille

Grille

Cooler Master eXtreme Power Duo 650W Power Supply Review Front/Top View

Front/Top View

Cooler Master eXtreme Power Duo 650W Power Supply Review Ratings

Ratings

Cooler Master eXtreme Power Duo 650W Power Supply Review Warrantee

Warrantee


Ah yes, that poor warrantee sticker, about to meet its end at the tip of a screwdriver. As that little sticker comes to grips with its new existence, it's good and time to take a peek inside the unit. The first thing that had to be done to get it open was to disconnect the 2 pin 120mm Globe Fan branded… err fan. Once that and the top cover were out of the way, the internals could finally be examined. Tucked away inside this unit, a standard sized PCB sat, with its trail of wiring hanging out, seemingly oblivious to the empty space before it. Atop this PCB, thick capacitors helped to filter the incoming current, while small, wide finned copper heatsinks helped to dissipate the heat generated by the unit's MOSFETS. The problem is, that with such small heatsinks, the power supply may have trouble dissipating the heat produced, especially considering that this product is rated to handle 650W of output, and especially considering how the right hand heatsinks are compressed together, making it so that very little surface is exposed to the air. On the plus side, the beastly + 12V transformer, which is tucked between these heatsinks, is well fed, though it does sit in the fan's dead spot. Apart from this, there's not much else to say about the interior - it's got good build quality, but disturbingly small heatsinks for the rated wattage. With that aside, let's see where all this power flows off to.


Cooler Master eXtreme Power Duo 650W Power Supply Review Fan Sticker

Fan Sticker

Cooler Master eXtreme Power Duo 650W Power Supply Review Main Transformer

Main Transformer

Cooler Master eXtreme Power Duo 650W Power Supply Review Right side

Right side

Cooler Master eXtreme Power Duo 650W Power Supply Review Internal Overview

Internal Overview

Cooler Master eXtreme Power Duo 650W Power Supply Review Small Switching PCB

Small Switching PCB


Finally, we're on to the connectors and the cables therein. Disappointingly, for a supply of this rating, the eXtreme Power Duo only gives you 3 SATA connectors, 6 Perpetual Connectors (on 2 strands, to boot) and 2 Mini-Molexes. Along with this disappointing array of un-sleeved cables, it comes with dual PCI-Express power leads, a single 4 Pin P4 Lead (as opposed to the seemingly standard 8 pin EPS 12V lead), and finally a 20+4 ATX connector that spends more time falling apart than anything else when you're trying to plug the damn thing in. Perhaps the most aggravating thing about this bunch, though, is the fact that they're all un-sleeved, leaving a lovely mess inside your case. On the plus side of things, though, these connectors are nice and easy to plug in, and the strands have just the right spacing to make life workable in the average system, though the wire gauge could be a little heavier.


Cooler Master eXtreme Power Duo 650W Power Supply Review ATX 20+4 Pin

ATX 20+4 Pin

Cooler Master eXtreme Power Duo 650W Power Supply Review P4 Lead

P4 Lead

Cooler Master eXtreme Power Duo 650W Power Supply Review PCI-Express Leads

PCI-Express Leads

Cooler Master eXtreme Power Duo 650W Power Supply Review Serial ATA Leads

Serial ATA Leads

Cooler Master eXtreme Power Duo 650W Power Supply Review Perpetual Leads

Perpetual Leads


Leads aside, it's about time this power supply got put through the ringer - onto the testing!