Seasonic FOCUS PLUS Gold 650W Power Supply Review

The Seasonic FOCUS PLUS GOLD series has been nothing but a crowd pleaser. The 650 watt market is however jam packed with lots of competition when it comes to building PSUs. However when it comes to the high end of "Gold" mainstream market power supplies, Seasonic has shown its mid-efficiency PSUs are the competition to be feared.

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Overview

The first thing we are going to look at with the FOCUS PLUS Gold 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.

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The packaging of the FOCUS PLUS Gold 650W looks just like what we have seen from all of the previous FOCUS PLUS units we have reviewed. In fact, save for the color difference that identifies this as a FOCUS PLUS Gold unit, this packaging could pass for any of the other FOCUS PLUS units we have seen (it is essentially the same as the packaging we saw with the FOCUS PLUS Gold 850W). Once more then, the packaging is bold and striking with its presentation. The front of the packaging features a large black triangle and then a burst of gold that fades across the packaging in multiple directions. Now, besides this, on the front of the packaging we see very little besides an 80 Plus seal. A quick check of the 80 Plus website shows that this unit is indeed certified for 80 Plus Gold levels of efficiency (how it actually performs is something we will see shortly). When we flip to the rear of the packaging, we find a bunch of advertising about today's unit including voltage regulation, efficiency, topology, fan design, etc that we have seen on other FOCUS PLUS units. We also find the warranty listed here and it looks the FOCUS PLUS Gold 650W is covered by a 10 year warranty as was the case with the most recent FOCUS PLUS units we have seen. This is a particularly long warranty given that these FOCUS PLUS units are not flagship products. Moving on to the sides of the packaging, we find the power label (reproduced below), the connector count (reproduced below), and finally a picture of the unit.

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The FOCUS PLUS Gold 650W is advertised as being a single 12v rail power supply similar to what we have seen from previous FOCUS PLUS units. Today's FOCUS PLUS Gold 650W's 12v rail has a capacity of up to 54A (or ~99% of the unit's capacity) if necessary. The minor rails (5v and 3.3v) each have a capacity of 20A and the combined capacity of those two rails is 100W (which has been the case on previous FOCUS PLUS units). Combined with these outputs, we find that this unit has 4 PCIe connectors, 8 SATA connectors, and 3 Molex connectors. From a connectivity standpoint, this unit is about on par with what we would expect from mid-range power supply with a capacity of 650W.

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Once we open the FOCUS PLUS Gold 650W packaging, we are left looking at the power supply itself, a power cord, some screws, the modular cables in a pouch, some zip-ties, some Velcro straps, and the user manual. The user manual is 12 pages long in 12 languages much like what we saw with the previous FOCUS PLUS units we have reviewed. Once more, all we find in this are the installation instructions and a tiny troubleshooting section. That is just not good documentation, but that is the way things have been with these units to date. Let's move on to look at the unit itself now.