Reviews - Antec Signature 650W
Sample Provided by: Antec (By OklahomaWolf on Mon, Oct-20-2008)

Page 1 -

Ever since I reviewed a new power supply from Antec called the Signature 850W, I've been seeing people here and there on the message boards wondering if the 650W little brother to that unit was not only just as good, but worth the money as well. Today, I intend to answer those questions, for Antec has seen fit to send a sample my way.

You may recall that the SG-850 received the first 10 out of 10 rating I've ever given out for performance, and I have a confession to make: after that product's very impressive showing, I installed it into my main computer where it is now running as I type this, displacing a very impressive in its own right 1200W unit. Not just any unit can make that claim, and you better believe that I want to see how the 650W version performs just as much as you all do. Let's get things rolling with a few box shots.

Once again, our first look at a Signature unit shows us a very fancy box with a paper sleeve over it. The packaging is pretty much identical to the 850W model, with the exception of black instead of yellow highlights, so I'll forgo the usual ritual of showing every single facet of the box this time. I hope you'll forgive me for wanting to fast track this review right into the load testing. I just want to see if it will run up another 10.

Woohoo! Another test report to show us just what the unit within the box was capable of when it left the factory. Pass, pass, pass... everything from the 80 Plus bronze testing to 90V AC input at full load to overcurrent protection. My load testing shouldn't faze this unit at all. Not that I expect it to fail after the way the 850W acquitted itself, laughing at every attempt I made to bring it down. I think it's still laughing now, actually.

Ah... there's that Signature goodness I was looking for, right beneath the test report. Unpacking time!

As was the story with the 850W, we get a test report, owner's manual, hefty power cord, black case screws, and a bundle of modular cables.

The owner's manual turned out to be pretty much the same as the one I got with the 850W. A few installation instructions, a few bragging points, and a rudimentary load table rounds it out.

As was the case with the SG-850, the warranty sticker is about the size of a bus, with white lettering that really stands out. I don't care for that... it takes attention away from that gorgeous matte black finish and gold colored Antec badge. Surely they can find something less obvious to use as a warranty sticker. Not that it matters to me - that sticker won't be... sticking... around much longer. It's blockin' a screw to get into the unit, crampin' my style, and makin' me use unnecessary apostrophes.

Another angle shows the big intake grille on the front of the unit, as well as the three modular cable connectors. Just like big brother, this unit features some hardwired and some modular cables. I'll get into those a bit more later.

Antec SG-650 +3.3V +5V +12V1 +12V2 +12V3 -12V +5VSB
24A 24A 22A 22A 25A 0.5A 3A
Max Power 140W 516W 6W 15W

It would seem that our total 12V output is limited to 43A on this model. You'll recall that it was 65A for the 850W version. The biggest difference between the two is the loss of the fourth 12V rail... it's like Antec had Delta take an axe and just chop off that pesky extra 25A 12V rail.

As mentioned, there is a lot of cabling hardwired to this unit. This includes both an ATX12V and an EPS12V connector, one PCI-E 6+2 pin connector, three hard drive Molexes, and three SATA connectors.

The modular cables aren't lacking in connectors either, unless you count the PCI-E connectors, of which there is only a single 6 pin type that shares the same 12V rail as the hardwired 6+2 pin (12V3). So, while you can wire up as many as twelve hard drives at a whack, you can only run one high power video card or two lower power cards. That might actually be a good thing... you wouldn't get too far running two of the biggest power hog video cards on a unit of this capacity. Better to go for the 850W version if you want to do that.

Type of connector: Antec SG-650
ATX connector (550mm) 20+4 pin 12V1
5.25" Drive connectors (550mm+150mm+150mm) 3
3.5" Drive connectors (+150mm) 1
SATA (550mm+150mm+150mm) 3
8-pin Xeon/EPS connector (560mm) 1 12V2
2 x 2 ATX12V connectors (550mm) 1
2 x 4 PCIe (550mm) 1* 12V3

Modular Cables

5.25" Drive connectors (550mm+150mm+150mm) 6 12V1
SATA (560mm+150mm+150mm) 6
2 x 3 PCIe (550mm) 1 12V3

Unit Dimensions(L x W x H)

180mm x 150mm x 86mm

*connector is 6+2 pin modular type



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