Reviews - Seasonic M12 700W
Sample Provided by: (By jonny on Sat, Oct-07-2006)

Page 1 -

Today I'm looking at the Seasonic M12 700W. This power supply is Seasonic's newest unit, features a 120MM fan on the bottom, a 60MM fan on the front (inside) and is modular.

Now I know what you're thinking because I keep hearing this around at the different forums: "Why a 60MM fan? It's only going to add noise to the unit." Well, the 60MM fan only operates when the unit is warm, and the speed is variable, so even spinning at low speeds, it's hardly audible.

When the industry changed typical PSU cooling from front-to-back to bottom-and-"around the bend" a hot spot was created at the front of the PSU housing. For many PSU manufacturers, the solution was to add an acetate shiled across the back half of the fan, forcing air to move towards the back. But even this shield can add noise, and cooling over all can be affected.

Seasonic includes a thank you note in the box. I must say that's a first.

Inside the box we see the power supply, a power cord, the modular cables (under the power cord) and a stack of literature including an S-12 brochure, M-12 brochure, M-12 manual and a warranty card.

The unit is "basic black" and the cables are all sleeved with black net. I hear that black is today's titanium. The fan grills are chrome. Nothing too flashy here, but at least all of the cables are sleeved.

Here we have a pretty good look at the 60MM fan and the modular interface.

There are five 5-pin modular connectors here. Each connector has one 12V, one 5V, one 3.3V and two grounds. The main ATX, the 8-pin EPS12V and the 4-pin ATX12V connectors are all fixed. You can almost see the two PCI-e connectors underneath the fixed cables. These provide three 12V leads and three grounds each.

Here we see the fxed ATX, 8-pin and 4-pin cables. As we can see, the sleeving is very nice. I would have sleeved them to the ends, but this is still a very nice sleeving job.

Now let's do a cable count...

Type of connector: Seasonic M12 700W
ATX connector 20+4
2 x 2 12V connectors 1
2 x 3 PCIe 4
8-pin Xeon/EPS connector 1
6-pin Xeon/AUX connector 0
5.25" Drive connectors 10
3.5" Drive connectors 2*
SATA Drive power connectors 8
Fan only connectors (thermostatically controlled 12V only) 2
* 3.5" connectors are achieved by using an adapter on a 5.25" peripheral connector.

Seasonic certainly provides enough connectors with the M12 and the only adapter or splitter that's required is one that split a 5.25" peripheral connector into two 3.5" floppy-type connectors (below.)

By popular demand, below is a shot of all of the cables that came with my M12 700W. The pair of cables that are un-tied in the photo are a couple of the two-Molex connector cables.

Each PCI-e cable has two PCI-e connectors. I actually wished that Seasonic included two types of cables for each PCI-e port, one with one connector and one with two (as shown.) Instead, only two cables with two connectors each are included, so if you only have one PCI-e card that requires on PCI-e connector, you're left with having to hide the second.

Below is a look at the label...

Seasonic M12 700W
+3.3V +5V +12V1 +12V2 +12V3
+12V4 -12V +5VSB
24A 30A 18A 18A 18A
18A 0.8A 3A
Max Combined Watts 170W 672W 9.6W 15W
700W


 

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