Seventeam ST-1200E-AF Power Supply

It is said that big things come in small packages. Well, as we’re about to find out today, big things also come in big packages. Today’s review has us taking an up close and personal look at the Seventeam ST-1200E-AF power supply.

SUPPLIED BY: Seventeam
PRODUCT: Seventeam ST-1200E-AF 1200W
PROD LINK: Seventeam’s current offerings.
PRICE: $370.00 ish
Price is at time of testing!

Seventeam is a name one doesn’t hear often in these parts of the world, and the common reaction in the tech community to an unknown PSU manufacturer is usually, “It’s the devil! Kill it! Or it’ll kill your computer!” But, once in a while these unknown OEM’s turn out to be renowned for decent products in the parts of the world they are commonly used. Seventeam is one such name. And, they’re looking to make a name for themselves in North America too. They’re off to a good start, supplying several units including this very platform to the likes of Silverstone.

Seventeam ST-1200E-AF

Thundering! While the unit we are reviewing boasts this admittedly anti-silent moniker, I can’t help but admit that it does sound like this thing means business. The box for our sample looks a bit beat up thanks to some shipping oversights, but is otherwise finished in a simple matte black. And it’s a big box too – you could almost sleep in it.

Seventeam ST-1200E-AF

Taking a look at the right side of the box, we see a table with several models listed from 850W to the 1200W model we received. Several agency approval logos are also present. Thundering!

Seventeam ST-1200E-AF

Gnirednuht! The top of the box contains all sorts of fancy graphics as well as a picture of the heavy duty power switch and beefed up AC receptacle of the unit within. And yet, the box isn’t too cluttered looking.

Seventeam ST-1200E-AF

Popping the box open, we find that the PSU itself is enclosed in a plastic bag and protected by two foam pieces to keep it from harmful vibrations. It looked to me that fully a third of the box was taken up by cabling, which included the scary huge AC power cable above. That funny looking connector is a NEMA 6-15, designed for 15A at 250V. However, this 14 gauge cable terminates in a normal NEMA 5-15 plug, which is compatible with all our outlets without having to call up the electrician and saying, “Halp! I needz moar wattz!”

Seventeam ST-1200E-AF

The PSU itself now unpacked, we can see the NEMA 6-15 receptacle itself. These are much bigger than what you’d normally find on a PSU, and this one dwarfs what is in reality a pretty good size power switch. Now that I can see the label, here’s a table. And then a fable, read by Mabel wearing sable wielding a ladle on cable. Ok, I’ll stop now. I have a cold, so some insanity tends to leak out once in a while and I only have so many Kleenexes.

Seventeam ST-1200E-AF – DC Output
DC Output +3.3V +5V +12V1 +12V2 +12V3 +12V4 -12V -5V +5VSB
40A 40A 20A 20A 20A 30A 0.8A N/A 4A
Max Combined Watts 250W 1080W 9.6W N/A 20W

Seventeam ST-1200E-AF

Heavens to Betsy! Look at the length on some of those cables! Stretched out, I was able to make one reach from the table to approximately halfway to the moon. But, just in case my eyes or my nasal spray were playing tricks on me, I broke out the measuring tape.

Seventeam ST-1200E-AF – Cabling
Type of connector: +12V Rail Dist.
ATX connector (570mm) 24 pin +12V3
2 x 4 PCI-e (590mm) 4* +12V3 x 2
+12V4 x 2
2 x 3 PCI-e (590mm) 4* +12V3 x 2
+12V4 x 2
8-pin Xeon/EPS connector (590mm) 2 +12V1
2 x 2 12V connectors (+150mm) 1 +12V1
6-pin Xeon/AUX connector 0 N/A
5.25″ Drive connectors (590mm + 140mm +140mm) 6 +12V4
3.5″ Drive connectors (+140mm) 2 +12V4
SATA Drive power connectors (605mm + 240mm + 240mm) 6 +12V4
Fan only connectors (thermostatically controlled 12V only) 0 N/A
*PCI-e connectors are modular 6+2 pin type

Because Seventeam doesn’t indicate anywhere which of the four 12V rails go where, I skipped ahead a bit and determined from the autopsy phase which set of wires went where and did what, and put this information into the above table.

I’m sure you’re all as impatient as I am to go on to the next page and see how the unit plays with the load tester, so I’ll delay you no longer.