Introduction
It seems every major manufacturer has been releasing 1kw+ power supplies recently and while it seems insane that anyone would need such a monster unit to power their system, they are necessary for high end servers, multi-GPU systems and for hard core overclockers.
Today we will take a look at a very powerful PSU from Silverstone, the Decathlon 1200W. Silverstone have taken the core of a slightly older server-oriented Olympia 1200W PSU, and have re-designed it to suit the requirements of hardcore enthusiasts, thus the 1200W Decathlon was born. Silverstone are renowned among for building products to the highest standards, so with that in mind let us see if the 1200W Decathlon can deliver the goods.
Manufacturer features and specifications:
| Model No. |
SST-DA1200 |
| Max. DC Output |
1200W continuous |
Load Range |
| |
+3.3V |
+5V |
+12V |
+5VSB |
-12V |
-5V |
Max.(Amps) |
40A |
40A |
90A |
4A |
0.8A |
/ |
Min.(Amps) |
0.5A |
0.5A |
0.5A |
0A |
0A |
/ |
Range (%) |
+/-5％ |
+/-5％ |
+/-5％ |
+/-5％ |
+/-10％ |
/ |
Line Reg.(%) |
±1% |
±1% |
±1% |
±1% |
±1% |
/ |
Ripple(mVp-p) |
50mV |
50mV |
120mV |
50mV |
120mV |
/ |
combined +3.3, +5V |
250W (max) |
combined +12V |
1080W / 90A |
Input Voltage |
90V ~ 264V (Auto Range) |
Input Frequency Range |
50Hz ~ 60Hz |
PFC |
Active PFC (PF>0.95 at full load) |
Efficiency |
>80%(at 20%~100% Loading) |
MTBF |
100,000 hours at 25°C , full load |
Operating temperature |
0 ~ 50°C |
Protection |
Over current protection, Under voltage protection, Over voltage protection, Short circuit protection, Over power protection, Protection Reset, Over shoot |
Color |
black (lead-free paint) |
Cooling System |
Single 135mm ball bearing fan |
Noise Level |
23 dBA |
Dimension |
150 mm (W) x 85 mm (H) x 230 mm (D) |
Weight |
3.4 kg |
Certification |
SLI |
- 100% modular cables with cable bag
- Powerful single +12V rail with 90A
- 1200W continuous power output rated up to 50℃
- Efficiency greater than 80% at 20%~100% loading
- Japanese primary capacitors
- Dual PCI-E 8pin & Six PCI-E 6pin
- Dual EPS12V 8pin & Six SATA connectors
- Silent running 135mm ball bearing Fan
- Support ATX 12V 2.3 & EPS 12V
Packaging and Bundle
While the artwork on the box is minimal, there is a wealth of data about the units performance and features, as well as many of the components Silverstone used to create the PSU. It is a thick and sturdy cardboard box which makes it secure and Silverstone have packaged everything inside very securely. There is a very well written and detailed manual with a wealth of information about the unit, a bag to store any cables you won’t attach to the unit, two extra 8-pin PCIe cables and a thicker AC power cable.
Network: