Introduction

If we were to pick one of the fastest growing companies of the last decade, we would probably pick SilverStone. The company was founded in spring 2003, despite that, only two years later sales were strong and they had earned a great reputation among enthusiasts.

Today SilverStone are one of the major computer PSU and chassis manufacturers and they have a very diverse product line-up which also include coolers, audio amplifiers and computer accessories. They remain focused on computer cases and power supplies however and have a great variety of products in both categories. Not long ago we reviewed one of their premium 1200W units, the Decathlon DA1200, and today we are going to review another 1200W unit from SilverStone, the Zeus ZM1200M.

It is logical to wonder why SilverStone have two 1200W units of similar specification in their line-up, but actually they don’t really produce two different 1200W units; they currently produce four! If you want high end units then look no further.

The Zeus ZM1200M is the pinnacle of what SilverStone currently has to offer. SilverStone markets the Zeus as a workstation unit, something quite strange for a fully modular PSU, but with four 1200W units among their ranks it is understandable that SilverStone is trying to categorize them.

The Zeus ZM1200M is not a revamped version of the Decathlon DA1200 unit; it’s an entirely different design down to the core. It is also one of the very few PSUs which have six 12V lines, but it also has the ability to merge all six lines into one, manually.

Manufacturer Features and Specifications

• Class-leading six or single +12V rail(s) with 95A
• Adjustable switch for six or single +12V rail(s) operation
• 1200W continuous power output rated up to 50°C
• 100% modular cables with cable bag
• Low ripple & noise with ±1% voltage regulation
• Efficiency greater than 80%
• Japanese Capacitors
• Dual PCI-E 8pin, six PCI-E 6pin, and six SATA connectors
• Support ATX 12V 2.3 & EPS 12V

Model No. SST-ZM1200M
Max. DC Output 1200W

	+3.3V	+5V	+12V1	+12V2	+12V3
Max.(Amps)	28A	30A	17A	17A	17A
Peak (Amps)	/	/	/	/	/
Min.(Amps)	0A	1.0A	0.8A	0.8A	0.8A
Range (%)	±1%	±1%	±1%	±1%	±1%
Ripple(mVp-p)	50mV	50mV	120mV	120mV	120mV

	+12V4	+12V5	+12V6	+5VSB	-12V	-5V
Max.(Amps)	17A	17A	17A	4.0A	0.5A	/
Peak (Amps)	/	/	/	/	/	/
Min.(Amps)	0.8A	0.8A	0.8A	0.1A	0A	/
Range (%)	±1%	±1%	±1%	±5%	±5%	/
Ripple(mVp-p)	120mV	120mV	120mV	50mV	120mV	/

Load Range
	+3.3V	+5V	+12V	+5VSB	-12V	-5V
Max.(Amps)	28A	30A	95A	4.0A	0.5A	/
Peak (Amps)	/	/	/	/	/	/
Min.(Amps)	0A	1.0A	3.0A	0.1A	0A	/
Range (%)	±1%	±1%	±1%	±5%	±5%	/
Ripple(mVp-p)	50mV	50mV	120mV	50mV	120mV	/

combined +3.3, +5V	180W
combined +12V	95A / 1140W
Input Voltage	90V~264V
Input Frequency Range	47Hz ~ 63Hz
PFC	Active PFC (PF>0.99 at full load)
Efficiency	over 80% (typical loading)
MTBF	100,000 hours at 25C , full load
Operating temperature	0 ~ 50C
Protection	Over current protection, Over power protection, Over voltage protection, Short circuit protection.
Connectors	1 x 24-pin motherboard connector (550mm) 1 x 8-pin EPS12V connector (750mm) 1 x 8/4-pin EPS12V connector (750mm) 2 x 8-pin PCI-E connector (550mm) 6 x 6-pin PCI-E connector (550mm) 2 x triple SATA connector (500mm +250mm + 250mm) 2 x triple 4-pin IDE & single floppy power connectors (500mm + 250mm + 250mm + 150mm)
Color	Black (lead-free paint)
Cooling System	Single 80mm ball bearing fan
Noise Level	22 dBA @300W or below, 28dBA@ 600W, 40dBA@ 1200W
Dimension	150 mm (W) x 86 mm (H) x 215 mm (D)
Weight	3.2 kg

Packaging and Bundle

The Zeus 1200W unit is supplied in a strong dark box lacking intricate artwork, there is however a wealth of data about the unit’s performance and features, as well as many of the components Silverstone use to create the PSU.

Despite this being the most premium unit SilverStone have to offer, the bundle is nothing spectacular; as well as the black 3M mounting screws, a couple of cheap cable ties and a basic AC power cable, the only noteworthy item is the bag for storing the modular cables you aren’t going to need.