SilverStone Olympia OP-850 850 Watt Power Supply

Silverstone is well known for their top of the line premium power supplies, cases, and storage peripherals.  I have reviewed several SilverStone power supplies and all of them feature a very sturdy casing and high quality internal components.  Today, we are going to take a look at the Olympia Series of power supplies, which falls under the industrial / workstation category of power supplies for Silver Stone.  They are basically the workhorse line of power supplies.  The OP850 is a 850 watt unit that features a strong 70A single +12v rail. 

Upon opening the box, you will find the manual, power cable, some screws, zip ties, and two PCI-e 8-pin to 6-pin converters.

Here are some of the main features and specifications from SilverStone's Website:

The Power Supply:

The power supply features a smooth matte black colored housing, which looks pretty standard these days.

Looking at the side of the power supply, there is a SilverStone label with their logo on it, the model number and a condensed specification list.  Note that there is a single rail supplying up to 70 Amps, which is great for peripherals requiring more power such as a multi-core CPU and/or multiple graphics cards.

There is an large grill on the back which allows the 120mm fan to exhaust hot air, an on/off switch and AC Power Input.  This power supply does feature Active PFC, so there is no need for a switch to select the input voltage.

This power supply features the following cables:

-A 24-pin ATX power connector with removable 4 pin for backwards 20-pin compatibility.

-A 4+4 pin (8-pin) +12v EPS Power Connector and a 4-pin CPU +12v power connector

-2x 6+2 Pin and 2x 6 Pin PCI Express Power Connectors.

-6x Molex Power Connectors

-6x Serial ATA Power Connectors

-2x Floppy Power Connectors

Cooling:

There is a 120mm fan on the bottom of this power supply. During testing, at idle loads, this fan is quiet, which is great for a 850 Watt power supply.  With loads, the fan slowly sped up to what I would call a medium speed, which was audible, but not bothersome.

Inside the Power Supply:

* Taking this power supply apart will void the warranty.

Inside the power supply, there are two large silver colored finned heat sinks that has fins to cool down the voltage rectifiers. There are two large transformers in the upper middle of the pictures and a tiny one underneath.  The layout and build quality of this power supply is great. The Primary capacitor is TK (Toshin Kogyo) branded.

The Primary capacitor is TK branded.

The secondary capacitors are Teapo branded.

The fan inside is a ADDA branded fan, which is what I consider to be of high quality. It has the model number AD1212UB-A71GL with a maximum draw of .50 AMPs.

Testing:

For this power supply, the test system consists of the following:

-Antec Nine Hundred Case

-Intel Core 2 Quad Q6600 Quad Core Processor @ 3.4 GHz

-ZeroTherm Nirvana 120 Heatsink

-eVGA nForce 680i SLi Motherboard

-2GB (1GB x 2) of Mushkin XP2-8500 DDRII-1066 Memory

-320GB x 4 Western Digital 16MB Cache Hard Drives

-2x nVIDIA GeForce 8800GTS (G92) Video Cards @ 715MHz Core / 1000 MHz Memory

-Sound Blaster Live! 5.1 Digital Sound Card

-Sony 16x DVD-RAM / 18x Samsung DVD-RAM Drives

-4x 120MM fans, 1x 200mm fan

-2x CCFL Lights

(Multimeter Results)

*For additional / larger pictures of the SilverStone OP850, Click Here

*Voltages are at 'Max Load', running Orthos, SiSoft 2009 Hard Drive Benchmark and 3DMark06 CPU Test 1 and 2 / Deep Freeze HDR test, and read with a Multi-Meter.

Capacitor Brands:

Great/Good, Japanese / Taiwanese manufactured capacitors. 

Primary: TK

Secondary: Teapo

Voltage Results:

+The results were great for this power supply and are within range.  The voltages barely budged.

Stability Results:

+Everything ran fine during testing, the system was stable and performed the tests as expected. 

Fan Speed Impressions:

+ At idle loads, the fan is quiet and the sound it produces is not intrusive.  At loads, it makes a whirring noise but is still acceptable.

Installation:

+Installation of this power supply went well.  There were no issues fitting it inside the test system's case.

Conclusion:

The OP850 would be ideal for anyone looking to build a multi core system with multiple video cards and the strong single rail +12v rail is perfect for this.  It features AMD Crossfire certification as well.  At around $180, this power supply is a little expensive for a 850 watt power supply.  A price of $150 or less would be ideal.  Overall, this is a great power supply and should be purchased by anyone looking for a nice high performing power supply.

Pros +

-Great power output

-Three year warranty

-Quiet fan

-70A on the +12v rail (single rail)

Cons -

-Not modular

Techaddicts.net would like to give this power supply a 'Great' rating and the Highly Recommended award.

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