OCZ EliteXStream 800W Review

gotdamojo06 - 2008-05-03 12:08:46 in Power Supplies
Category: Power Supplies
Reviewed by: gotdamojo06   
Reviewed on: May 23, 2008
Price: $179.99


With the release of some of the newer processors, you may begin to think that your power supply is not going to be powerful enough to power all of the components. Maybe you have some of the top-of-the-line components, like running Crossfire or SLI, or you want to protect yourself when it comes to powering your setup. This is where the name OCZ comes to mind. The company has a great lineup of power supplies and it has recently released a new one that can produce up to 800 watts, called the OCZ EliteXStream. What sets this power supply apart from the other power supplies that you could get? I will put the OCZ EliteXStream 800W power supply to the test and see how well it compares to some of the others.  

Closer Look:  

When you take a look at the front of the packaging for the OCZ EliteXStream 800W power supply, you will see a large picture of the power supply on the right hand side of the box. On the left side is where the power rating for the EliteXStream is located; the 800W is very large and bold, allowing you to easily see it and have it grab your attention, getting you attracted to the unit. In the middle of the box, OCZ decided to put some of the main features of the EliteXStream 800W power supply, which includes that the power supply is ready to power an SLI setup. In the lower left hand corner, you can see the five year warranty that OCZ placed on the EliteXStream. The back of the box is where you are able to see more of the features and useful information about the EliteXStream 800W power supply and see another picture of the power supply. Both of the sides are very similar as they both display a picture of the OCZ EliteXStream 800W power supply, and the bottom, in large bold print, states the 800W power rating.  




When you open the package of the OCZ EliteXStream 800W power supply, you notice that there is a piece of white cardboard keeping the EliteXStream from receiving any damage during the shipping process and keeping it in place. This is also done on the reverse side of the cardboard, having foam pieces to keep the unit in place. On top of the cardboard lies a user manual. You get your first glimpse at the OCZ EliteXStream 800W power supply when you move the cardboard on top. The unit is wrapped in a light pinkish colored plastic bag to reduce the chance of receiving any scratches during the shipping process. Inside the box, you get not only the power supply and user manual, you also receive a power cord to power the EliteXStream and some screws so you are able to mount it in your case.  



Let's keep looking at the OCZ EliteXStream 800W power supply and see what it looks like on the inside.  

Closer Look:  

When you first pull the OCZ EliteXStream 800W power supply out of its packaging and get the pink-ish colored plastic bag off of the unit, you are able to see that OCZ decided to color the unit with a dark gun metal looking shade. When you look at the side of the power supply that will be visible from the outside of your case, you are able to see that there is a wire mesh type material that will allow for airflow to be circulated through the power supply to help cool the components inside that will get warm. Below the on/off switch there is a light that indicates if the power supply is on or not. The opposite side of the EliteXStream, where all of the wires are coming out, is very plain and has nothing worth noting. The next side is where all of the ratings are located, which can be helpful if you were wondering which model this power supply was or how much it is rated to put out and on which rails. The side opposite to that side is plain, though it has a depressed OCZ logo along with the model name, as well as the power rating at the top.  








Both the top and the bottom of the EliteXStream are very simple and are very much similar to every other power supply out on the market. The top hosts a large 120mm fan that will draw fresh air in from the inside of the case that will then be able to circulate throughout the power supply and exit out the back of the unit, actively cooling the components inside. The bottom of the power supply is blank and has nothing notable on it.  



The large 120mm fan that is mounted on the top of the power supply is a Protechnic Magic 12V fan that plugs directly into the PFC board that is mounted inside of the power supply to receive power when the power supply is powered on.  


When you finish taking off the cover of the power supply and you take a look inside, you are able to see that on either side of the power supply there has been a thick plastic sheet to keep any components on the inside from touching the sides of the unit and shorting out. If you look behind that, you are able to see the PFC board that actively regulates the power being drawn and given out through the rails. Taking a look at the innards from the top you are able to see that there is a large black heatsink that covers all of the capacitors and other components that get warm inside the power supply.  




The OCZ EliteXStream 800W power supply comes with quite a few PCI-E power connectors that will allow you to power multiple video cards inside your system. There are four connectors that have the Molex colored red, which are 6 + 2-pin connectors that allow them to be connected to older video cards that only require a 6-pin. There is one 8-pin connector with a black colored molex. When you take a look at the other connectors that are included with this power supply, you are able to see that there is one 24-pin molex that you use to power your motherboard. There are also eight SATA power connectors which will allow you to power just about as many hard drives as needed. There are also eight 4-pin connectors that are used to power most optical drives, most case fans, as well as some older hard drives.  



Now that we know what the OCZ EliteXStream looks like on the inside and out, let's see what the specifications of it are.



Model         OCZ800EXS    
Type ATX Form Factor 12V V2.3 / SSI standard EPS 12V V2.91
Dimension (W / H / D) 150(W) x 160(L) x 86(H) (mm)
Input Voltage 90~264V (Auto Range)
Input Current 12A@ 115 Vac / 6.3A@ 230 Vac
Input Frequency Range                 47~63 Hz
PFC Active PFC(0.99)
Power Good Signal                 100~500 ms
Hold Up Time >17 ms

                81%(170W) / 85%(425W) / 82%(850W)

MTBF >100,000 hrs
Protection OVP / OCP / OTP / OLP / Short / Full Protection
Output Capacity 800 Watts Continuous
Max. Output Capacity                 800 Watts
Operation Temperature 0~50℃(Nominal Input Voltage)
Safety CE / cUL / TUV / NEMKO / BSMI / FCC / CCC / C-tick / GOST
Fan 120mm fan with intelligent speed control
Certification 80 Plus
Connector M/B 24 Pin Connector x 1
PCI-E 8 Pin x 
PCI-E 6 + 2 Pin x 4
4 Pin Peripheral x 8
SATA x 8
4 Pin Floppy x 2




To properly test the OCZ EliteXStream 800 watt power supply, I will be using a digital multimeter to gather readings of the different rails of the power supplies. I will be doing this under two conditions. The first will be idle testing, measured after the computer has been started up and sitting for about a half hour doing nothing. The second condition will be measured while the computer is performing different tasks back-to-back, such as an OCCT 30 minute stress test, as well as 3DMark06. Our current testing methodology revolves around testing each independent rail with a multimeter to verify the lack of droop and to ensure that the voltage is maintained within specifications. In the near future OverclockersClub will follow a more formal load testing methodology to provide a more in-depth analysis of the power supply. Keep checking back for that change.

Testing Setup:

Comparison Power Supplies:





  • Power Supply: Cooler Master Real Power Pro 850W
  • Power Supply: Ultra Power Partner 325W
  • Power Supply: OCZ 700W GameXStream












    The OCZ EliteXStream power supply did exactly what I needed it to do, power the system that I had put it in. Not only did it power the system that I put it in, it also was able to deliver the power on the rails very close to what the ratings are.  



    The OCZ EliteXStream 800W power supply is a great looking piece of hardware that does not have many flashy eye-catching features on the power supply, though it does have a very sleek design that could be favored by all. I personally do not like the LED fans that come in most of the power supplies that will light up half your room at night. Along the same lines of the fan that is included, the power supply operated at a more silent level than my OCZ GameXStream power supply does. I liked how many different connectors there are on this power supply, which will make it very versatile between different setups; however, it would have been nice if OCZ could have added a modular or partial modular design, the wire management was not quite as easy due to the large number of wires to hide. The power supply is SLI ready, which is a great selling point for power supplies nowadays as it proves that the power supply has enough power to power a multi-GPU setup as well as having enough connectors to do so. The price of this particular power supply is comparable in price to many of the 800 watt power supplies on the market, as it falls in the middle range. Not the most or least expensive, though this is one of the high end power supplies from OCZ. If you are looking for a new, powerful power supply for your computer, either because yours is failing, already died, or does not support multi-GPU setups, I would suggest picking up one of the EliteXStream 800W power supplies.

    In the near future, OverclockersClub will be changing the format of its power supply reviews to supply the end user with a more thorough analysis of the power supply, including load testing up to the rated capacity to check for the rated output, as well as the voltage measurements and electronic noise. Stay tuned for our new testing methodology.