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My new ocz 850

post #1 of 10
Thread Starter 
Can i hope that my SLI setup won't kill my new 850 gamexstream like it did my 700w stealthxstream i am afraid to add my other 260 as i got the luck when the 700 smoked it didn't kill anything and i don't have the extra cash to fix it.

Thanks in advance

ps iv been up for 28 hours please don't destroy me for things that are misspelled and what not.
post #2 of 10
That's actually a crap unit, ripple goes out of ATX Spec.
The StealthXStream 700w is/was a decent unit; that had in spec ripple.

Did you get that unit as a replacement from OCZ? I would contact them and ask for a different PSU.
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post #3 of 10
Your smps wattage is more than capable enough to handle your setup. As for the quality of the product, dnt know anything.
    
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post #4 of 10
Thread Starter 
Quote:
Originally Posted by Tator Tot View Post
That's actually a crap unit, ripple goes out of ATX Spec.
The StealthXStream 700w is/was a decent unit; that had in spec ripple.

Did you get that unit as a replacement from OCZ? I would contact them and ask for a different PSU.
No i got this unit at microcenter as a refurbished unit for $75 haven't had the time to send the old one back.
post #5 of 10
Quote:
Originally Posted by Zig-Zag View Post
No i got this unit at microcenter as a refurbished unit for $75 haven't had the time to send the old one back.
Return the unit and pick up something different. That thing is garbage.

A Kingwin MKW-850 or OCZ SXSII 700 are better options.
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post #6 of 10
Thread Starter 
Can you please explain what ripple is and what it dose?
post #7 of 10
Ripple.

Anyway, the short version about excessive ripple is that it toasts your computer components over time.
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post #8 of 10
Quote:
Originally Posted by Zig-Zag View Post
Can you please explain what ripple is and what it dose?
Ripple is the fluctuation in voltage.
To much fluctuation, and components will burn out or get damaged.
The higher the ripple, the larger the fluctuation.

That unit has around 150mv of ripple on the 12v rail at the 700w load range; and this ripple moves peak to peak every 10ms

So assuming your 12v rail is running at 12v on average; with 150mv of ripple it's changing from 12.15v to 11.85v every 10 milliseconds.
What this actuation does is increase the "load" on the power circuitry of your motherboard, GPU, Hard Drives, ect; and cause them to have to constantly work to correct the voltage so that it's at 12v's constantly.

ATX Guildelines for PSU Design state that the 12v rail can't go over 120mv. At full load (850w) your unit can produce upwards of 190mv on the 12v rail. Which is over spec by a long shot; and bad for your components.

Now your current system won't load that unit that much; but your system will load it into the 450w range which still produces around 90 to 100mv of ripple on the 12v rail which is really high.

The other units I listed do not have ripple that high, even at full load.
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post #9 of 10
Thread Starter 
Quote:
Originally Posted by Tator Tot View Post
Ripple is the fluctuation in voltage.
To much fluctuation, and components will burn out or get damaged.
The higher the ripple, the larger the fluctuation.

That unit has around 150mv of ripple on the 12v rail at the 700w load range; and this ripple moves peak to peak every 10ms

So assuming your 12v rail is running at 12v on average; with 150mv of ripple it's changing from 12.15v to 11.85v every 10 milliseconds.
What this actuation does is increase the "load" on the power circuitry of your motherboard, GPU, Hard Drives, ect; and cause them to have to constantly work to correct the voltage so that it's at 12v's constantly.

ATX Guildelines for PSU Design state that the 12v rail can't go over 120mv. At full load (850w) your unit can produce upwards of 190mv on the 12v rail. Which is over spec by a long shot; and bad for your components.

Now your current system won't load that unit that much; but your system will load it into the 450w range which still produces around 90 to 100mv of ripple on the 12v rail which is really high.

The other units I listed do not have ripple that high, even at full load.
Thank you if i could give you rep i would
post #10 of 10
Quote:
Originally Posted by Zig-Zag View Post
Thank you if i could give you rep i would
No problem.

And don't worry about REP, Staff members (those of us with pretty badges) don't have the REP+ button anymore because we get the shiny badge
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CPUMotherboardGraphicsRAM
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Samsung Spinpoint F3 1TB Samsung Spinpoint F3 1TB Western Digital Green 2TB Samsung Spinpoint M4 500GB 
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Intel X-25M G2 80GB Lite-On BluRay Drive Arctic Cooling Freezer 13 Pro Windows 7 Ultimate 
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Dell U2212HM Deck Legend Frost Tactile Silverstone Strider Plus 750w Custom Acrylic Test Bed 
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