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Second PSU: Recomendations...? - Page 3

post #21 of 32
I didn't even see that since I tend to directly go to the detailed specs..

Man, that's some misleading marketing from OCZ right there. That alone would prevent me from buying any PSU from them.
    
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post #22 of 32
I usually go to the specs too but that caught my eye so I didn't go any farther.Won't do that again.
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post #23 of 32
Quote:
Originally Posted by Smokie View Post
You can hook up two PSU together. you wire the earths together between the two 20 pin connectors and some other stuff and they turn on together. I have a document on how to do it but i am at school and cant acces it. I am currently building my own case and it is built to fit 2 PSU's.
I didnt say you couldnt but why would you ? just to run 2 cards?
    
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post #24 of 32
Quote:
Originally Posted by Smokie View Post
Ok. Thanks for the info. For a single it is 450W and to run two it is 550W.
AMPS AMPS AMPS
    
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post #25 of 32
Thread Starter 
What are your oppinion on the thermaltake 750W toughpower units? Any good?
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post #26 of 32
Quote:
Originally Posted by Smokie View Post
What are your oppinion on the thermaltake 750W toughpower units? Any good?
yep

http://www.jonnyguru.com/modules.php...p=Story&reid=7

Also recommended.
    
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post #27 of 32
For those who are getting all worried about tandem PSUs, here's a little dealy-mah-bob I whipped up when I probably should have been working on my C coding during my CST class



The switch on your case simply connects those green and black wires, telling the PSU to power on... this little do-hicky is just to turn on your slave PSU at the same time as the master... all the mother board components are still run off the master PSU and the slave is just used for it's 12v rails

If you want, I can send this one off to you... I have no real use for it

As for the PSU, base it off the video card's recommended wattage... just remember that the recommended wattage is factoring in the WHOLE system... you'll only be using the slave PSU to power the cards, so you can negate a 100W or so off the suggested wattage

Basically:
Keep your 650W as Master to power your rig and 3870
Get a cheap 400W-450W w/ 20-25A on the 12V for a Slave to power your 3870x2
Edited by killa_concept - 5/15/08 at 11:32pm
post #28 of 32
Thread Starter 
I live in australia so unless you live in the same country the postage will be too much. Would you be able to email me the details on setting it all up and how it will all connect back into the computer? My email address is: smokiemehpot@gmail.com
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AL
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post #29 of 32


Connecting Pin 14 and 15 turns on a PSU... pushing the case switch is basically just an extension of this

The above cable I made is simply 2x 20pin male to female extenders

One was cut to leave only the female portion and the #14 and #15 wires... these wires tapped into the #14 and #15 wires (respectively) of the fully intact extender... solder, epoxy and electrical tape took care of the rest

Now - when the power-on button is pressed, it connects #14 and #15 of BOTH PSUs at the same time
post #30 of 32
Thread Starter 
Thanks.
AL
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AL
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