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PSU x2 wired up together - Page 5  

post #41 of 111
What a complete noob.... if you wanted to use 2 psu why not just use them completely independent of each other?
    
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post #42 of 111
I would just buy one of these, they're proven to work wonderfully.

http://www.performance-pcs.com/catal...ducts_id=21193
    
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post #43 of 111
Thread Starter 
lucky for me they are both the same brand and in their manuals it show that they have the same ripple values
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post #44 of 111
Thread Starter 
I used them independently for a week my screens started flickering black when i stressed the gpu to 100%
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post #45 of 111
Thread Starter 
Jaguar that is practically what i did but i did it myself and not using the cable.
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post #46 of 111
Quote:
Originally Posted by DeltaKINGxxx View Post
its a simple circuit really its like adding two cells(batteries) to increase the light of a small light bulb same rules apply except, only the corresponding wires should make contact and not touch others hey.................
Well, no, that would be connecting ground to the "live" wires. What you have done is wired the supplies in parallel.

Very simply, you have halved the power draw from each PSU (assuming single rail, equal resistance, etc.)

However, if the two power supplies do not provide the same voltages, you will be inducing a voltage potential across a strand of wire. I am sure that this potential is minimal, and modern power supplies and computer components will probably cope, but this is still quite undesirable.

Simply using the two independently would be better. (Even though your system does not need it.) As long as you distribute the power draw intelligently, you will end up with the same goal as parallel psus (half power draw on each psu) without the the drawbacks.

Essentially, you had two directions to go in, and you have chosen the poorer one.
Edited by Sun - 1/13/11 at 1:43pm
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post #47 of 111
Quote:
Originally Posted by DeltaKINGxxx View Post
lucky for me they are both the same brand and in their manuals it show that they have the same ripple values
Yeah but the ripples have to line up just right and be exactly the same frequency. As stated earlier, worst case the ripples will constructively interfere and may put your final ripple way beyond spec. Then stuff might start dying.

It's cool you did this and it actually works, this definitely is an interesting MythBusters-style experiment, but it's about as smart as putting diesel into a gasoline tank and expecting it to work long-term.
post #48 of 111
Quote:
Originally Posted by DeltaKINGxxx View Post
Jaguar that is practically what i did but i did it myself and not using the cable.
As long as you have the wires FIRMLY in place and they're secured, you should have no problem. However, if one PSU goes, must likely they both will, and the voltage from both of them will completely fry your system.

The risk isn't as large when you only have 1 PSU. (Brand dependent ofc)
    
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post #49 of 111
this is a very cool mod but... Kind of point less

Point is that You and What's his name Got to stop fighting !

Yes this is a cool mod

Yes this is point less BUT i bet it was fun!
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post #50 of 111
Thread Starter 
MY watercooler recommended 600w or more my motherboard recommended 600w or more my gpu recommended 600w or more all for max stability
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