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post #81 of 120
This is why dfi boards with multiple pci-e lanes all have 2 or more 4 pin power connectors next to the lanes.Honestly a board designed to run 3 or more video cards should have the extra power connector built in already.
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post #82 of 120
It will be useful if u have a multi-rail psu depending on how u distribute the 12v rails.
    
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post #83 of 120
Quote:
Originally Posted by ih2try View Post
It will be useful if u have a multi-rail psu depending on how u distribute the 12v rails.
Rails trapping power has not been an issue on any PSU in years...
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post #84 of 120
Quote:
Originally Posted by DuckieHo View Post
Rails trapping power has not been an issue on any PSU in years...
I dont get it, can u explain your statement a little more specifically ?
    
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post #85 of 120
Quote:
Originally Posted by DuckieHo View Post
Run FurMark on both cards for 20mins... then touch the two yellow wires on the 24-pin ATX plug,
As long as my system is stable, I don't care if the wire gets hot.
    
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post #86 of 120
they will write that it's also helps your cable management.
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post #87 of 120
Quote:
Originally Posted by ih2try View Post
I dont get it, can u explain your statement a little more specifically ?
Multiple rail PSUs use Over Current Protection (OCP) circuits on a single +12v source to create virtual rails. The limits of OCP have not been an issue for systems in few years as companies realize that they can increase the OCP limit/number to avoid "trapped" power.


Quote:
Originally Posted by 100PARIK View Post
As long as my system is stable, I don't care if the wire gets hot.
What if it gets hot enough to melt the motherboard? ...and it might not happen right away.
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post #88 of 120
Quote:
Originally Posted by DuckieHo View Post
Multiple rail PSUs use Over Current Protection (OCP) circuits on a single +12v source to create virtual rails. The limits of OCP have not been an issue for systems in few years as companies realize that they can increase the OCP limit/number to avoid "trapped" power.
But the OCP set point is a limit ?
For example, it says on the the PSU that the OCP set point on the 12V rail is 36A, but I need more than that, can the PSU automatically increase that number, if so, that number on the PSU is meaningless ?
Edited by ih2try - 12/22/10 at 8:31am
    
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post #89 of 120
Quote:
Originally Posted by DuckieHo View Post
Multiple rail PSUs use Over Current Protection (OCP) circuits on a single +12v source to create virtual rails. The limits of OCP have not been an issue for systems in few years as companies realize that they can increase the OCP limit/number to avoid "trapped" power.



What if it gets hot enough to melt the motherboard? ...and it might not happen right away.
Motherboard can't melt, connectors and wire insulation can. What are the chances of this hapening to me, 1:10,000,000 ?
    
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post #90 of 120
Quote:
Originally Posted by ih2try View Post
But the OCP set point is a limit ?
For example, it says on the the PSU that the OCP set point on the 12V rail is 36A, but I need more than that, can the PSU automatically increase that number, if so, that number on the PSU is meaningless ?
Sometimes it is, sometimes it isn't. You really need an in depth review of your power supply to determine if the OCP is actually set to how it's reported on the PSU. Even if it's not set at the limit the manufacturer specifies, there's no telling where it might be, if it exists at all.

Quote:
Originally Posted by 100PARIK View Post
Motherboard can't melt, connectors and wire insulation can. What are the chances of this hapening to me, 1:10,000,000 ?
Good enough that eVGA is marketing this CYA product.

The simple fact is that a 14-18 gauge wire, neither the minifit connector attached to it was ever intended to carry dozens of amps.
Edited by RonindeBeatrice - 12/22/10 at 9:16am
    
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