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IMPORTANT question about power pin

Last response: in Systems
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November 6, 2013 10:44:16 AM

Hey guys my power has 3 x 8pin and i have 2 gtx 770 4Gb (each need 2x8 pin )

so for 2 days i used it with 3x8 pin and 1x6pin , but the SLI did not work then i stoped using 6pin , so did it damage my VGA ?

and now i'm using molex connector , is it ok to use molex ?
my power is 1035 WATT
November 6, 2013 10:50:33 AM

Yeah your problem as to why they would not SLI is because of a lack of power to one of the cards.

You should be ok using the molex to eight pin since you have at least a 1000W power supply.

I take it you have connected the bridge ribbon provided to use SlI of the two 770 cards.
If so it was due to voltage.

One more thing if the cards are of two different brands check eack of the clock frequencys
of each card for the Gpu, shaders, and memory speed match.
Some times it can cause the cards not to enter SLI mode since they are not synced.

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November 6, 2013 10:54:09 AM

Shaun o said:
Yeah your problem as to why they would not SLI is because of a lack of power to one of the cards.

You should be ok using the molex to eight pin since you have at least a 1000W power supply.


did it cause any damage when i used 6 pin for my second vga ?
and yes i used sli bridge

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November 6, 2013 11:23:13 AM

I would not of thought so.
If it works fine with the new power cables then fine.
How else are you going to test if it was the problem.

If it did simply RMA the card saying it is faulty.
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Best solution

November 6, 2013 2:41:18 PM

Generally speaking, unless you connect power in reverse, it won't damage the card, but that isn't always the case. I would try it with a proper power supply/connectors first, and if it doesn't work, RMA the card.
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