New Graphic Card, no power connector cable - can this one work?

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DocCovington

DocCovington

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Jul 29, 2015
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Hello community,

I just got my new graphics card in (Asus DirectCU II OC, Geforce GTX 760, 4 GB) only to realize that it did not come with any power cable to connect to my PSU.

Now, the problem is that my PSU is from 2010 (be quiet! 680W ATX Power Supply) and I don't know whether the connectors available are sufficient for the card:
psu_connectors.jpg

The two to the right are the slots labelled "PCI-e 1" and "PCI-e 2".

The connector for my graphic card needs the following 8 pins:
gfxcard_power.jpg


Now the two big questions:

1) Can I use the following cable (see picture below), which would connect to only one of the PCI-e slots on my PSU and which would leave one of the two graphic card connectors (the 6-pin) unused?

2) If question 1 can be answered Yes, would there be enough power floating into my graphic card this way? Wouldn't some of the power be lost in the ununsed 6-pin connector?
psu_gfx-cable.jpg


Thanks in advance,
Doc :)
 
Solution
S
If you PSU is a STRAIGHT POWER E9 680W / CM.
It consist of four 6+2 pin PCIE connectors for the gpu. There are two slots labeled PCie in red and green.
You only need the single cable that has two 6+2 pin PCIE connector on the end. The green connectors connect to the PSU, there are the 6+2 pcie plugs that are coloured blue. You plug one of the 6+2 plug into the gpu and you are done.

If it is the STRAIGHT POWER E8 680W / CM or the E7, same thing still applies but you only got two 6 pin and two 6+2 pcie connectors.
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Suztera

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If you PSU is a STRAIGHT POWER E9 680W / CM.
It consist of four 6+2 pin PCIE connectors for the gpu. There are two slots labeled PCie in red and green.
You only need the single cable that has two 6+2 pin PCIE connector on the end. The green connectors connect to the PSU, there are the 6+2 pcie plugs that are coloured blue. You plug one of the 6+2 plug into the gpu and you are done.

If it is the STRAIGHT POWER E8 680W / CM or the E7, same thing still applies but you only got two 6 pin and two 6+2 pcie connectors.
 
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DocCovington

DocCovington

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Hey, thanks for the quick response!

I just updated my post to make it clearer what I meant.

So, I have two of the above cables and two PCI-e slots on my PSU. You are saying that the following connection will provide my graphic card with the sufficient amount of power it needs to operate at full capacity, is that correct? >> Red end of the cable (see last picture in entry post) goes into one of the PCI-e slots on my PSU and the blue end with the 6+2-pins goes into my graphic card, leaving the blue 6-pin connector unused?
 
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Suztera

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Yes, the red end connect to the PSU. Bequiet uses colour code where the plugs goes into the PSU.
 
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DocCovington

DocCovington

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And it will provide full power and won't leave the graphic card somewhat "crippled" in its capacity because one of the blue connectors remains unconnected?
 
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DocCovington

DocCovington

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So it will be sufficient, even for let's say overclocking purposes? Or do I need a different cable for that or one that is plugged into both PCI-e slots on my PSU?
 
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Suztera

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The single cable is enough. You do not need a different cable. You only need one plug into your pcie slot on the psu as you only need one 6+2 pcie plug for your GTX 760.
 
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DocCovington

DocCovington

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Wait a minute... According to this page, the cable that is missing from my package looks like this:
http://www.digitalstorm.com/unlocked/review-and-unboxing-asus-gtx-760-directcu-ii-oc-idnum76/
accessories.jpg

I am confused now looking at that PCI-e V-shaped adapter that comes with the original packaging (only not with mine, grrr!).

Is it meant to supply two cards (if you do SLI) or is it supposed to be plugged into two PCI-e slots on the PSU for one card (like in the following image)? > http://media.creativebloq.futurecdn.net/sites/creativebloq.com/files/images/2014/04/3dw178featworkstation/13.jpg
 
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Suztera

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It a 6 pin pcie to 8 pin pcie adapter. You do not need to use it since your psu can support 6 pin and 6+2 pin. If your have to use these adapters, it generally means your psu is either outdated or is not good enough for the graphic card that you plan to use.
 
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DocCovington

DocCovington

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Gotcha. Thanks. :)
 
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