Guess you need something like this
https://www.newegg.com/Product/Product.aspx?Item=N82E16812200420
Edit: Silly, me yep, you just need connect a to b cable power
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Ok, so if I'm seeing this correctly, you should just need to plug in your 8-pin 12V VGA cable from the power supply to the GPU. That's it.
I'm not sure where the two six-pin ones came from...what's on the other end of them? Oh, wait, I get it...they're spliced in to your power supply as well, right? If that's the case, you shouldn't need to do anything with them, assuming that they are just spliced into another VGA cable coming from your power supply. The whole point here is that your GPU needs a dedicated 12V power line run to it in order to have enough power (the power received from the slot on the motherboard is not enough for powerful graphics cards). It only has one 8-pin plug, so it only needs one 8-pin 12V cable from the power supply plugged into it. Some older cards used to use 6-pin connections, and often, two of them (my old 6970 was like this), so your power supply manufacturer probably took that into account by supplying the extra cable to fit that situation. That's not your situation, so you should be able to just tuck the extra power supply cables back in the case somewhere (or remove them if it's modular).
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Kinda odd ... are you sure thats the one for VGA/PCI-E and not the one thats powers the motherboard?
If there's any doubt check again. http://www.playtool.com/pages/psuconnectors/connectors.html
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^^^^ Yep, what they said. If it's truly the VGA lead from the PSU, then it should fit. Is this a modular PSU? If so, be sure that you are using the right cable.
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i'm not really seeing the problem personally.. just attach the cord labeled "from the power supply", directly into the card. the supplementary cable/adapter is in case you have the 6pin style psu that requires two of them for the proper voltage, but shouldn't be necessary at all in your circumstance.
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Uhm… you plug the cable you hold in your hand on the first picture to the 8-pin slot on the card that is also on the first picture.
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the 8 pin vga cable doesnt fully match with the gpu slot. the first 6 match but the 2 doesnt. from the gpu it is square and the vga has the other shape.
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it says vga 1 on it. it has 6+2 pins the 2 ones are seperated and you have to hold them together.
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yes., i have 2 of them. both of them are identical. it has a 12 pin powe supply connector and it splits in 2 parts which says vga 1 and vga 2. the other cable is the same with vga 3 and vga 4.
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If that's the case, it's the weirdest thing I've seen. I've built dozens of custom gaming rigs and haven't ever had to do that. So bizarre. What GPU is this that needs this strange connection?
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No worries...the whole thing is strange. My best guess is that he has the wrong modular cable from the PSU going to the GPU. He probably has it plugged into the port marked "VGA" on the PSU, but it's likely the 8-pin 12V motherboard power lead.
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i didn't really catch that, but i see now that yeah one is rounded that shouldnt be. by chance does it have a break spot to break away a 2-section?? some psu's ends like those modulate so you can take the 2pins on the right side, and put them on the other side instead.. i'm honestly not sure if that's the case here.
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yes it breaks. it is a 6+2 but one of the 2 doesnt match the form.
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it's really hard to tell from photo when both are angled that way, but i think you are just holding the 2pin on the wrong side is all.
edit: nah.. more detailed look made me realize it will still end up with a rounded end where a square end should be. =(
honestly i'm clueless, what PSU model is that?
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i added another picture. scroll down and you can see. the right part of the vga comes to the left one.because you have to turn it of course to put it in.
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yeah, i just noticed that too.. added to edit. sorry, i'm clueless now. that is strange.
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Those different shapes are there just so you can't connect the cable in the wrong position/orientation. The non-square pin will fit the square hole, so it's fine. The problem would be if it was the opposite: the hole was non-square and the cable was square (that would basically mean you're trying to connect it in the wrong position/orientation).
That supplementary cable is for PSU's that don't have any 6+2 connector. Instead you use that adapter to connect two 6-pin connectors.
edit:
It's true that the top-right pin on the cable should be square, so you couldn't connect "by accident" (don't know how you could do this by accident) that 2-pin part to the right side of the connector.
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If your card has the 6 points to plug it into do so - yes, you can leave the extra 2 points unplugged. The two extra points are just in case your VGA card needs 8 points. The reason they are on a separate cable is if you Don't need them, you don't have to plug them in.
The six points should plug in fine, just make sure the shapes line up - One of them may be square or have a rounded edge. The cable is designed that you should be able to plug it in only one way.
Alternatively, from the look of your cables you have a Modular Power Supply - Have a look in your box, and you should have the 6 point cable in there - Most modular supplies come with the alternate cable in case you need it. My Cougar came with about 15 extra cables, and it was just a matter of choosing which ones I wanted.
If you don't have all the cables and really want to make sure, just head to your local PC Repair store - A lot of times they will have leftover cables from system builds that they will sell for a few dollars.
Edit
Checking the other pictures - that one you have called "Supplementary Cable" seems to have the right connection.
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try to put in that 6+2 cable, it should fit either way...
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The two-pin connector on your modular power supply cable is wrong
It should look like this, with one rounded pin and one square pin.
You're going to have to use the supplied adapter and 2x6 pin from the PSU to power the 8-pin connector on the card.
Edit: I'm curious what PSU you're using now. I've never seen one that had the wrong connectors like that.
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I'm wondering if he's using the 12V 8-pin mobo cable instead of one intended for PCIe GPU power. They are likely wired differently, and so probably also have different pins to prevent someone from doing exactly this. :)
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I am building right now my pc and i dont know what to do because of the vga cable and the graphics card. They dont match.
The graphics card has a square connection part on left up but the cable has the other form.
i have a supplementary cable for the graphics card and i the guide says i should put the black one on the graphics card and the other 2 cables to the power supply cable. but how the vga has 6+2 . do i need to connect 2 vga cables and leave the +2 pins without any connection?
Here are some pics to show you the situation. http://imgur.com/a/R4EVY
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