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How to power 2x8-pin GPU on 6pin slots PSU?

synectic

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Hey I recently bought Asus GTX 980 TI Strix OC which has 2x 8pin connections. Then I noticed my PSU looks like this: http://content.hwigroup.net/images/products_xl/088870/3/be-quiet-dark-power-pro-p8-1000w.jpg

So now I'm stuck. Do I need to buy new PSU? Or is there a way to connect this card somehow?

I have one 2x 6 to 8 Y cable that came with the card and another one in the cpu used with the current card, which is 2x 6 to 6 and 6+2. Can I make use of that?
 
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List your specs. (All of them) If you don't have the two 8 pin connectors then you need to get the proper cables. Some will tell you to use an adapter but I wouldn't, not with a 980 ti
So your PSU is a DARK POWER PROp8 1000W?
And you need two pci-e 8 pin cables for it?
 
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What does the other end of the cables look like, how many 6 or 8 pin connectors are there?
edit:According to their site it has three 6 pin and three 6+2 pin.
 
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your PSU comes with....
PCI-Express Connector 8 x 6+2 Pin , either go into your box or wherever you keep the cables it came with, and get the proper cords. the PSU side looks to be a single peice 8 pin, and the other "GPU"end will be a solid single 6 pin, with a satellite 2 pin add on. if thats not exactly the PSU, it will still be close.

Source ..
 

synectic

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List your specs. (All of them) If you don't have the two 8 pin connectors then you need to get the proper cables. Some will tell you to use an adapter but I wouldn't, not with a 980 ti
So your PSU is a DARK POWER PROp8 1000W?
And you need two pci-e 8 pin cables for it?


I'm super weak at any computer stuff. I just want to connect this Asus GTX980 TI Strix OC which has 2x8pin connections to my Dark Power Pro P8 1000w PSU.

CPU Specs:
Intel Core i7-3930K Extreme, 3.2 GHz, 12MB, LGA2011, BOX

ASUS P9X79 DELUXE /X79/USB3/PCIe3.0/WiFi/BT/s.2011/ATX

VGA ASUS GTX670 DC OC 2048MB GDDR5 256b 2DVI+HDMI+DP PCIe3.0 (current graphic card will be replaced with the gtx980)

DVD RW ASUS DRW-24B3LT black bulk SATA

32GB CORSAIR DDR3 RAM

Corsair SSD Force Series 240GB 2,5'' SATA III NAND ( Read/Write 550MB/520MB/s )
Seagate Barracuda, 3.5'', 3TB, SATA/600, 7200RPM, 64MB cache

Be Quiet! Dark Power Pro P8 1000w

Corsair Graphite 600T

Noctua NH-D14 SE2011
 
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And none of your 6 pins ends have a little set of 2 pin hanging off them?
Check them all

And do you have all the cables that came with the PSU?
 

synectic

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What does the other end of the cables look like, how many 6 or 8 pin connectors are there?
edit:According to their site it has three 6 pin and three 6+2 pin.

I've got only one 6+2 cable here.
 
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synectic

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And none of your 6 pins ends have a little set of 2 pin hanging off them?
Check them all

And do you have all the cables that came with the PSU?

Yeah the problem is I bought this cpu around 3-4 years ago, don't have the rest of the cables. There is just one with 6+2 that is currently plugged to the gtx670 graphics card
 

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Where do you live?

If you dont have the other psu cables, you need to buy the vga ones, from the looks of it, you need a couple 8 to 8 cables, they are around 10 bucks each
 

synectic

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Ok I found the box with cables, it turns out they are 12pin -> 6 and 6+2...
 

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I was thinkinb thats wat they usually are,but i amittedly have zero experience with german power supplier bequiet
 

synectic

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Where do you live?

If you dont have the other psu cables, you need to buy the vga ones, from the looks of it, you need a couple 8 to 8 cables, they are around 10 bucks each

Why 8 to 8? Power supply seems to have 12 pin connections only, how do I connect 8?
 
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Poland, is it relevant?
because of where you could buy needed cables, and what stores are available to You. thats why the details panel in your personal settings so important to have filled out, in case of times like this.also, for when a kind member is willing to send the items to You, etc.. the instances are limitless. @ that time You had posted that you only had the cables in your PC, so it looked like You might need to order some.

Why 8 to 8? Power supply seems to have 12 pin connections only, how do I connect 8?
i was mistaken, i thought it was an 8pin plug on the power supply, that went to a 6+3 pin on the VGA end.
 

synectic

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because of where you could buy needed cables, and what stores are available to You. thats why the details panel in your personal settings so important to have filled out, in case of times like this.also, for when a kind member is willing to send the items to You, etc.. the instances are limitless. @ that time You had posted that you only had the cables in your PC, so it looked like You might need to order some.


i was mistaken, i thought it was an 8pin plug on the power supply, that went to a 6+3 pin on the VGA end.

I think most of the sellers (at least on ebay) send to Poland. So yeah it's ok I can order, but which ones? Would two of those http://www.ebay.com/itm/12-be-quiet...062731?hash=item4d309cc70b:g:q3wAAOSwrx5UXkda work with the 12pin connection on psu? Sorry for the lack of knowledge, but all this is pretty new to me.
 
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Oh, i thought you found the box with the cable?? if you did You dont need to order anything. you included cables with your power supply will have 4 or more, 6+2 pin VGA plugs.
they look like this....this is the end that goes into the 980

 

synectic

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Oh, i thought you found the box with the cable?? if you did You dont need to order anything. you included cables with your power supply will have 4 or more, 6+2 pin VGA plugs.
they look like this /.///

Yes I found it, but they all look like in the image attached.

Basically there are 3 cables like this. It's 12pin to 6 and 6+2 in one cable.
 

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The +2 pins are literally just grounds. If you have a 6+2-pin and a 6-pin and the power supply can handle it, you should be able to plug those in and the card should work. It's a good idea to have the +2 pin but it isn't absolutely necessary. It was designed with backwards compatibility in mind.

Do not use a Y cable unless the Y split occurs at the connector inserted into the PSU. Running 200+ watts through one set of cables is liable to cause problems if the guage isn't thick enough. If it looks something like this, it will work and, assuming both are connected to the card, should be sufficient to run it:
 
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synectic

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The +2 pins are literally just grounds. If you have a 6+2-pin and a 6-pin and the power supply can handle it, you should be able to plug those in and the card should work. It's a good idea to have the +2 pin but it isn't absolutely necessary. It was designed with backwards compatibility in mind.

Wouldn't it provide less power? I mean they must put those 2x8pin for a reason on the Asus GTX980 TI OC
 
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It is meant to indicate the maximum power draw:
PCI Express slot: 75w
6-pin: 75w (3+ and 3-)
8-pin: 150w (3+ and 5-)

Your card, according to the standards, could draw up to 375w. Realistically, it will never get close to that but it is important to have a power supply that can handle that kind of load. Your 1000w should be able to but it may have been manufactured before they started pushing out 8-pin cards, hence only having 6-pin connectors. They designed 6-pin to insert into 8-pin for this reason. If the 6-pin truly couldn't handle 150w, they wouldn't have made it backwards compatible.

It should be okay. If there isn't adequate enough power, the card should display a message on boot. If the PSU fails to provide enough power under load, you'll start seeing stability issues. If either occur (and I highly doubt they will), you'll likely need to be looking at a new power supply.


Edit: Just saw your picture, yeah, use that, should work fine.
 

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Ok I found the box with cables, it turns out they are 12pin -> 6 and 6+2...

Umm, lets get this right, you have 1x8pin connector on your video card ?

This picture of a cable you posted is a different cable ?

If both i would of thought the 12pin plugs in t o the PSU and you just plug in the other 6+2 in to the video card.
 

synectic

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Umm, lets get this right, you have 1x8pin connector on your video card ?

This picture of a cable you posted is a different cable ?

If both i would of thought the 12pin plugs in t o the PSU and you just plug in the other 6+2 in to the video card.

There are 2x8pin connections on card. The cable is 12pin to 6 and 6+2.
 

synectic

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It is meant to indicate the maximum power draw:
PCI Express slot: 75w
6-pin: 75w (3+ and 3-)
8-pin: 150w (3+ and 5-)

Your card, according to the standards, could draw up to 375w. Realistically, it will never get close to that but it is important to have a power supply that can handle that kind of load. Your 1000w should be able to but it may have been manufactured before they started pushing out 8-pin cards, hence only having 6-pin connectors. They designed 6-pin to insert into 8-pin for this reason. If the 6-pin truly couldn't handle 150w, they wouldn't have made it backwards compatible.

It should be okay. If there isn't adequate enough power, the card should display a message on boot. If the PSU fails to provide enough power under load, you'll start seeing stability issues. If either occur (and I highly doubt they will), you'll likely need to be looking at a new power supply.


Edit: Just saw your picture, yeah, use that, should work fine.

Thanks, I will give it a try. If there are any issues, what power supply would you recommend (just incase)?
 
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