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Author Topic: 8 x PCIe power connecotors - how  (Read 1584 times)
vivithemage
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July 07, 2011, 01:26:26 AM
 #1

What's the best way to do this? Most PSU's only come with 4, and my 4x5830's need 2 each.

What are most people doing to make this work with one PSU?

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cryptomint
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July 07, 2011, 01:29:28 AM
 #2

Molex -> PCIe adapters. Your cards most likely came with some.
vivithemage
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July 07, 2011, 01:36:05 AM
 #3

I have never seen cards come with molex to PCIe.

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Jack of Diamonds
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July 07, 2011, 01:43:47 AM
 #4

He's right, they only come with older cards. I got a bunch with 5830's, but never with anything more recent than those.
Even then it's manufacturer specific. Diamond could give two, Club3d/sapphire one, and others either one or nothing.

Newer cards just have 2x6pin to 8-pin adapters.

You could see if Cablesaurus sells them, though.

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jme621
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July 07, 2011, 01:44:04 AM
 #5

I have never seen cards come with molex to PCIe.

my 5830s came with 2 each i think, off to check the boxes i go

edit: yep 2 adapters in each box i am assuming since the first box had two in it. its even in the pics at newegg now that i went there and checked also

Auspician
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July 07, 2011, 01:45:44 AM
 #6

I use a shielded version of this that I picked up locally.  

If you need 8 pin adapters its just as easy to adapt one 6 pin to one 8 pin.  Since the other two pins are merely grounds it doesn't make a difference if your PSU's rails can support the output needed.
IlbiStarz
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July 07, 2011, 02:00:45 AM
 #7

He's right, they only come with older cards. I got a bunch with 5830's, but never with anything more recent than those.
Even then it's manufacturer specific. Diamond could give two, Club3d/sapphire one, and others either one or nothing.

Newer cards just have 2x6pin to 8-pin adapters.

You could see if Cablesaurus sells them, though.


That's not completely true. They don't come with "newer" cards because the more recent cars use 8 pins. Any card uses 6 pin should come with the adapter.

It's better to be pissed off, than to be pissed on.
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cryptomint
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July 07, 2011, 02:06:51 AM
 #8

I have never seen cards come with molex to PCIe.

I've seen them every time I've opened up a new 5830, 5850, 5870 from various brands.
vivithemage
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July 07, 2011, 02:11:56 AM
 #9

I have never seen cards come with molex to PCIe.

I've seen them every time I've opened up a new 5830, 5850, 5870 from various brands.

Good to know, i'll use those Cheesy

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July 07, 2011, 01:25:36 PM
 #10

My Vertex 3D (it's made by Powercolor) HD 6850 came with no molex -> PCI-E connector, but both of my Sapphire HD 5850s came with 2 each.
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July 07, 2011, 08:40:04 PM
 #11

I've seen them every time I've opened up a new 5830, 5850, 5870 from various brands.
Yeah, I think the last $109.99 5830 I got from NewEgg had them.

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vivithemage
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July 07, 2011, 08:47:51 PM
 #12

Do I need dummy cards for the other video cards that are not running on xfire? I have this mobo :

GA-990FXA-UD3


https://www.amazon.com/dp/B0055QYKQO/ref=as_li_qf_sp_asin_til?tag=vivithemageco-20&camp=0&creative=0&linkCode=as1&creativeASIN=B0055QYKQO&adid=0DY1SXRBD08MD77X1HN5&

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Mousepotato
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July 07, 2011, 10:18:33 PM
 #13

Do I need dummy cards for the other video cards that are not running on xfire? I have this mobo :

GA-990FXA-UD3


https://www.amazon.com/dp/B0055QYKQO/ref=as_li_qf_sp_asin_til?tag=vivithemageco-20&camp=0&creative=0&linkCode=as1&creativeASIN=B0055QYKQO&adid=0DY1SXRBD08MD77X1HN5&
No, not with the 11.7 drivers.

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vivithemage
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July 08, 2011, 12:39:21 AM
 #14

sweet Smiley

Where can I get 11.7?

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xtoro
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July 08, 2011, 07:27:31 AM
 #15

Actually, I bought an XFX 6850 brand new and it came with nothing, no cables, no adapters.  Just the card, a CD and instrution manual.

XFX fail

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July 08, 2011, 09:43:09 AM
 #16

My cards never came with an 8 pin power adapter, and local store didn't sell them.

I tried powering it with 2 pin connections, instead of the required 6 pin + 8 pin, and seems to work fine.
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