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Are there any Graphics cards for one 8 pin pci-e cable?

Last response: in Graphics & Displays
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April 9, 2012 1:04:24 AM

Uhm, ive got a corsair cx430 v2 and it has a 6 + 2 pci-e cable. is there any graphics cards that even use just one 8pin? just curious..
a b U Graphics card
April 9, 2012 1:12:07 AM

i don't think so, most of them uses 1 8 pin + a 6pin. so 8pin would fit normally and you could use a Molex to pci adapter to plug the other 6 pin of course if the PSU can handle the video card.
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a c 76 U Graphics card
April 9, 2012 1:44:18 AM

and as 6 pin is 75 Watt, and 8 pin is 150 Watt you really would want to do that with that PSU.

Most GPUs use 2 6 pin connectors to get to 150W, instead of an 8 pin, because of all that multi 12V rail BS that went around. You should be fine using a 2 6 pin card with an adapter though as that would only be a 150 Watt card
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April 9, 2012 2:53:51 AM

unksol said:
and as 6 pin is 75 Watt, and 8 pin is 150 Watt you really would want to do that with that PSU.

Most GPUs use 2 6 pin connectors to get to 150W, instead of an 8 pin, because of all that multi 12V rail BS that went around. You should be fine using a 2 6 pin card with an adapter though as that would only be a 150 Watt card


Hmmm can you recommend me anything? i was looking at the 6850 but i dont know if thats the best my psu can handle..
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a c 175 U Graphics card
April 9, 2012 5:45:21 AM

i think your psu should be able to handle a 6850.
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a c 79 U Graphics card
April 9, 2012 5:58:18 AM

afaik, right now, a radeon hd 7850(reference design) with 130w tdp (max power i think, is 150w - pcie 75w and 6 pin - another 75w) is the most powerful card that requires only one 6 pin pcie power connector. that distinction was previously held by radeon hd 6850. cards like radeon hd 7770, 6770/5770, 6750/5750 also use single 6 pin pcie power connector. i don't know of or haven't noticed any card with single 8 pin pcie power connector.
gfx card choice depends on the rest of your pc components. if they take up too much of the amperage, you'll have to use a lower powered card.
edit: a card using single 8 pin peg connector will have 75+150=225w tdp max. most of the cards at that tdp uses 2x 6 pin peg connectors (75+75+75=225w).
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a c 105 U Graphics card
April 9, 2012 6:02:12 AM

this isn't one of those "my PSU has an 8pin so I need to use all 8" because I don't understand that I don't really need to use all 8 pins when 6 will do fine threads is it.
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