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6 Pin to 8 Pin

Last response: in Graphics & Displays
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September 18, 2010 7:26:07 PM

I am looking into buying a GTX 480, but it has a 8 pin connection and a six pin connection. However, my PSU only has 2 6-pin connectors. Can I purchase a 6pin to 8pin adapter (like this http://www.pcpower.com/accessories/6-to-8-pin-adapter.h...) so I can use the card? Also, will this effect proper card voltage and performance?

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a c 1415 U Graphics card
September 18, 2010 7:49:52 PM

Yes you can use a 6pin to 8 pin adapter, If the PSU is big enough, watts and amps +12 volt rail, it will not affect performance.
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a b U Graphics card
September 18, 2010 8:23:23 PM

The extra 2 pins on the 8-pin are grounds, so if your PSU is beefy enough in the first place, you'll be fine.
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September 18, 2010 9:44:15 PM

This is my power supply:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I know you're probably concerned, saying, "but phasmantis! you already have a 6+2 pin connector!" Unfortunately, the one I have must be an earlier revision, because I do NOT have a 6+2 pin, only two 6-pin connectors :( . I feel like this should be beefy enough though.
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a c 1415 U Graphics card
September 18, 2010 11:10:24 PM

That will run it no problem.
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a b U Graphics card
September 18, 2010 11:20:06 PM

Did you see the picture on that psu, it identifies, what is running on what 12v rail.
You would want to put the adapter on the pci-e cable thats on a rail by itself.
The other one shares a rail with the cpu. Thats helpful it being labeled, even if most can't use that information :) 
http://www.newegg.com/Product/ImageGallery.aspx?CurImag...
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a c 1415 U Graphics card
September 19, 2010 12:52:45 AM

About 15% in favor of the 480
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a b U Graphics card
September 19, 2010 1:00:53 AM

This is really a arbitrary choice. How much fun can you afford ? Theres still 70.00 difference between them. IMO, your not paying just for the o/c with the 470, but a aftermarket quality cooler. I'd go with the 470.
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a c 217 U Graphics card
September 19, 2010 2:38:53 AM

Have you check all the cables that came with the PSU to see if it also came with a 6+2? If no, you should be able to buy a cable that plugs directly into your PSU that has 6+2, so there is no adapter envolved.

I believe I've seen 6+2 cables at Fry's that can plug directly into your PSU.
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a b U Graphics card
September 19, 2010 2:55:02 AM

phasmantis said:
Okay, so now I am in a pickle. I'm stuck between this http://www.newegg.com/Product/Product.aspx?Item=N82E168... and http://www.newegg.com/Product/Product.aspx?Item=N82E168.... They both have the same clock speeds, smaller bit, but how big a performance difference do you think it would be?


A side note on those selections -- Did you happen to notice in the pics they both come with adapters for 2 molex to an 8-pin PCI-e connector included !! ( so no need to buy an adapter)
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September 19, 2010 3:06:56 AM

notty22 said:
This is really a arbitrary choice. How much fun can you afford ? Theres still 70.00 difference between them. IMO, your not paying just for the o/c with the 470, but a aftermarket quality cooler. I'd go with the 470.


I'm just afraid the 470 will die out before performance-wise before the 480. As in, not being able to max future titles like Battlefield 3, Crysis 2, and Red Orchestra 2 (probably though since it runs on the Unreal Engine).

Yes I noticed that, but I was originally looking at the Galaxy gtx 480, which didn't come with the adapter, was only 380 dollars after rebate, and came with mafia2 and just cause 2 for free ;_;, but they all sold out :( .

Also, what kind of speeds would I need out of a 470 for it to run like a 480? I hear people always get the core on the gigabyte 470 to at least 800mhz, and the shader to like 1700, and the memory close to 4000. Think it would match the 480 then?
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