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6+2 pin pcie cable same as native 8 pin on seasonic m12?

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Old 07-20-08, 12:32 PM Thread Starter   #1
Brando
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6+2 pin pcie cable same as native 8 pin on seasonic m12?


Here's the power supply I'm looking at for a possible future hd4870x2 with oc'd nehalim quad build. The Seasonic M12 600w
http://www.newegg.com/Product/Produc...82E16817151030
The hd4870 needs an 8 pin but the m12 ps has a 6+2 pin that they started shipping later on. So the question is, is this the same as a real 8 pin pcie? It's not an adapter, it goes all the way to the modular plugin on the power supply. BUT it was originally made for a normal 6 pin pcie wire as far as I know. What say ye?

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Old 07-20-08, 01:00 PM   #2
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its the same thing like the 24pin atx and the 20+4 pin power connectors

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Old 07-20-08, 03:16 PM Thread Starter   #3
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I understand how the plug works, I'm just not sure if theres a difference between this and the 8 pin on a supply that was originally made with an 8 pin in mind. I think they started shipping the 8 pin with the M12's later on.

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Old 07-20-08, 04:14 PM   #4
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no difference, 6+2=8, but if you want to buy one that comes with an 8pin go for it

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Old 07-20-08, 06:22 PM Thread Starter   #5
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Ok thanks I was just curious. I read that the 6 pins supply 150w and the native 8 pins do 300w so it made me wonder how an adapter could magically double the power. Still piecing together the arguments. Opinions seem to differ greatly.

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Old 07-20-08, 06:47 PM   #6
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From what I have read, the two additional wires are only grounds. You could fabricate this yourself if you know what you are doing.

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Old 07-20-08, 07:07 PM   #7
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Quote:
Originally Posted by Surfrider77 View Post
From what I have read, the two additional wires are only grounds. You could fabricate this yourself if you know what you are doing.
what he said ^^

the extra two wires are simply grounds, check em for yourself with a DMM if your a 'need to see it with your own eyes' type of guy. if someone wants to say the native 8-pin connectors supply more power, you can believe want you want...but there is a guy that hangs out at the intersection by my place who says he is jesus christ too, has a name tag and everything

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Old 07-20-08, 08:13 PM   #8
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Kind of off topic, but my PSU, and OCZ has 2x 6 pin connectors. I can get a 6 to 8 pin connector so it would work with a GX2, correct?

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Old 07-21-08, 08:00 PM Thread Starter   #9
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Actually I think it was supposed to be 75w for 6 pins and 150 for 8 pins but I'm not claiming it's right. Just trying to be sure before I spend my hard earned money. It bothers me that there are warnings being shipped with gtx 280's telling people not to use 6 to 8 pin adapters for too long.

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Old 07-21-08, 08:16 PM Thread Starter   #10
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Heres a link with some info that agrees with the 75 vs 150w thing. Dunno if it's right or not it's just there.
http://www.playtool.com/pages/psucon...ml#pciexpress8

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