Modular 6+2 pin only has 6 pins going INTO the PSU.

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Z

Zerothian

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May 14, 2013
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So I am just wondering about this. My PSU is a Corsair TX850m https://www.overclockers.co.uk/showproduct.php?prodid=CA-054-CS <PSU Link.
I have just ordered a Saphire HD 7970 and it requires on 6 pin and 1 8pin power connector. With the PSU came a 6+2 pin connector however, there are only 6 pins on the PSU side of the cable as in, the end that plugs into the PSU has only 6 pins. there are 8 pin slots on the cable itself but the last 2 are just empty plastic holes. the other end is a standard 6+2 pin.

Just wondering if this is normal and if it is safe to run my card with this cable or not as I don't fancy a £300+ paperweight.
 
Solution
manofchalk
The extra two pins on an 8pin PCI-E connector over a 6pin connector are grounding wires, don't know the electronics myself but it allows more power to run through it. While obviously those two extra pins don't seem to have a dedicated wire to the PSU, I would assume Corsair just connected them to the pre-existing ground cables in the 6pin connector and upped their gauge (thickness of the wire) to compensate for the additional load.

You should be fine, though IMO it reflects badly on Corsair that the design raises these kinds of concerns.
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manofchalk

manofchalk

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May 11, 2012
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The extra two pins on an 8pin PCI-E connector over a 6pin connector are grounding wires, don't know the electronics myself but it allows more power to run through it. While obviously those two extra pins don't seem to have a dedicated wire to the PSU, I would assume Corsair just connected them to the pre-existing ground cables in the 6pin connector and upped their gauge (thickness of the wire) to compensate for the additional load.

You should be fine, though IMO it reflects badly on Corsair that the design raises these kinds of concerns.
 
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Solution
Z

Zerothian

Honorable
May 14, 2013
16
0
10,520


yes, I had read a few threads saying the extra 2 were simply for grounding. I was just confused due to the extra spaces that were seemingly unfilled for some reason. I will attach a picture of the cable for reference. This should be good to use as the 8 pin? http://puu.sh/2Tj4s.jpg

Off topic: the iPhone 4's camera is actually pretty damn good. Pleasantly surprised at how well it performs for close up shots.
 
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manofchalk

manofchalk

Glorious
May 11, 2012
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Should be fine, Corsair would have done considerable Quality Assurance to make sure that the PSU's work without issue, especially given their reputation for quality products.
And if something does go kaput after a while, well you have one potential cause and manufacturer to get compensation from.
 
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