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Does this GTX 1080 has a 8-2x6pin connector

Mac Hammer Fan

Mac Hammer Fan

macrumors 65816
Original poster
Jul 13, 2004
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https://www.amazon.de/gp/product/B0...02ad-5624-9df2-f92699ba03df&pf_rd_i=340843031
51ZiaU0rgOL._SL1200_.jpg

https://images-na.ssl-images-amazon.com/images/I/71SKoCYTQXL._SL1200_.jpg
It's cheaper than the Founder Edition, which is hard to find in Europe.
 
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I guess my 2 6-6pin cables from the Radeon 5870 won't fit here, neither the Y cable delivered with the box.
What is the cable I need to buy? Where can I buy it?
Or can I connect 2 6-6 pin cables to the Y-adapter from the card?
TIA
 
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Mac Hammer Fan said:
I guess my 2 6-6pin cables from the Radeon 5870 won't fit here, neither the Y cable delivered with the box.
What is the cable I need to buy? Where can I buy it?
Or can I connect 2 6-6 pin cables to the Y-adapter from the card?
TIA
Click to expand...

Did you consider directly buying the founders edition from Nvidia their website? The card is cheaper then anywhere else.

https://www.nvidia.nl/graphics-cards/geforce/pascal/gtx-1080/#buy-now

I'm also in the market for a GTX 1080 power consumption a FE 1080 will work but I heard that it can start to throttle, Or is this not the case in a 5,1 when using mac fan to controll the PCIE air flow.
 
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Pandanl said:
Did you consider directly buying the founders edition from Nvidia their website? The card is cheaper then anywhere else.

https://www.nvidia.nl/graphics-cards/geforce/pascal/gtx-1080/#buy-now

I'm also in the market for a GTX 1080 power consumption a FE 1080 will work but I heard that it can start to throttle, Or is this not the case in a 5,1 when using mac fan to controll the PCIE air flow.
Click to expand...

With the stock reference cooler, the card will be throttled under full stress regardless of the PCIe fan speed (assume normal room temperature. eg. 20-30C)

However, it really depends on how you define "throttling". The Boost 3.0 will let your card go even higher than the spec boost clock, but once go to that clock speed. The voltage will also be increased. Then the GPU warm up to 85C, and the voltage decrease, and the clock speed go down again.

If you want to stay at the max boost clock speed, you will need a much better cooler, and most likely need some fine tuning of the voltage / clock curve. However, this only available in Windows, not in macOS.

If your "throttling" means drop to below the base clock, then it will never happen.
 
The card won't drop below the base clock, but it seems in reviews that it cannot keep a steady clock while under load. See here compared to a MSI GTX 1080 Gaming X, the founders edition spikes over the whole place where the MSI stays stable. In this test they looped F1 2015 benchmark 17 times to get to a duration of about 30 minutes.

The card is a custom card, so their might be trouble in Mac OS with the webdrivers, does anyone here had this card in their 4,1 or 5,1?

I'm leaning toward this card because it can be find anywhere secondhand.

(article is in dutch: https://nl.hardware.info/reviews/67...g-x-review-de-eerste-custom-gtx-1080-duurtest)

MSI%20clocks%20over%20time.png
 
Pandanl said:
a FE 1080 will work but I heard that it can start to throttle, Or is this not the case in a 5,1 when using mac fan to controll the PCIE air flow.
Click to expand...

I am not running into throttling issues in an authentic 5,1 with a GTX 1080 FE (non-EFI/not flashed). Not using fan control or anything extra inside the case. Stock cooling. Powered via dual mini 6-pin to standard 8-pin cable. Use this machine for video and it renders with GPU a lot.
 
Pandanl said:
The card won't drop below the base clock, but it seems in reviews that it cannot keep a steady clock while under load. See here compared to a MSI GTX 1080 Gaming X, the founders edition spikes over the whole place where the MSI stays stable. In this test they looped F1 2015 benchmark 17 times to get to a duration of about 30 minutes.

The card is a custom card, so their might be trouble in Mac OS with the webdrivers, does anyone here had this card in their 4,1 or 5,1?

I'm leaning toward this card because it can be find anywhere secondhand.

(article is in dutch: https://nl.hardware.info/reviews/67...g-x-review-de-eerste-custom-gtx-1080-duurtest)

MSI%20clocks%20over%20time.png
Click to expand...

The card in your link is not quite the same as Flowrider's card. However, I rarely heard MSI card causing trouble on cMP. I believe that's a good option to you if widely available in your place with reasonable price.

Even though that's a 6+8pin card, it's power draw is actually lower than the FE in the review. So, as long as you connect the cable properly. I believe there should be no power issue. And that 6+8 design most likely are for OC.
 
h9826790 said:
The card in your link is not quite the same as Flowrider's card. However, I rarely heard MSI card causing trouble on cMP. I believe that's a good option to you if widely available in your place with reasonable price.

Even though that's a 6+8pin card, it's power draw is actually lower than the FE in the review. So, as long as you connect the cable properly. I believe there should be no power issue. And that 6+8 design most likely are for OC.
Click to expand...

What would be the correct way? 2 x mini-pci 6 pin to 1 x 8 pin and the 6 pin to the extra sata cable in the drive bay or 1 x mini pci to 8 pin and 1x mini pci to 6 pin?
 
Pandanl said:
What would be the correct way? 2 x mini-pci 6 pin to 1 x 8 pin and the 6 pin to the extra sata cable in the drive bay or 1 x mini pci to 8 pin and 1x mini pci to 6 pin?
Click to expand...

The safest way will be

1) dual SATA -> single 6pin
2) dual mini 6pin -> single 8pin

However, by considering the actual power consumption of this card is really low. The following way should be 100% safe

“Dual mini 6pin -> single 8pin” + “single 8pin female -> dual 6+2 pin”

So, no matter the card draw power form 6 or 8pin connector, the “8pin bridge” will still automatically share the loading to both mini 6pin supply.
 
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