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NZFlmkr

Connecting GTX 1080 using two six pin adapters?

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Posted · Original PosterOP

Hi, I have recently purchased a GTX 1080. This adapter was in the box.

 

Photo 1

 

My last video card was a GTX 970 which requires 14 pins.

 

Photo 2

 

I have these two cables which connect to my power supply and have 8 pins. Six pins and an extra 2 attached to the block of six. The problem is there is only 6 wires that connect at the power supply so the extra two must not be connected.

 

Photo 3 + 4

 

This is what I have set up in order to get power to 8 pins.

 

Photo 5

 

I need to know if this is right or if I will be giving it too much power due to there being two lots of 6 pins going into the adapter? Thanks for your help!

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What connectors does the 1080 you recently acquired have on it & how do they compare to your 970...?


Did you test boot it, before you built in into the case?

WHY NOT...?!

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Just plug the 6+2 pin from the psu into the card. If it’s just an 8 pin version. Do not use the adapter as it doesn’t look like you need it. Especially the way you’re using it. 


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Spare RIg Corsair Air 540, I7 4770K, Asus Maximus VI Extreme, G.Skill Ares 32Gb, EVGA 1080sc & 1060 SSC, Corsair CX850M, Acer KG251Q 1920x1080@240hz 

 

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9 minutes ago, NZFlmkr said:

15941645483761957771317294042309.jpg

If this is the 1080, just connect one of the 'blue ended leads' into where you have the "adapter that came with the card' plugged in & disconnect the spare blue-ended cable from the PSU & store it safely.

 

Just because something comes with a graphics card, doesn't mean you 'have to use it' if your own eqpt. is adequately capable.


Did you test boot it, before you built in into the case?

WHY NOT...?!

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Don't use the adapter, just use one of the PCIE cables that is connected to the PSU.


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WAIT...

I've just noticed that the HX650 leads are 6-pin out (of the PSU) to 6+2 in (to the card); could that mean the 12v feed/rail may be too weak...?


Did you test boot it, before you built in into the case?

WHY NOT...?!

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Posted · Original PosterOP
Just now, Eighjan said:

WAIT...

I've just noticed that the HX650 leads are 6-pin out (of the PSU) to 6+2 in (to the card); could that mean the 12v feed/rail may be too weak...?

Yeah that's what I'm not sure about. And attempting to use 2x 6 pin into the adapter for 8 pin

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Doesn’t matter if it’s 6 or 8. It’s a reference block that’s not gonna clock high anyway. Even when they have cheap 2pins that hang off don’t carry anything with them. Test it both ways, doubt it will matter much. 


Main RIg Corsair Air 540, I7 8700k, ASUS ROG Strix Z370-H, G.Skill TridentZ 16GB, EVGA 1080TI SC Black, EVGA 850 GQ, Acer xG270HU 2560x1440@144hz

 

Spare RIg Corsair Air 540, I7 4770K, Asus Maximus VI Extreme, G.Skill Ares 32Gb, EVGA 1080sc & 1060 SSC, Corsair CX850M, Acer KG251Q 1920x1080@240hz 

 

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3 minutes ago, NZFlmkr said:

Yeah that's what I'm not sure about. And attempting to use 2x 6 pin into the adapter for 8 pin

That said, 'half' of the feed to your 970 was working with the same setup, so you (& I) are probably over-thinking it.

Best bet would be to use the lead that was on 8-pin detail for the 970.


Did you test boot it, before you built in into the case?

WHY NOT...?!

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Posted · Original PosterOP
3 minutes ago, Mick Naughty said:

Doesn’t matter if it’s 6 or 8. It’s a reference block that’s not gonna clock high anyway. Even when they have cheap 2pins that hang off don’t carry anything with them. Test it both ways, doubt it will matter much. 

What's a reference block? Sorry, i'm kind of a novice with this.

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Posted · Original PosterOP
4 minutes ago, Eighjan said:

That said, 'half' of the feed to your 970 was working with the same setup, so you (& I) are probably over-thinking it.

Best bet would be to use the lead that was on 8-pin detail for the 970.

Yeah, not sure if the 1080 will require more power to run though? Your probably right. I can't really damage it by not giving it enough power anyway.

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Posted · Original PosterOP
29 minutes ago, Eighjan said:

What connectors does the 1080 you recently acquired have on it & how do they compare to your 970...?

I was using the two six pin cables plus one of the added 2 pins. The second 2 pin was not connected.

 

20200620_103405.jpg

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It will need more power but that board isn’t the best power wire to supply that power. It’s gonna be limited regardless. just put the side back on and forget about it. 


Main RIg Corsair Air 540, I7 8700k, ASUS ROG Strix Z370-H, G.Skill TridentZ 16GB, EVGA 1080TI SC Black, EVGA 850 GQ, Acer xG270HU 2560x1440@144hz

 

Spare RIg Corsair Air 540, I7 4770K, Asus Maximus VI Extreme, G.Skill Ares 32Gb, EVGA 1080sc & 1060 SSC, Corsair CX850M, Acer KG251Q 1920x1080@240hz 

 

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Posted · Original PosterOP
2 minutes ago, Mick Naughty said:

It will need more power but that board isn’t the best power wire to supply that power. It’s gonna be limited regardless. just put the side back on and forget about it. 

Ok thanks. I will purchase a better cable.

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