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PC Building

Robcop
Adept I
‎01-21-2023 06:07 AM

Sapphire 7900 XT nitro+ next gen power cable?

I have the following power supply: ROG LOKI SFX-L 750W Platinum ATX 3.0. Which supports the new next gen PCI-E Gen 5 16-pin Cable. 

The videocard Sapphire 7900 XT nitro+ has three 8-pin connections. 

Can I even use this next gen cable on this card? And can I leave one 8 pin connection unplugged since the cable supports 600 watt power which is more than sufficient.

 

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1 Solution
9 Replies
eebiii
Forerunner
‎01-21-2023 06:21 AM

Or use 3 seperate 8 pin from PSU. You need all 3 plugged in.

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Robcop
Adept I
‎01-21-2023 06:31 AM

I can't use 3 seperate 8 pin since I have this new power supply ATX 3.0 with the Pci-e gen 5 16-pin cable. 

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Robcop
Adept I
‎01-21-2023 06:35 AM

Here is a overview of my PSU

 

https://ibb.co/RzzTnYL

 

eebiii
Forerunner
‎01-21-2023 06:41 AM

Yes, I would get one of those adapter cables, 16-pin to (3) 8-pin. 

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Robcop
In response to eebiii
Adept I
‎01-21-2023 06:47 AM

How? That's a female end. Those 3 don't fit in the GPU.

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Robcop
In response to eebiii
Adept I
‎01-21-2023 07:05 AM

Thanks 👍 But are you sure the 7900 XT is compatible with this new cable? Since they officially said they don't support the new 12 pin cable. 

 

https://www.pcgamer.com/amd-rdna-3-graphics-cards-will-not-use-12vhpwr-power-connector/

 

 

 

I don't want to blow up my graphics card lol

 

 

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eebiii
Forerunner
‎01-21-2023 07:09 AM

Yeah, might want to wait for the experts here but I wouldn't think so. Your graphics card is the one calling for the power. I dont think that cable is just outputting 600w at all times. the card gets the power when it needs it. You just need a big enough power supply to handle all the components calls for power.