help with cable for gpu

[Dk-Rampage]

I have bought a PowerColor Radeon RX 7900 XTX Red Devil Limited Edition - 24GB GDDR6, it requires 3x 8 pin pcie power
I only got this type of pcie cable for my psu
can i just use 2 of them or do i need 3

 

[Latvian Video]

If you use 2, it will complain that all of them arent used and not boot.

[BennyDunk]

Just now, Latvian Video said:

If you use 2, it will complain that all of them arent used and not boot.

My take on OP's question was if he could use one single and two pigtailed 8pin connectors or needs to have 3 separate PCIe cables coming out of his PSU. IF that is the case, then I would say it that one pigtailed and one solo will *MOST LIKELY* be fine. Each one of those connections on your PSU are spec'ed for (up to) 150 watts. The 7900XTX Red Devil's TBP is 355W. So, with <75W from the  PCIe slot, you won't be pulling more than 150W from either 8pin bundle, pigtailed or not. It is borderline though, so IF your PSU does have the outputs, try to use 3 separate cables. 

[Dk-Rampage]

9 minutes ago, BennyDunk said:

My take on OP's question was if he could use one single and two pigtailed 8pin connectors or needs to have 3 separate PCIe cables coming out of his PSU. IF that is the case, then I would say it that one pigtailed and one solo will *MOST LIKELY* be fine. Each one of those connections on your PSU are spec'ed for (up to) 150 watts. The 7900XTX Red Devil's TBP is 355W. So, with <75W from the  PCIe slot, you won't be pulling more than 150W from either 8pin bundle, pigtailed or not. It is borderline though, so IF your PSU does have the outputs, try to use 3 separate cables. 

ok, it's because I'm building a brand new PC
so can I use 2 of them or do I have to buy 3 8 pin pcie cables
what will be best

I have bought this psu phanteks revolt x 1200w

[Dk-Rampage]

58 minutes ago, Latvian Video said:

If you use 2, it will complain that all of them arent used and not boot.

ok, it's because I'm building a brand new PC
so can I use 2 of them or do I have to buy 3 8 pin pcie cables
what will be best

I have bought this psu phanteks revolt x 1200w

[Kitsan]

The most logical fix is to buy another PCI-E cable, try contacting Phanteks.

 

I'm shocked that a 1200W PSU would also ship with only two PCI-E cables.

 

To answer your question directly. It will work fine with two cables, with one occupying two slots. Just don't overclock it/increase the power limit in apps like MSI Afterburner.

[Dk-Rampage]

2 minutes ago, Kitsan said:

The most logical fix is to buy another PCI-E cable, try contacting Phanteks.

 

I'm shocked that a 1200W PSU would also ship with only two PCI-E cables.

 

To answer your question directly. It will work fine with two cables, with one occupying two slots. Just don't overclock it/increase the power limit in apps like MSI Afterburner.

ok i have 3 of those cables but i just wanted to know if i could use 2 or need 3 of them

[Kitsan]

2 minutes ago, Dk-Rampage said:

ok i have 3 of those cables but i just wanted to know if i could use 2 or need 3 of them

Okay, as I mentioned earlier you can use two but I don't know why you would if you have three...

[Blai5e]

@Dk-Rampage -Phanteks wesite says that PSU comes with 4 PCIE cables (all with pigtails - so, 8 connectors in total).

[Dk-Rampage]

2 minutes ago, Kitsan said:

Okay, as I mentioned earlier you can use two but I don't know why you would if you have three...

okay, thank you for the help