Question If I use two splitter cables for my gpu that only need 3 of the 4 to be plugged in, can one of the splitters cable hang on the side unplugged?

[Froozty]

Hello! I am thinking of getting the new rx 9070 xt but it need 3 pcie conectors to get power, and my psu only have 2 spots left for pcie connectors, so I will need to use splitter cables, and because it needs 3 pcie I will need to use 2 splitter cables, but that will give me 4 connectors in total, but will it still work if one of the connectors can hang on the side not connectet?

 

[BFG-9000]

Splitters are generally not recommended as it's too easy to overload the wiring, but I have to ask... why two splitter cables if you only need to use one to get three 8-pins?

If you are referring to factory PSU modular Y-cables with two 8-pin connectors on them each, then yes it's normal to leave some of the connectors unused. And sometimes the gauge of the wire is even sufficient to use both of them at once.

 

[Lutfij]

and my psu only have 2 spots left for pcie connectors
What is the make, model ad age of your PSU? If you look around, you'll see that splittes are usually the cause of a fire. To add, if your PSU lacks the right connectors to support your device(s) natively, then you
a| have the wrong PSU for the job
or
b| have the wrong components for the PSU.

If your PSU is modular, then there's a possibility to make a harness negating the need for any splitters.

 

[Froozty]

Splitters are generally not recommended as it's too easy to overload the wiring, but I have to ask... why two splitter cables if you only need to use one to get three 8-pins?

If you are referring to factory PSU modular Y-cables with two 8-pin connectors on them each, then yes it's normal to leave some of the connectors unused. And sometimes the gauge of the wire is even sufficient to use both of them at once.

yes I meant Y-cables I wrote wrong sorry

 

[Froozty]

and my psu only have 2 spots left for pcie connectors
What is the make, model ad age of your PSU? If you look around, you'll see that splittes are usually the cause of a fire. To add, if your PSU lacks the right connectors to support your device(s) natively, then you
a| have the wrong PSU for the job
or
b| have the wrong components for the PSU.

If your PSU is modular, then there's a possibility to make a harness negating the need for any splitters.

I meant y-cables and my psu is a montech titan gold 850w

 

[BFG-9000]

Technically, if the connectors are daisy-chained then the wiring to the first connector should be 16AWG (between the first and second can be 18AWG). If the cable splits off right at the PSU connector then both wires can be 18AWG.

But many PSU manufacturers use 18AWG for everything, which they can usually get away with because even with 4 connectors, there aren't many people who will be pulling the full rated 600w through them. In your case if your card is 304w maximum (and three 8-pins are good to 450w plus the 75w supplied by the PCIe slot, so that's 525w of capacity), each 8-pin only needs to supply 76w (which could nearly be met with a 6-pin PCIe power connector)

 

[beyondlogic]

Hello! I am thinking of getting the new rx 9070 xt but it need 3 pcie conectors to get power, and my psu only have 2 spots left for pcie connectors, so I will need to use splitter cables, and because it needs 3 pcie I will need to use 2 splitter cables, but that will give me 4 connectors in total, but will it still work if one of the connectors can hang on the side not connectet?

the card wont power up it needs 3 seperate graphic card cables. each cable provides 150w.