Question Will this power supply cable adaptor be ok?

Aug 14, 2023
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https://ibb.co/R0c6Qkf image of cable.

Hi all, so I just bought a new gfx card as my old one popped, it has an 8 pin and my psu doesn't have 8 pin only 6. I bought a 2x molex to 8 pin as I have free molex as they are not in use but I realised today these are daisy chained. The only thing attached to them at the moment is the case fan you can see off the top of the image.

Will this be an issue? Any more info you need let me know. Thanks.
 
If your PSU has 2x 6 pins you can get an adapter which goes from 2x 6 to 1x 8 pin safely (I got one for an older system which works fine) otherwise your PSU likely couldn't handle the power draw period and needs to be replaced.
Ahh I didn't realise that. I bought a 2 x molex to 8. But you think the 2x 6 to 8 will be OK?

Looking at it one of the 6 is pci one is coming through the molex :/
 
Ahh I didn't realise that. I bought a 2 x molex to 8. But you think the 2x 6 to 8 will be OK?

Looking at it one of the 6 is pci one is coming through the molex :/

Your going to end up with having huge bill if you go down this route. You really cant mess around with power supply. You could spend good amount on cable but end up costing you alot more when computer fails. Please take peoples advice above, do not do it. Brand new PSU will boot up gpu just perfect without having to worry
 
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nO IT'S NOT OK. It's not safe to use adapters.
If your PSU does not have the native connectors for your GPU, you need a new PSU.
Period.
Your going to end up with having huge bill if you go down this route you really cant mess around with power supply. You could spend good amount on cable but end up costing you alot more when computer fails. Please take people advice above do not do it. Brand new PSU will boot up gpu just perfect without having to worry
Oh look 3 people who don't know how PCIe power connectors work. You can completely safely use an adapter that takes 2x 6 pin PCIe and converts to 1x 8 pin PCIe. If your power supply is rated for 2x 6 pin PCIe cables that means it already supports the 150W an 8 pin is rated for and will have appropriate ground/power/sense available. You're only asking for trouble if you're converting another type of power connector over to PCIe.

This is not to say buying a new power supply is a bad idea as the one is question is certainly old (design wise if nothing else), but rather you shouldn't feel the need to do so.
 
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My recommendation results in a fully working system.
That doesn't make you any less wrong. Must be nice to just assume people have money to spend on new equipment they may or may not need when you don't have all the information needed to make that recommendation.
Your recommendation may result in a little mushroom cloud.
You clearly don't have a clue if you think plugging two PCIe 6 pins from a PSU to one PCIe 8 pin is going to kill anything. The only way it would is if the PSU was already bad which again you have no way of knowing.
 
Maybe the power supply is bad and maybe it isn't you don't know anymore than I do. What I do know is that you gave advice based on a false premise and that doesn't help anyone.

What non-junk power supply of a reasonable wattage for a system with a GPU requiring an eight-pin connector that isn't 15 years old doesn't have 6+2 pin PCIE connectors? I've seen shoestring licorice thicker than the anemic ketchup-and-mustard tragedies in the image at the top.

It's like getting a hotel room that doesn't have its own bathroom. Sure, there's nothing theoretically wrong that would prevent a hotel room without a bathroom from being absolutely luxurious otherwise. But if you know a hotel room has a shared bathroom down the hall, you can be damned sure it's not a Park Hyatt or St. Regis.
 
Looking at it one of the 6 is pci one is coming through the molex :/

If your power supply is rated for 2x 6 pin PCIe cables that means it already supports the 150W an 8 pin is rated for and will have appropriate ground/power/sense available. You're only asking for trouble if you're converting another type of power connector over to PCIe.

Maybe the power supply is bad and maybe it isn't you don't know anymore than I do.
The OP had already specifically said that they only had 1x6 PCIe and they were trying to get the GPU power through molex, as in the photo in the very first post.
 
Oh look 3 people who don't know how PCIe power connectors work. You can completely safely use an adapter that takes 2x 6 pin PCIe and converts to 1x 8 pin PCIe. If your power supply is rated for 2x 6 pin PCIe cables that means it already supports the 150W an 8 pin is rated for and will have appropriate ground/power/sense available. You're only asking for trouble if you're converting another type of power connector over to PCIe.

This is not to say buying a new power supply is a bad idea as the one is question is certainly old (design wise if nothing else), but rather you shouldn't feel the need to do so.

If you feel the need to say that we’re wrong then think you should ask op to borrow his psu with his adaptors and test it on your computer.
 
dont forget that his old GPU popped while using molex adapter
My old gpu has just aged out its like nearly 20. No adaptor for that it was 6 pin. I would risk 2x 6 pin to an 8 pin but my power supply is also old. It only has molex daisy chained and 4 pin and 1 x 6 pin. So it's not pcie as we hoped. Only 1 6 pin pcie.

I'm going to get new power do don't argue guys and thanks for all the advice all ways.

Ps power supply is none brand and has been amazing lasting up till now.
 
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I though the only real difference between 8 pin and 6 pin video card connectors is they tell the video card that both the power supply and the cable were rated to carry 150 watts. The 2 extra pins are both grounds anyway so all the power is still carried over the 3 12 volt wires in the 6 pin part of the cable.

Although I would not recommend this for people who think you can just go out and buy random adapters if you really knew what you were doing you could accomplish this. It should all come down to can the power supply actually provide the total watts needed and are the wires of the proper size.

My guess though is someone who comes to this forum and ask questions like this does not have enough background to safely do this. Even I am not brave enough to risk a expensive video card when you can't even trust the specs on very good power supplies.
 
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My old gpu has just aged out its like nearly 20. No adaptor for that it was 6 pin. I would risk 2x 6 pin to an 8 pin but my power supply is also old. It only has molex daisy chained and 4 pin and 1 x 6 pin. So it's not pcie as we hoped. Only 1 6 pin pcie.

I'm going to get new power do don't argue guys and thanks for all the advice all ways.

Ps power supply is none brand and has been amazing lasting up till now.

Most likely you've been lucky. Most drunk drivers don't kill anyone, but that doesn't mean it was safe for those people.