Are PCIe power cables different if they are labeled type 3 or type 4?

[frank3422]

So I bought a new graphics card and it turns out it needs 3 PCIe power cables and I only have 2, because I somehow lost the extras that came with the power supply. I pulled a power cable out of an older system but it says type 3 instead of type 4 on the connector. However the pins look exactly the same so I thought maybe since it's just for power delivery it wouldn't matter.

Thanks

 

[piorunz]

Do you have Corsair PSU? From what I gathered, these types are internal Corsair designations.
PCI-E cables have only two physical types: 6-pin and 6+2 pin.

 

[frank3422]

Yep, it's a Corsair power supply, and the older one is also a Corsair. They are both 6+2 pin, it just threw me off because one says type 4 and the other says type 3.

 

[piorunz]

I don't know exactly about Corsair internal types, but general rule is this:

Definitely do not mix and match different PSU model modular cables, even if they are the same manufacturer. Manufacturers love to rearrange pins, from time to time or model to model. Connecting incorrect cable may blow your graphics card.

Either find original matching cables, or get a multimeter and test each electrical connection to determine if cables are the same. If they are the same and pinouts matches exactly, you can use it. If not, you can buy pin extractor to rearrange them yourself.