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PSU Rm1000X, two different PCIe cable in the box?


Coleman
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Hello all

 

My first post here!

 

I have a RM1000X PSU and am currently looking for another PCIe cable.

 

There are 4 in the box, three of them have pin 8 missing on the PSU side, one is fully populated? Why would they be different? 

 

Also, what type PCIe cables does this PSU use? Type 3 or 4, I know the  desc on the website says type 3 and 4 for PCIe can be used between both but stil?

 

I have tried to make sense of the pin outs but tested the pin locations on the GPU side against the PSU side the 

 

Thanks

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If there is an edit on here I cannot see it.. But on the PCIe cables it is pin 4 not 8 that is missing from three of the PCIe cables, one cable if fully populated.

So looks like the ones that come with the  RX1000X are type 3 cables if they have pin 4 missing? (must be old stock as was purchased new only a month ago). But as above, why is one cable fully populated?

I have some corsair type 4 cables from another build, where the PCIe has pin 2 missing? Are these cables compatible? The pins on the PSU in relation to the GPU side do not match up between the two cables. 

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the EPS12V cable (the one for CPU) has 4x 12V and 4x ground. So it's fully populated. that  one is 4 + 4 pin on the other end, where PCIE is 6 + 2

the PCIE cables have 3x 12V and 5x ground.

One 12V pin is missing from the PCIE cables and one ground is doubled. That's normal 🙂 It doesn't matter what pin is missing if it's at the end of a row or in the middle. On the PSU end, the 4 top pins are connected together internally, and the 4 bottom are common too. 

 

The RMx uses type 4 cables but only the motherboard 24 pin cable changes between the two types. all the rest is the same pinout between type 3 and 4 (PCIE, EPS12V, Molex, SATA etc..)

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2 hours ago, LeDoyen said:

the EPS12V cable (the one for CPU) has 4x 12V and 4x ground. So it's fully populated. that  one is 4 + 4 pin on the other end, where PCIE is 6 + 2

the PCIE cables have 3x 12V and 5x ground.

One 12V pin is missing from the PCIE cables and one ground is doubled. That's normal 🙂 It doesn't matter what pin is missing if it's at the end of a row or in the middle. On the PSU end, the 4 top pins are connected together internally, and the 4 bottom are common too. 

 

The RMx uses type 4 cables but only the motherboard 24 pin cable changes between the two types. all the rest is the same pinout between type 3 and 4 (PCIE, EPS12V, Molex, SATA etc..)

 Hello

Thanks for the response.

I found some pinout diagrams online after I posted and realized the above, one row of 4 ground / 4 12v, the pin config then made sense.  

Same story for the fully populated one being for the CPU after I took another look at my PSU.

Serves me right for jumping the gun, but appreciate the post.

Cheers

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