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Thread: Corsair RM750i sleeve

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    Default Corsair RM750i sleeve

    Hello fellas, new to this forum and I want to ask your opinion on a matter. I'm currently planning a new build of mine that will include the RM750i, as the title states. Now, I want to make new cables from scratch while keeping the originals intact and here's where my questions come in: I don't plan on including the in-cable capacitors, will it affect the ripple suppression by a noticable margin? Second, there are some 2:1 cables and that awful PCI-E chain cable. Is it difficult for them to be made from scratch? I'm thinking straight 8-pin for the PCI-E since I will be keeping this PSU for the specific project.
    Thanks in advance!

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    The ripple shouldn't be a big issue, it'll be worse but it'll still be good.

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    The 2:1 wires are easy if you use the right wire gauge (18g and not 16g). Use 16g for all the 1:1 wires.

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    Quote Originally Posted by turkey3_scratch View Post
    The ripple shouldn't be a big issue, it'll be worse but it'll still be good.
    Quote Originally Posted by jonnyGURU View Post
    The 2:1 wires are easy if you use the right wire gauge (18g and not 16g). Use 16g for all the 1:1 wires.
    Thank you for the replies guys. Ok, since ripple will still be good that's one down. About the wires, why 16 awg? Corsair uses the same or do they use 18 awg and it's better to switch to smaller diameter?

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    Quote Originally Posted by Dopaaa View Post
    About the wires, why 16 awg?
    Because you don't want to burn the cables.
    The 10A you need in some cases.

    For PCIe you have 2x8pins and that equals 300W. Makes 100W per Pair (in 8pin PCIe you only have three x 12V), wich equals to about 8,4A.
    That's cutting it close with 1.0mm².
    Though the connector limits either way...

    Quote Originally Posted by Dopaaa View Post
    Corsair uses the same or do they use 18 awg and it's better to switch to smaller diameter?
    No, it's worse.
    Because smaller diametre = higher resistance, lower possible current without getting a bit on the red side...
    Thus higher voltage drop, more losses in the cable...

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    Quote Originally Posted by Stefan Payne View Post
    Because you don't want to burn the cables.
    The 10A you need in some cases.

    For PCIe you have 2x8pins and that equals 300W. Makes 100W per Pair (in 8pin PCIe you only have three x 12V), wich equals to about 8,4A.
    That's cutting it close with 1.0mm².
    Though the connector limits either way...


    No, it's worse.
    Because smaller diametre = higher resistance, lower possible current without getting a bit on the red side...
    Thus higher voltage drop, more losses in the cable...
    Wow, nice stuff! Ok, I got an EVGA Supernova 650P2 which will get sleeved as well in a similar way. Will remove the caps and so on. Last time I checked, the cables are 18 AWG as well. Should I switch them to 16 as well?

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    EVGA's wires are 18g because they're cheap.

    You should use 16g unless you're trying to put two wires in one pin. Then you have to use 18g because you can't put two 16g in one pin.

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    I've seen OEM's do PSU>16g>PCIe>18g>PCIe. In your opinion, is that adequate?
    CPU: Core i7 8700k, HT enabled, all 6 cores OC'd to 4.8GHz, Vcore = 1.24v
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    Motherboard: Gigabyte Z370X Aorus Gaming 7
    RAM: 4x16GB (64GB) Corsair Vengeance LPX DDR4 RAM 16-18-18-36@3200MHz, Vdimm = 1.35v
    GPU: MSI GeForce GTX 1080 DirectX 12 with 8GB 256-Bit GDDR5X
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    Yep. If the 18g is at the end of the pig-tail, the cable length isn't long enough to cause an issue.

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    Thanks for the replies! So, I will be using 16 gauge for the 1:1 and 18 gauge for the 2:1 for both units. Should I alter the length of the cables or it is ok? How do corsair and EVGA handle the 2:1 cables at their sleeved sets?

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