Replacing fans on ASUS Ryujinn AIO with iCUE - First PC build - help!!

Fireball_Dragon · 18 May 2025 at 20:13

Hi everyone,

I have an ASUS Ryujinn AIO. I replaced the stock fans with iCUE.

The cable from the AIO has been plugged into the AIO pump header on my motherboard (ASUS 870e Hero).

The fan cables go to the iCUE hub.

This leaves my CPU fan header empty, as the fans are controlled by iCUE.

Will I have issues with the BIOS when booting up for the first time (or after).

Will I need to purchase this and connect it from my iCUE hub to the CPU fan header to by pass this?

iCUE LINK System Hub Tach Cable 600mm

This cable is used to connect your System Hub to a CPU_FAN header on your motherboard to allow your system to boot normally.

www.corsair.com

Any help massively appreciated as this is my first build.

Also noted my Corsair HX1000I PSU didn't come with a 6-pin PCIE cable!

Tetras · 18 May 2025 at 20:17

Fireball_Dragon said:
Also noted my Corsair HX1000I PSU didn't come with a 6-pin PCIE cable!

Corsair lists them as 6+2, so you should be able to split off 2 of the pins on a PCIE 8 pin.

Fireball_Dragon · 18 May 2025 at 20:28

Tetras said:
Corsair lists them as 6+2, so you should be able to split off 2 of the pins on a PCIE 8 pin.

Thanks for the quick reply. So essentially, connecting the 6-pin I have to the 8 pin cable supplied, with 2 holes being unoccupied?

Tetras · 18 May 2025 at 20:30

Fireball_Dragon said:
Thanks for the quick reply. So essentially, connecting the 6-pin I have to the 8 pin cable supplied, with 2 holes being unoccupied?

Yeah, but you should be able to literally split off those pins, it is hard to explain, but there are usually clips and you can just unclip or side them off.

Fireball_Dragon said:
This leaves my CPU fan header empty, as the fans are controlled by iCUE.

Will I have issues with the BIOS when booting up for the first time (or after).

It might give you a warning, yes. Sometimes these types of systems have a single pin cable that just provides the RPM.

Fireball_Dragon · 18 May 2025 at 20:33

Thanks again, the cables with the PSU are very confusing. They all appear to have split ends which wouldn't end up being used! So I have an 8pin to two 6+2s on the other end.

I also have a Ryzen 7 9800 x3d which apparently needs a double connection from the PSU to occupy both 8-pin ports on the motherboard. But cannot seem to find that cable with my PSU.

Tetras · 18 May 2025 at 20:36

Fireball_Dragon said:
I also have a Ryzen 7 9800 x3d which apparently needs a double connection from the PSU to occupy both 8-pin ports on the motherboard. But cannot seem to find that cable with my PSU.

Corsair's website labels them as EPS12v. I believe you would have to use 2 independent cables. They are 4+4.

Fireball_Dragon said:
Thanks again, the cables with the PSU are very confusing. They all appear to have split ends which wouldn't end up being used! So I have an 8pin to two 6+2s on the other end.

Yup, this is common!

Fireball_Dragon · 18 May 2025 at 21:09

Tetras said:
Corsair's website labels them as EPS12v. I believe you would have to use 2 independent cables. They are 4+4.

Yup, this is common!

Cheers! So I found the two of the PSU cables, so now I have x2 8-pin PCIE cables going from my motherboard to the PSU.

Still can't find the required cable for the 6-pin

Still have the issue about the CPU fan which is frustrating. Not sure if iCUE was the best thing.. hope I am wowed by the fans, but feeling very lost right now with the build...

Think the only option is to purchase that tach cable from Corsair.

Tetras · 18 May 2025 at 21:19

Fireball_Dragon said:
Cheers! So I found the two of the PSU cables, so now I have x2 8-pin PCIE cables going from my motherboard to the PSU.

PCIE 8 pin and EPS12v are two entirely different things, you can't plug PCIE cables into the motherboard. They're both 8 pin, but they're not the same.

Fireball_Dragon said:
Still can't find the required cable for the 6-pin

PCIE 8 pins can split into just 6, from the 6+2.

Fireball_Dragon said:
Still have the issue about the CPU fan which is frustrating. Not sure if iCUE was the best thing.. hope I am wowed by the fans, but feeling very lost right now with the build...

I'd just leave it for now and see what happens. If the board warns you, you can turn the warning off.

Fireball_Dragon · 18 May 2025 at 22:08

Tetras said:
PCIE 8 pin and EPS12v are two entirely different things, you can't plug PCIE cables into the motherboard. They're both 8 pin, but they're not the same.

PCIE 8 pins can split into just 6, from the 6+2.

I'd just leave it for now and see what happens. If the board warns you, you can turn the warning off.

Thanks again. I think I got the terminology wrong, but the cables I plugged into the CPU/motherboard were labelled both 8-pin and labelled CPU.

I have a cable connected from PSU now to the iCUE unit - (8-pin in motherboard) and 6-pin to the iCUE - but it has all these splitters, not sure if that's normal.

Tetras · 18 May 2025 at 22:26

Fireball_Dragon said:
but it has all these splitters, not sure if that's normal.

You mean that there is one connector left over?

That is normal for a PCI-E 8 pin, since they're often designed with 1x connector from the PSU, to 2x connector on the device end.

Fireball_Dragon · 18 May 2025 at 22:38

Tetras said:
You mean that there is one connector left over?

That is normal for a PCI-E 8 pin, since they're often designed with 1x connector from the PSU, to 2x connector on the device end.

That's it!

So there's a 6+2 / 6+2 at the end of the cable. I've used just the 6-pin... which leaves a 6+2 and 2-pin remaining. Okay to leave them with nothing connected?

Thanks again, it's my first build and although watched loads of videos, it can be little different once you start the build with your own components...

Tetras · 18 May 2025 at 22:41

Fireball_Dragon said:
Okay to leave them with nothing connected?

Yeah, that's fine, just make sure the remaining one can't get hooked up in a fan or something.

Fireball_Dragon said:
Thanks again, it's my first build and although watched loads of videos, it can be little different once you start the build with your own components...

No worries, there's always something that trips me up with a new build, even though I'm not new. Let us know when it is alive!

Fireball_Dragon · 18 May 2025 at 22:46

Tetras said:
Yeah, that's fine, just make sure the remaining one can't get hooked up in a fan or something.

No worries, there's always something that trips me up with a new build, even though I'm not new. Let us know when it is alive!

Thanks!! Much appreciated

Next stop is the GPU... the most exciting and arguably terrifying add!

Tetras · 18 May 2025 at 22:54

Fireball_Dragon said:
Next stop is the GPU... the most exciting and arguably terrifying add!

That's usually the simplest part!

Fireball_Dragon · 18 May 2025 at 22:57

Tetras said:
That's usually the simplest part!

Fingers crossed! It's a 5080, and my first time handling a GPU. And am loving the little freebies ASUS adds(!)

I've already added my 2nd M2 as it sits on the motherboard behind the GPU.

Advice was to add it after installing windows...? But don't think I'd want to remove the GPU once added to gain access to the additional M2 slots :cry:

Tetras · 18 May 2025 at 23:39

Fireball_Dragon said:
Advice was to add it after installing windows...? But don't think I'd want to remove the GPU once added to gain access to the additional M2 slots

You can usually "soft" disable them in the BIOS if that's something you want, but I'd agree 100%, I'd never deliberately plan a build where I had to remove the graphics card again.

This is much more of a concern if the second M.2 has stuff on it, but if both drives are blank, meh, shouldn't be a problem.

Fireball_Dragon · 18 May 2025 at 23:59

Tetras said:
You can usually "soft" disable them in the BIOS if that's something you want, but I'd agree 100%, I'd never deliberately plan a build where I had to remove the graphics card again.

This is much more of a concern if the second M.2 has stuff on it, but if both drives are blank, meh, shouldn't be a problem.

Awesome, thanks!!

Just one other question if it's not too much trouble. But the PSU - Corsair HX1000xi has multiple 8-pin inserts and it says PCIe / CPU above and below these all. Okay to use any of these for CPU/GPU?

And would these cables work for the 5080? https://www.overclockers.co.uk/cabl...wr-dual-cable-kit-for-asus-and-cb-014-cm.html

Thanks again, really appreciate the help!

It' so much nicer speaking to people in forums

Tetras · 19 May 2025 at 00:32

Fireball_Dragon said:
Just one other question if it's not too much trouble. But the PSU - Corsair HX1000xi has multiple 8-pin inserts and it says PCIe / CPU above and below these all. Okay to use any of these for CPU/GPU?

Yeah, many (most?) PSUs have the modular ports that you plug the CPU and graphics card cables into interchangeable, but the device end of those cables is not.

Fireball_Dragon said:
And would these cables work for the 5080? https://www.overclockers.co.uk/cabl...cable-extension-kit-black-blue-cb-00b-cm.html

I'd strongly recommend that you do not use any extension cables with this connector.

Fireball_Dragon said:
Thanks again, really appreciate the help!

It' so much nicer speaking to people in forums

You're welcome!

Fireball_Dragon · 19 May 2025 at 00:33

Tetras said:
Yeah, many (most?) PSUs have the modular ports that you plug the CPU and graphics card cables into interchangeable, but the device end of those cables is not.

I'd strongly recommend that you do not use any extension cables with this connector.

You're welcome!

Thanks again, I literally just edited my reply haha

I saw they were extensions after and was looking at these now: https://www.overclockers.co.uk/cabl...wr-dual-cable-kit-for-asus-and-cb-014-cm.html

Tetras · 19 May 2025 at 00:35

Fireball_Dragon said:
I saw they were extensions after and was looking at these now: https://www.overclockers.co.uk/cabl...wr-dual-cable-kit-for-asus-and-cb-014-cm.html

They're not right for your PSU, but my answer is the same, I'd strongly recommend you do not use any third party cables for the 12VHPWR/12v-2x6.