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x870E crosshair hero 8 pin pcie power plug LED glowing red all the time

Vasoka
Level 7

As title, I have a 4090 RTX gigabyte gaming OC and a titanium seasonic 1200w PSU together with the motherboard from the title. That little red led light which, according to the manual, is showing that the 8 pin connectors aren't plugged to the GPU (?) is glowing all the time, while it doesn't glow for friends who have similar / same boards. I tried swapping the GPU, still glows. Tried replugging cables, still glows. It glows even when the card is not plugged in the computer, it glows when the PC is off as well. Here's a picture of which led I mean. 

I tried swapping the GPU to a different PCIe slot (the lower one) in case this one is busted, light still on. I'm using the 6060 bios if that matters. I'm at my wit's end.

 

 

led.jpg

UPDATE:

I actually just googled the board and can see that light glowing on the image here as well on the top. Is this supposed to glow by default? Why does the manual say it means no power to the GPU?

https://www.tomshardware.com/pc-components/motherboards/asus-rog-crosshair-x870e-hero-review

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11 REPLIES 11

Katana1074
Level 11

Hi, I have the same board.....

From the manual :

Screenshot 2024-12-29 101359.png

So the light will stay on until you connect an 8 pin Pcie cable like so...

20241229_101632.jpg

Regards...

It is kinda impossible to power that if you are using a 24pin Strimmer from Lian li. There is not enough space to fit the cable in there. I am using the Wireless version of the 24pin from Lian li...

yeah but the strimmers look cool though😎

Hey, did you find any solution to use 24 pin lian li strimmer and connect the 8 pin pwr pcie?

Yes.  I did get a cable and plugged it into the MB.  I don’t know if it has any effect on my configuration but that irritating red light is gone. 

I have the cable but I am unable to connect it as I am using lian li strimmer 24 pin cable. Its blocking the 8 pin pwr

boedzals
Level 9

The LED lights on indicating that you do not connecting PCIE 8 pin power cable to the PCIE_8PIN_PWR connector. Just like said in the manual

Screenshot 2024-12-30 001309.png

The power connector is used to power the USB 20 Gbps Type C Front panel connector. So you don't get that speed or (might be) fast charging capabilities if you're not plug the connector

Screenshot 2024-12-30 001345.png

 

Larry47
Level 7

Can someone give a part number for this cable and where to purchase it?  It was not provided with my x870 crosshair mb or my power supply. 

There is no way your power supply does not provided the cable, it's the usual (old) 8 pin power cable to power up your GPU/VGA, otherwise how can you power your GPU/VGA.

The real questions is, not whether the PSU provide it, but do you have enough cables. Chances are you might be using them to power up you GPU/VGA

There is a Molex to 8 pin Or SATA to 8 pin Adapter that looks like the image bellow, but i wouldn't recommended using that, unless you really run out all the 8 pin cable 

61VIbIGJRPL.jpg

I15516894-500x500-0.jpg