thanks again for your reply I'll tell you I first checked the cable header connection direction as you checked, and even the colors of the wires listed I checked while adjusting, so there is no problem with the cable header connection. Next, the existing Dell cable The pin width is different from msi's motherboard. It doesn't fit, so 2 USB2.0 9 pins Purchased and connected The Molex 4-pin connector works well with power. confirmed that it is connected previously connected to the board. 2 pin hard base The cooler fan in the part worked well, so the power of this board There would be nothing wrong. keep trying but In order to maintain Dell's proprietary technology rights as we progress, it is ensured that external motherboards are not compatible. getting stiffer But it's plain without LED lighting Watching area-51 hurts my heart Now, the next thing to try is to insert a needle into the existing usb2.0 9-pin cable.  I made a temporary connection by drilling a hole for use, so the last 9 pins and 10 pins have no choice but to be connected, so I am trying to connect them precisely with fio 2 pin jumper cables However, the last pin is often a useless pin, so it does not have a big impact.  I don't think so, but First of all, I think it is important to recognize this USB device without any problems in Windows Device Manager, so I will try it. thank you again  
Hello, I recently found area-51 r2, a third-party brand motherboard. After seeing the post that the replacement was successful, I decided to try it. In conclusion, it is only half successful. I replaced msi's b550 mag motherboard and amd's 5800x3d CPU,and the parts were recognized andoperated There was no problem but I lost fxlight I will attach a picture [IMAGE] When the power is turned on, only the front panel vertical line light is turned on. Even lit lights don't look like normal colors In the discussion here, looking at the cases of successful replacement with area-51third-party brand motherboards, I know that the left and right chassis are normally lit through a separate command center bios hack work,but the front panel vertical line light and alien head power I know that the light turns on normally only by connecting a small motherboard in thearea-51 case,but my case is a bit different from others.Again I attach a picture of my little motherboard   [IMAGE]   [IMAGE]I drilled a small hole for a USB2.0 9-pin cable and connected the power and powerindicator pins from an older Area-51 compact motherboard directly to the msi motherboardpower pins. am i doing something wrong? [IMAGE]If I directly connect another leftover usb2.0 9 pin to msi motherboard usb2.0 9 pin cable,all lights turn off. This USB 2.0 pin is simply a pin finder that allows you to use theUSB port on the front?what does it have to do with   [IMAGE] Another one right behind the power light additionally on a small motherboard Are there any jobs you need to connect to? Cables plugged into that little board Headers are dell-specific header pins. and find a compatible cable I can't Even if the light does not turn on, through the command center Install bios hack and try I tried, but commad center fx light item is not recognized Is there something I'm missing, or If there is a solution please reply I'll wait Thanks for reading this long post  
Area-51 FX light does not turn on after replacing msi motherboard