Dell GX270 Motherboard NG652
The GX270 motherboard was BAD. Recalled even due to problems.
Dell doesn’t have them anymore. If you have one in warranty, then good luck.
There are a couple of ways to get them. One is ebay, but they are probably bad units.
Merrill Technologies and Fox Micro have them, but at nearly the cost of a new computer.
$275 for a System board. Ouch.