美国采购需求：CPU散热器、风冷散热器、风扇散热器、液冷CPU散热器、水冷散热器、ARGB散热器

I've been using my unit for about a month now, but yesterday I encountered an issue. The UI is indicating that the display isn't connected or recognized. I've made sure the display is seated correctly—it still shows my chosen display and not the manufacturer's logo. I've also checked the USB header, and it seems secure. Can you provide guidance on what steps I should take next to resolve this issue? Any troubleshooting tips you have would be really appreciated. Thanks!