Which method did you try in upgrading your Windows to the latest version? Clean Install or Ingrade Upgrade?
Your Processor should be compatible with the latest Windows version.
Here is Microsoft website showing what Processors are supported by which Windows version: Windows Processor Requirements | Microsoft Docs
I noticed that your motherboard download page has no Windows 10 drivers. The last BIOS update is from 2010. If you were able to install Windows version 1803 then it means you have Windows 10 compatible drivers that works in Windows 10
According to your Motherboard Specs, Your motherboard is compatible with Windows 7 OS:
Try installing the latest version of Windows 10 via Ingrade Upgrade. This is running the Windows 10 Installation setup while on the Windows Desktop. That way if you have any legacy programs it will be included in the new version.
If you tried doing a Clean Windows 10 installation or an Ingrade Upgrade installation, what error did you get?