Is your Nvidia Geforce 210 PCI-E GPU a newly installed card?
If so a new card will over-ride
the onboard card.
To view your xorg.conf you can open it with your text editor to view it.
Look under the section "Device" and it should show you what driver is being used and what it's set to.
I tried setting the onboard card as the preferred card in the BIOS and tried to boot using it but all I get is a blank screen after GRUB.
I'm thinking that's because your Geforce 210 is being seen first maybe (I'm not 100% sure:sorry)
I'd wait for a more experienced
hardware/graphics member to chime in.
In my case when I installed a new graphics card it automatically was set to PCIe in the BIOS.
And the new card took over my on-board Radeon 3100--
Looked up your mobo in case you or anyone needs the spec's-