Hi,
The Lincs motherboard (MB) CPU upgrade options can be reviewed at this (Link).
The Rother MB can be reviewed at this (Link). Either MB is used in a 690-0000i MB (Link). Look at Product Information then Product Specifications using the third link to find your specific MB.
It looks like you can do a i7-9700.
I would check for a BIOS update but it looks like your MB supports this upgrade using the factory BIOS.
Regards