Thanks Robert, you may well be correct, I purchased as a1.4 board but it was the version 2.0 which turned up. I found this description on Bangood
" Product description：
The BIGTREETECH SKR 2 motherboard is a 32-bit 3D printer motherboard. It has added multiple functions based on the SKR1.4 and SKR1.4 Turbo series motherboards, which greatly protects the motherboard and is equipped with various types of expansion interfaces."
Thanks for the tip I’ll see if the suggestion works.
All the best
Alan