GE Frig Inop - Motherboard?

Hi. Quick ?] question. What is the BEST and most conclusive way to determine whether motherbd for GE side-by-side is bad? Too expensive to just buy one to ‘try’ it…

Symptoms: Couple days ago the water/ice dispenser ceased to function – panel lights included. Today lost cooling. Compressor or compressor fan doesn’t run. Mothrbd has no visible issues – burns, cracks, cold solder joints, etc…

Thanks in advance!

There is no test for the motherboard, look on the back of it for burnt solder joints.