how can i test my Routerboard and mini pci , ...
for example i have a link and one radio in this link has some problems. do we have a solution or option in Mikrotik for hardware testing or not ? or any way for testing my mini pci and Routerboard ...

if you need this feuture too , plz ask mikrotik to add this feature in next version .

mikrotik plz !

Yes, some sort of MemTest or WifiTest that we as customers could do would be nice. We understand it would take too long for them to run 2 hour tests. I would be glad to have the option on my end.

What exactly seems to be the problem ? Take one end of the link, replace radio card, see if it helps. If not helping, replace routerboard. If still no cookie, do that on the opposite side, if still no cookie, check antennas and cabling. There will never be any magical button of "tell me where the problem is".