Hardware error just happen and are a totally normal part of mining. It is not uncommon to see one board with a bunch more than another, it might have a weak component somewhere. Unless you are seeing 10-100x the errors on one board versus the others I really wouldnt worry about it too much. In the end, there is literally nothing you can do to fix it unless maybe you have a firmware that allows you to underclock the boards.
Thanks for the reply, fanatic26. I appreciate this. I'm new to mining and find it very interesting. I'm just learning the ropes now and I guess slightly paranoid about HW errors or anything I may do that would prematurely cause problems to my miner. Please share any other helpful tips for better maintenance and upkeep if and when you have time.
Cheers.