A service board is some internal part, like a carberator, however I don't believe it performs the same function, so my analogy ends there. Mr. D works in the computer business, which is how I know so much (and have great tech support). Meanwhile, while I wait for my new laptop I read The Girls of Atomic City which I recommend heartily.
I also took a long walk around the fields yesterday and discovered:
a missing glove
Jax's collar and dog tags (which disappeared months ago)
one of the Easter eggs the neighbors hid for their grandchildren to find. Still had candy in it, too.
In closing, I am convinced that laptops rule and iPads drool.