As far as I can tell, what is most important is which batch of Hawkboard you happen to have.
By all accounts I've found, that first-original batch of Hawkboards simply work fine.
The OMAP chip has text on it which says "XOMAP" on the original "good" batch.
As best I can tell, the later batches of Hawkboards used some different parts, including
a newer OMAP chip, and there have been loads of reported problems with boards
from those later batches.
Again, as best I can tell, the first-batch worked and the later batches were hit-or-miss
and often unstable or selective about which version of code it would
function properly with.
I purchased 6 Hawkboards from the later batches and found all of them had a variety of
weird and un-stable problems. After digging into the schematic I found several things
I did not like. I made about 13 modifications to each of my boards and they now
appear to be perfectly stable.
(One board had a dead power chip, but I replaced that and it's now fine.)
So, the best advice I can offer is to look closely at your OMAP chip with a magnifying glass
or microscope and see what lettering is on that chip. If it says "XOMAP", then it should be
fine (assuming it has not been abused somehow), but if not, then maybe we should talk
about what I did to "fix" my Hawkboards.