Comment by GuB-42

AMD's random number generator probably can't generate a 0 ;)

Anyways, I think it is good practice to consider the output of any hardware RNG to be biased and to only use it indirectly as a source of entropy. The actual numbers come from a PRNG, secure of not depending on your needs, that have a guaranteed distribution.

It can still cause problems if badly used, or, ironically fix problems if badly used in a different way.