I got the Space Marine Career Path off of Dark Reign (the supplement contains a DH Career Path for Adeptus Astartes) and I can't seem to find the information in there for what the SM's extra organs do.

They have Traits to activate them over the 1st 2-3 Ranks, but I can't seem to find the descriptions of the Traits themselves, and was wondering if anyone out there knew where in the supplement they are, or whether rules have been written for them at all.

If they haven't been written, is there anyone that can suggest rules for each of the organs please.

All I can suggest is check out Deathwatch, since it has all those rules in it.

If its the same edition of hte PDF I have on that subject, you can find your answer on page 7, on table 1-1: Space Marine Implants. In general, each activated organ gives you a new talent or bonus.

Its true Deathwatch has its own (which I guess is the official rules) system for the organs, the dark reign PDF IMHO is vastly superior, more flexible and less annoying. Mainly because it was written to work with Dark Heresy. But the PDF is outdated and will not match the newer material that is out now or will be released at later dates, so you might want to get Deathwatch anyway and upgrade to that system for those reasons.

We use the updated rules for our DH games anyway. Like the shift in psychic powers (we just got rid of overbleed and abandoned minor powers) as well as a few other things.

DH needs an update!