Should I bother updating firmware?

Hi, I just picked up a G5 Dual 1.8 PPC, Boot ROM is 5.1.5f0. I noticed that there is a new update 5.1.5.f8. Although it say it's only for uniprocessors, I've read that others who have dual processors, have been able to update. Should I bother updating? Do I really need to? I haven't notice any issues with the G5 so far. But then again, I don't really know what I should be looking for, if anything. The only thing I've noticed is that on start-up I hear the fan do a quick little rev, then the system is quiet. I only made note of that because the G5 I have at work doesn't make a sound, even on startup. But then again, it's a newer dual 2.7.
I've also read that you don't have to remove 3rd party ram prior to updating. Is this true?
Thanks.

I apologize. I did not mean to dis you or your knowledge.
I take it this way, when a vendor offers a firmware revision, it simply makes sense to install it. There are always improvements. I have never had the whine issue and for the most part I'm very happy with my MBP. The call I made to Tech Support was due to the lack of "insistance" on Apple's part on whether or not someone should install this. Also, because the rumor mill was suggesting you NOT install it unless you were doing Boot Camp, which I just did not believe to be the case (again, because a next revision will also include this code). Now, with Apple not saying anything "official" about some of the whine issues et al, it only makes sense to me (and my engineers here) that they would put out incremental updates, because they have had some success in fixing things in the lab, so to speak, and want to see the general users reaction ("Hey, my sound works now!" - that kind of thing.) I have no doubt that Apple has many people scanning these forums all day, simply because they have to. This is a good way to find things. That certainly will not get an official reaction though, and those waiting for that, will just have to wait. Until the whine, for example, is universal (and I don't mean software wise!) - there will be no statement. So, the best "statement" that Apple is making, is by releasing updates.
Bob

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