Is this list based on the standard power supply?  I notice the Q8200,8300,9300 are skipped over.

Just copy/pasted what was in the manual... Google for a pdf of the manual like I did, should be a few copies online. Can't remember the details since my post was 3 months ago. :emotion-1:

Actually, pg 10

http://www.dell.com/downloads/global/products/optix/en/optiplex-380-tech-guide.pdf

Well, you asked if based on a regular power supply... I'm simply answering that I got the list from the manual. All I know is what the manual told me, beyond that I have no idea.

Maybe a power supply issue, maybe a BIOS issue, maybe the manual was printed before those processors came out... no idea. Sorry.

Tom's Hardware Guide forum is usually pretty good for answers like that... as you can see from the thread here, I eventually had to answer my own question. You're the only other person that posted in this thread in the 3 months it was here. :D

You misunderstood my question.  I'm wondering why you can't use those. I read the list, which is how I know they weren't included.

I suspect that it will run any of the processors in this list for the G41 chipset and that the processors listed in the manual are simply the ones Dell chose to validate on the 380 (only ever shipped with or was offered as an upgrade through Dell):

http://ark.intel.com/products/36528/82g41-graphics-and-memory-controller-hub

That makes sense to me,  Thanks,