ReadyNAS Ultra 6

At the risk of seeming rude or snippy, I would have thought that as a board moderator, you have read the post and questions. Verified your answers (i.e. know what you're talking about) and 3rd, re-read your response to see that it doesn't make sense.

1) was so globally generic as to be applicable to just about any memory related question. What I was asking, is if it's specifically utilized by the RAID controller as a read/write buffer.  If no one really knows ... then please, no speculation posed as fact.

2) Fan headers are not hard corded into the OS. Fan "headers" are present or not. However "active speed control" based on thermal loading might be. What I was looking for here was, has anyone plugged into the 3rd fan header closest to the CPU and noted that it was "live"  (i.e. outputs 5VDC), RPMs would be a bonus but I doubt it since there is no 2nd or 3rd fan RPM displays/status in the WEB GUI.

And I would assume that when you said "...its speed automatically damaged." you perhaps meant something like "...its speed automatically controlled." ?  [proof read plz]

 .. And finally your last line, "but it voids the warranty."   Not too worried about this since it’s a device that has been out of production for several years and its warranty/registration is not transferable to a 2nd owner.

. so does anyone know for a fact if the onboard memory DIMM's are utilized for RAID buffering or is this too much to expect out of a consumer based product?

... 2nd had anyone ever plugged a fan into that 3rd fan header closest to the CPU.

On a brighter note, since replacing the thermal paste with new, quality paste, and the addition of a small fan on the heat sink (powered from #2 fan header) the CPU has stayed rock steady at `50c no matter what I ask it to do.