Re: 0551/0553 rack back panel

[CRPence <CRPbottle@xxxxxxxxx>]

  I am not sure, but perhaps that could be the rear door "optional 
acoustical treatment to reduce the noise emissions from the rack" as 
noted in the Site Preparation and Planning Guide:
http://www-1.ibm.com/support/docview.wss?uid=isg2pcb4b0793a26dcaee852572e3002f8c0&aid=1

  Part assembly diagrams for 0553, ...:
http://publib.boulder.ibm.com/infocenter/systems/topic/iphau/pa7014.htm

  Since as I recall doors are shipped unattached\unmounted, I doubt 
what is described had served to hold things in place behind the door 
during shipping.  It could be that what is described is instead used to 
protect the doors in their off-the-server shipping.

Regards, Chuck

Jones, John (US) wrote:
> There's a vertical metal plate with inward-facing foam on the back
> door panel of our racks. It covers roughly the center third of the
> panel. Anyone have an idea what purpose it serves? Seems to me it
> just restricts some airflow. The back of our rack it rather warm &
> I'm wondering if the airflow would be better and system temps would
> be lower if that panel was removed.
>
> We haven't had any thermal warnings, which implies I'm ok to ignore
> it. But it bugs me.
>