I have a dual Xeon Xserve, and a nagging issue. The Xserves have 2 small 8 LED arrays on the front, which show real-time cpu utilization (one array per CPU). Under Lion, these LED's would not become active until after you installed the Server.app. Currently under Mountain Lion, these LED's do not work at all, regardless if the Server.app is installed or not.
I figure that there has to be a way to see, or find out what in the Lion Server app is enabling these (a kext or something perhaps?), but I cannot figure it out. I tried comparing the system installed Kexts (/System/Library/Extension) before and after the server.app install, but did not find any new kexts.
Does anyone happen to know, or can provide any assistance in a way to dig down deeper on this? I know its not a show stopper, but its one of those things thats bugging me and I cant stop thinking about it.