I am running into the same problem.  I don't know why Dell is making new servers with old components that can not handle the latest server OS, especially when they have a newer component that will work (PERC S110).  Perhaps they have a lot of older boards on their shelves that they are trying to get rid of. Anyway, I found in another thread that someone used the PERC S100 driver for Server 2008 and it worked for them.  I just tried it out and it is installing, but I'm not sure if the old driver will cause problems with Server 2012 later on down the road of if Dell developers were too busy to test out and certify the old driver with the new OS.  It may be worth it to give it a try, do a search for the following: DELL_MULTI-DEVICE_A05_R294489.exe
I am trying to install Windows Server 2012 on a PowerEdge T110 II that I just purchased.  No software and driver utility disks came with the computer!  When I try to install Windows straight from the OS Install disk it tells me that some drivers are missing however it does not list any specific ones missing to know what is lacking!  The message reads: "A media driver your computer needs is missing.  This could be a DVD, USB or hard drive disk driver.  If you have a CD, DVD, or USB flash drive with the driver on it, please insert it now...."  I read in your Microsoft Windows Server 2012_Installation Instructions User's Guide_en-us document that I needed OpenManage 7.2 which supports installing Windows Server 2012 OS.  I got the ISO of OpenManage 7.2.0 A01 from your website and burned it to a DVD.  I started the computer with this DVD and was able to get to Dell Systems Build and Update Utility.  From there I went to Configure Against Server OS Installation.  It provides a list of supported OS.  Windows server 2008 and 2011 are listed but not 2012! When I go into the BIOS (PERC S100, version 2.2.3) and change the SATA settings to ATA and run OpenManage and go to Dell Systems Build and Update Utility and  Configure Against Server, this time Windows Server 2012 shows up and I'm able to proceed further until it gets to 100% complete and reboots.  I insert Server 2012 install DVD during reboot and it states "Valid Operating system installation media was found.  Press "OK" to start install."  A system Build and Update Utility message appears that states: "The Temporary Partition will be removed.  If an error is encountered during the operating system install, you will need to use the Systems Build and Update Utility to restart the install process."  I press OK and get an Install Windows message that states: "The file "autorun.dll" could not be loaded or is corrupt. Setup cannot continue. Error code is [0xC1]"  I burned the OS DVD from a Microsoft ISO.  I have read that perhaps the DVD needs to be burned differently and at a slower speed.  That may resolve this last issue (don't know yet), but I actually would like to setup this computer in RAID mode anyway and first I need to resolve the following question: 1) Is it even possible to install Windows Server 2012 with Raid Configuration on this hardware?  If yes, how?  The OpenManage-->Dell Systems Build and Update Utility-->Configure Against Server does not list Server 2012 unless the SATA setting is not set to RAID!!! 2) When I configure the same computer with Server 2012 as the Operating System installed on Dell.com's Configure and Buy site, it gives a configuration error that says "Errors: Microsoft 2012 options selected from Operating System require Microsoft 2012 Media." When I pick/check "Windows Server® 2012, Foundation Edition, Media Kit" the error goes away.  Do I need this media kit?  Is this what is causing the issue with the install?  And where do I get this missing component? Any guidance you can give me or reference to appropriate material/docs to help out would be greatly appreciates as I have spent/wasted several days trying to get this server's OS installed!  Thank you.
Installing Server 2012 on PowerEdge T110 II in Raid Mode