What model of SAS card was installed and in what PCI slot ?
We have a Dell r720xd server and we are try to extend storage on server using new PowerVault MD1200 containing the 12 2.5" disks. The problem is when we install SAS Card to the PCI Slot, server didnt load up successfully and stuck on the below error. We tried replacing with new SAS Card, new Riser Card and even the motherboard. But server stuck on the below screen. The moment you take that SAS Card out, server looks good and boot fine. Please suggest to proceed. ================================================================================ 
Unable to install new SAS Card in PCI Slot on Dell r720xd