Power Edge R720xd - PCIe Degraded Link Width Error

Hi,

We are having a brand new Dell Power Edge R720xd server in site.During the boot up it gives an error saying "PCIe Degraded Link Width Error:Integrated RAID, Expected Link width is x8 ,Actual link width is X4" Strike F1key to continue. Could anyone please help to resolve this issue..?

Thanks in Adavance..

Regards,

Aneesh