Resolved SCCM 2012 R2 - Site server computer account administrative rights failed

This is the second error I received while installing SCCM 2012 R2 (Prerequisite check). 

Site server computer account administrative rights failed.

Configuration Manager Setup requires that the site server computer has administrative rights on the SQL Server and management point computers.

Referance: https://technet.microsoft.com/en-in/library/hh368980.aspx
In my lab I have separate machine for Sql server and separate Machine for SCCM, To resolve this you will have to add SCCM computer account in SQL server Administrators Group.

Open Computer management, go to configuration>Local Users and Groups> Group> right click Administrators> click add, then in Objct types select Computers, and Enter the SCCM computer name and click ok.

Other Errors Resolved
Resolved SCCM (extadsh) Schema Extension Error code 8224 and 8202
Resolved SCCM 2012 R2 - BITs Installed/Enabled Warning & Microsoft Remote Differential Compression (RDC) library failed
SQL Server security mode Warning and SQL Server process memory allocation Warning - SCCM 2012 R2 - Resolved 
SCCM 2012 R2 Prerequisite failed (USMT, Deployment Tools, Windows PE) resolved
Resolved SCCM 2012 R2 - Site server computer account administrative rights failed 

WSUS on Site Server - Warning SCCM 2012 r2 prerequisite resolved

Once this step is done, on the click Run Check (On SCCM Server you will see this failed check is no longer there) .