Not able to start X session on Red Hat Enterprise Linux 6.3

Issue

Not able to start X session on Red Hat Enterprise Linux 6.3 after power failure.

• Updated the system prior to power failure.
• Using NVidia drivers.
• Error in /var/log/Xorg.0.log:

[    29.050] (II) LoadModule: "nvidia"
[    29.050] (II) Loading /usr/lib64/xorg/modules/drivers/nvidia_drv.so
[    29.051] (II) Module nvidia: vendor="NVIDIA Corporation"
[    29.051]    compiled for 4.0.2, module version = 1.0.0
[    29.051]    Module class: X.Org Video Driver
[    29.051] ================ WARNING WARNING WARNING WARNING ================
[    29.051] This server has a video driver ABI version of 13.1 that is not
supported by this NVIDIA driver.  Please check
http://www.nvidia.com/ for driver updates or downgrade to an X
server with a supported driver ABI.
[    29.051] =================================================================
[    29.051] (EE) NVIDIA: Use the -ignoreABI option to override this check.
[    29.051] (II) UnloadModule: "nvidia"
[    29.051] (II) Unloading nvidia
[    29.051] (EE) Failed to load module "nvidia" (module requirement mismatch, 0)
[    29.051] (EE) No drivers available.