PowerEdge R720 stuck in BIOS

Hi,

I have a Dell PowerEdge R720 that's won't boot up. It seems to get stuck during BIOS boot.

It turns on and displays "configuring memory" then displays " configuring iDRAC" then stops on:

CPLD version : 103

I've attached a screen shot.

I've taken all the memory out apart from one DIMM.  I can access the server from iDRAC.  If I try and boot into BISO setup or Life-cycle it still stops at the screen attached.

BIOS version is 1.4.8

I'm new to Dell Severs and iDRAC.  I tried to update the BIOS to the next version up but it's sat in the job queue " RED023: Lifecycle Controller in use. This job will start when Lifecycle Controller is available." 

Any help would be really appreciated.