PERC 6i Memory Error?

Hi,

I have a DELL PowerEdge 2900 III originally arrived with SAS 6i adapter E2K-UCS-61-(B).

I have received a PERC 6i adapter E2K-UCP-61-(B) installed it on my PE 2900 III instead of the SAS 6i.

Problem is that when I power on the server I am receiving the error:

RAID Adapter
Memory Error!!!
Please check the SDRAM connection.

I have tried to remove all Hard Drives from the server and reboot but still the same.

Thanks for any help.

AG