Try to follow the instructions and tips given in this post and make sure to use the latest firmware package for the board S5500BC downloaded from the support page.
All the best,
Thanks for all the replies and advice.
Yesterday I took the server to our supplier and they pointed out that the EFI bios was very old even though i had purchased this only a couple of months ago!
They update the EFI which solved the problem.
It is rather strange that EFI couldn't be updated through the deployment app.
Thanks for your reply Dan.
For this *particular* board updating the BIOS through the deployment app. proved impossible.
Even trying to downloading through Internet didn't work.
The problem in this particular case was that it was brand new machine but the BIOS was very old.
Our supplier had to install everything manually.
The whole process has cost us a lot of time.