I did not update.
Dell delivered the last 2 Systems with newer versions.
I now downgraded to the same versions that are installed on the existing R515 systems.
Now i´m reinstalling ESXi 5 ...
I did not take a screenshot but i exportet the systemlogs with vi-client.
Is there a file which contains the PSOD message?
EDIT: And i disabled DMA Virtualization, because we do not need DirectPath I/O