Thank you for joining the Intel communities.
If you install the RAMs that you had before, does you system work fine?
If yes, this could be a compatibility problem, try installing one at a time, if that does not work try updating the BIOS you can download the latest BIOS version for your system at the following link:
BIOS Flash Update Instructions:
If the suggestions above do not solve your problem please reply with your RAM part number to check compatibility.