ibm xseries – Recover data from IBM x3650 with SYS BRD ERR without Similar Server

i would to ask all the expert here to help, sorry for the rudeness, recently we are having power outage testing for the generator for the whole building, once trying to turn back on this IBM system x3650 7915, it never boot up with sys board error led lit on. I’ve tried with changing the same battery voltage and manufacturer but no luck.

I have no idea what Raid is configured into these drive, and i hope someone can help with instruction on how to retrieve the data from drive without the same or similar server. Please help thank you.