Hi, you are experiencing memory parity errors:
%ERR-1-GT64120 (PCI-0): Fatal error, Memory parity error (external)
GT=0xB5000000, cause=0x0100E283, mask=0x0ED01F00, real_cause=0x00000200
bus_err_high=0x00000000, bus_err_low=0x00000000, addr_decode_err=0x00000470
%ERR-1-SERR: PCI bus system/parity error
%ERR-1-FATAL: Fatal error interrupt, No reloading
err_stat=0x81, err_enable=0xFF, mgmt_event=0x40
There isn't much that you can do beside replacing the memory and throughly clean connectors, ensure proper ventilation and hope it won't happen again. If you have a support contract for the box you should be entitled to RMA memory and/or NPE.
Hope this helps, please rate post if it does!