An uncorrectable memory error has been detected on DIMM 2 and DIMM4" and "a software NMI has occurred on the system" errors are rported by XCC on SR250, Type 7Y51 - Lenovo
memory - Understanding dual-channel behaviour of RAM with three DIMMs - Super User
INTEL Motherboard BTBL12900F1R AA G10189-20B DIMM4/DIMM2 E06995F503A7 TESTED | eBay