How memory can disturb your night?

WTF!

2:0>ERROR: TEST = Block Memory
2:0>H/W under test = CPU2 Bank 0 Dimm 2, J8001 side 1
2:0>Repair Instructions: Replace items in order listed by 'H/W under test' above.
2:0>MSG = DIMM failure Bank 0 DIMM 2 Pin 195
2:0>END_ERROR

Results: my night was spent testing DIMM memory modules… 🙁