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Table 2. Numeric error codes (continued)
Symptom or error (beeps, if any) FRU or action, in sequence
02F0
CPU ID:xx Failed.
1. CPU.
2. System board.
02F5
DMA test failed.
(two short beeps)
1. DIMM.
2. System board.
02F6
Software NMI failed
(two short beeps)
1. DIMM.
2. System board.
02F7
Fail-safe timer NMI failed
(two short beeps)
1. DIMM.
2. System board.
1802
Unauthorized network card is plugged
in—Turn off and remove the miniPCI
network card.
(two short beeps)
1. Remove the Mini PCI network card.
2. System board.
1804
Unauthorized WAN card is plugged
in—Power off and remove the WAN card.
1. Remove the wireless WAN card.
2. System board.
54 ThinkPad X100e Hardware Maintenance Manual