IBM PC 300 Maintenance Service Manual page 61

Table 2-2 BIOS Error Codes, Messages, and Beeps List
BIOS Error Codes, Action/FRU
Messages, beeps
NOTE: To diagnose a problem, first find the BIOS error messages, codes, or
beeps in left column. If directed to a check procedure, replace the FRU indicated
in the check procedure. If no check procedure is indicated, the first Action/FRU
listed in right column is the most likely cause.
Beeps
(2: long, 1: short) This code indicates that a video error has occurred and
2-1-1 the BIOS cannot initialize the video screen to display any
additional information.
The code indicates that DRAM error has occurred. See
"Memory (DIMM)" on page 98 and page 109 to get more
2- (repeatedly)
information.
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