Table 3-1 (Page 23 of 26). Firmware Error Codes.
Error Code Description Action / Possible Failing FRU
40B00100 Surveillance timeout on CPU 1. 1. Check for errors or unusual condi-
tions that might prevent the CPU
from reporting Heartbeat mes-
sages; such as system dump,
machine check or checkstop error.
Review the Service Processor error
log.
2. Replace the CPU card.
40B00101 Surveillance timeout on CPU 2. 1. Check for errors or unusual condi-
tions that might prevent the CPU
from reporting Heartbeat mes-
sages; such as system dump,
machine check or checkstop error.
Review the Service Processor error
log.
2. Replace the CPU card.
40B00102 Surveillance timeout on CPU 3. 1. Check for errors or unusual condi-
tions that might prevent the CPU
from reporting Heartbeat mes-
sages; such as system dump,
machine check or checkstop error.
Review the Service Processor error
log.
2. Replace the CPU card.
40B00103 Surveillance timeout on CPU 4. 1. Check for errors or unusual condi-
tions that might prevent the CPU
from reporting Heartbeat mes-
sages; such as system dump,
machine check or checkstop error.
Review the Service Processor error
log.
2. Replace the CPU card.
40D00003 An unknown slow shutdown com-
manded.
Critical cooling problem. Check to
ensure the the temperature is in the
ambient range.
40D00004 An unknown fast shutdown com-
manded.
Locked fan failure detected. Make sure
all fans are operating normally.
4B200055 No CPU card in first slot. 1. If only one processor card is used,
it must be in slot #1.
2. If two processor cards are being
used, replace the card in slot #1.
3-24 RS/6000 Enterprise Server Model H50 Installation and Service Guide
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