POST Error Code FRU/Action
27557 1. 7.2V NiCad Main Battery Pack
2. ServerGuardAdapter
27558, 27559, 27560, 27561 1. PCMCIA TypeII Modem
2. ServerGuardAdapter
27562 1. External Power Control not connected
2. External Power Control
3. ServerGuardAdapter
27563, 27564 1. External Power Control
2. ServerGuardAdapter
275XX 1. Update Diagnostic Software
27801 to 27879 1. Personal Dictation System
2. Adapter
3. System Board
27880 to 27889 1. External FRU
(Speaker,Microphone)
999030XHard disk reset failure 1. Possible hard disk drive problem; see “Hard
disk drive boot error”on page 42
Miscellaneous error messagesMessage/Symptom FRU/Action
CMOS Backup Battery inaccurate 1. CMOS Backup Battery (see “Safety
information”on page 185)
2. System Board
Changing colors 1. Display
Computer will not power-off. See “Power supply”
on page 30. 1. Power Switch
2. System Board
3. Riser card
Computer will not RPL from server 1. Ensure that network is in startup sequence as
first device or first device after diskette
2. Ensure that network adapter is enabled for
RPL
3. Network adapter (Advise network
administrator of new MAC address)
Chapter2. Types 6568/6569/6648/6649 87