Diagnostic tools 73
Error code Error message Corrective action/description
0251 System CMOS checksum bad - Default
configuration used
The settings in the Setup Utility have been
corrupted or modified incorrectly, perhaps by an
application program that changes data stored in
CMOS.
Access Setup, and then either load the system
default values or enter your own custom values. If
the error persists, check the system battery or
contact your HP Customer Support provider.
0260 System timer error The timer test failed. Requires repair of the
system board.
0270 Real time clock error Real-Time Clock (RTC) fails BIOS hardware test.
May require board repair.
0271 Check date and time settings BIOS found date or time is out of range. May
require setting legal date (1991-2099).
Access Setup and check the values in the
System
Time
and System Date fields of the Main menu.
0280 Previous boot incomplete - Default
configuration used
Initial bootup failed. BIOS automatically loads
the default system values and then boots again.
0281 Memory size found by POST differed
from CMOS
The user added or removed a memory module,
thus the system memory size is different from the
previous bootup value.
02D0 System cache error - Cache disabled Processor error. Replace the processor.
02F0 CPU ID: –
02F4 EISA CMOS not writeable System board failure. Replace the system board.
02F5 DMA Test Failed The DMA control test failed.
02F6 Software NMI Failed An NMI signal is detected.
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