Acer Aspire 2010 Service Manual page 84

Beep Code
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77
Message
"PARITY ERROR AT UNKNOWN
LOCATION"
"PARITY ERROR AT LOCATION
XXXXXX"
"NO INTERRUPTS FROM TIMER
0"
"UNEXPECTED AMOUNT OF
MEMORY - RUN SCU"
"CLOCK NOT TICKING
CORRECTLY"
"TIME/DATA CORRUPT - RUN
SCU"
"MACHINE IS LOCKED - TURN
KEY"
"BOOT SECTOR 0 HAS
CHANGED"
Suspend-to-Disk partition
MISSING!"
"Hard Disk ERROR!"
"Suspend-to-Disk partition
signature NOT FOUND!"
"Suspend-to-Disk partition size
TOO SMALL!"
"MEMORY SIZE HAS CHANGED
-- REBOOTING"
Description
Parity error during memory test at unknown
location.
Parity error during memory test at the
indicated location.
Timer 0 of the clock timer controller does
not generate system interrupts correctly.
The system memory size does not match
with the CMOS record.
The system clock does not working
correctly.
The time/date information in CMOS is
invalid.
The keyboard operation is locked.
The boot sector of the hard disk has been
changed, probably because of a virus
attack.
No Suspend-to-Disk partition found.
Access to the Suspend-to-Disk partition
failed.
No Suspend-to-Disk partition signature
found.
The capacity of the Suspend-to-Disk
partition is not enough.
The memory size has changed after
previous Suspend-to-Disk operation.
Chapter 4