Acer Altos G520 series, Service Manual

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65 Altos G520
Error Messages
When a recoverable occurs during the POST, the BIOS displays an error message describing
the problem.
Error Message Explanation
GA20 Error An error occurred with Gate A20 when switching to protected mode
during the memory test
Pri Master HDD Error
Pri Slave HDD Error
Sec Master HDD Error
Sec Slave HDD Error Could not read sector from corresponding drive
Pri Master Drive -- ATAPI Incompatible
Pri Slave Drive -- ATAPI Incompatible
Sec Master Drive -- ATAPI Incompatible
Sec Slave Drive -- ATAPI Incompatible Corresponding drive is not an ATAPI device. Run Setup to make sure
device is selected correctly.
A : Drive Error No response from diskette drive
CMOS Battery Low The battery may be losing power. Replace the battery soon
CMOS Display Teyp Wrong The display type is different than what has been stored in CMOS.
Check Setup to make sure type is correct
CMOS Checksum Battery Low The battery may be losing power. Replace the battery soon
CMOS Display Type Wrong The display type is different
CMOS Checksum Bad The CMOS checksum is incorrect. CMOS memory may have been
corrupted. Run Setup to reset values
CMOS Settings Wrong CMOS values are not the same as last boot. These values have
either been corrupted or the battery has failed
CMOS Date/Time Not Set The time and/or date values stored in CMOS are invalid. Run Setup
to set correct values
DMA Error Error during read/write test of DMA controller
FDC Failure Error occurred trying to access diskette drive controller
HDC Failure Error occurred trying to access hard disk controller
Checking NVRAM NVRAM is being checked to see if it is valid
Update OK NVRAM was invalid and has been updated
Update Failed NVRAM was invalid but was unable to be updated
Keyboard Error Error in the keyboard connection. Make sure keyboard is connected
properly
KB/Interface Error Keyboard interface test failed
Memory Size Decreased Memory size has decreased since the last boot. If no memory was
removed, then memory may be bad
Memory Size Increased Memory size has increased since the last boot. If no memory was
added, there may be a problem with the system
Memory Size Changed Memory size has changed since the last boot. If no
No Boot Device Available System did not find a device to boot
Off Board Parity Error A parity error occurred on an off-board card. This error is followed by
an address
On Board Parity Error A parity error occurred in onboard memory.This error is followed by
an address
Parity Error A parity error occurred in onboard memory at an unknown address
NVRAM/CMOS/PASSWORD cleared by Jumper NVRAM, CMOS and passwords have been cleared. The system
should be powered down and the jumper removed