Post Error Indicators - Acer Aspire Z1650 Service Manual

POST Error Indicators

When a system error is detected during POST (Power On Self Text), the Setup utility will switch to diagnostic
mode and display a POST error message.
POST error messages tell users what failure the system has detected. Some error messages could be related
to a hardware device. Others may indicate a problem with a device configuration. In some cases an error
message may include recommendations for troubleshooting or require that you press the Enter key to display
recommendations. Follow the instructions on the screen. It is recommended that you correct the error before
proceeding, even if the computer appears to boot successfully.
IMPORTANT: If your system fails after you make changes in the Setup menus, reboot the computer, enter
Setup again and load Setup defaults to correct the error.
Memory
Message
Gate20 Error
Multi-Bit ECC Error
Parity Error
RAM R/W test failed
CMOS Memory Size
Wrong
Boot
Message
Boot Failure...
Invalid Boot Diskette
Drive Not Ready
A: Drive Error
B: Drive Error
Insert BOOT diskette
in A:
84
Description
The BIOS is unable to properly control the mainboard's Gate A20 function, which
controls access of memory over 1 MB. This may indicate a problem with the
mainboard.
This message will only occur on systems using ECC enabled memory modules.
ECC memory has the ability to correct single-bit errors that may occur from faulty
memory modules.
A multiple bit corruption of memory has occurred, and the ECC memory algorithm
cannot correct it. This may indicate a defective memory module.
Fatal Memory Parity Error. System halts after displaying this message.
This message is displayed by the AMIBIOS8 when the RAM read/write test fails.
The base memory (memory below 1MB) size that is reported in the CMOS (offset
15h) mismatches with the actual size detected. This condition may occur when
the hole is set at 512K base memory or when CMOS is corrupted.
Description
This is a generic message indicating the BIOS could not boot from a particular
device. This message is usually followed by other information concerning the
device.
A diskette was found in the drive, but it is not configured as a bootable diskette.
The BIOS was unable to access the drive because it indicated it was not ready for
data transfer. This is often reported by drives when no media is present.
The BIOS attempted to configure the A: drive during POST, but was unable to
properly configure the device. This may be due to a bad cable or faulty diskette
drive.
The BIOS attempted to configure the B: drive during POST, but was unable to
properly configure the device. This may be due to a bad cable or faulty diskette
drive.
The BIOS attempted to boot from the A: drive, but could not find a proper boot
diskette.
Reboot and Select proper Boot device or Insert Boot Media in selected Boot
device
BIOS could not find a bootable device in the system and/or removable media
drive does not contain media.
Aspire Z1650 AIO Computer Service Guide