Acer Altos R510 Service Manual page 121

Message Displayed
CMOS Date/Time Not Set
CMOS Battery Low
CMOS Settings Wrong
CMOS Checksum Bad
Message Displayed
Keyboard Error
PS2 Keyboard not found
PS2 Mouse not found
Keyboard/Interface Error
Unlock Keyboard
System Halted
Message Displayed
Warning! Unsupported USB device found and
disabled!
Warning! Port 60h/64h emulation is not
supported by this USB Host Controller!
Chapter 4
Table 8. CMOS BIOS Messages
Description
The CMOS Date and/or Time are invalid. This error can be
resolved by readjusting the system time in AMIBIOS Setup.
CMOS Battery is low. This message usually indicates that the
CMOS battery needs to be replaced. It could also appear when
the user intentionally discharges the CMOS battery.
CMOS settings are invalid. This error can be resolved by using
AMIBIOS Setup.
CMOS contents failed the Checksum check. Indicates that the
CMOS data has been changed by a program other than the
BIOS or that the CMOS is not retaining its data due to
malfunction. This error can typically be resolved by using
AMIBIOS Setup.
Table 9. Miscellaneous BIOS Messages
Description
Keyboard is not present or the hardware is not responding
when the keyboard controller is initialized.
PS2 Keyboard support is enabled in the BIOS setup but the
device is not detected.
PS2 Mouse support is enabled in the BIOS setup but the
device is not detected.
Keyboard Controller failure. This may indicate a problem with
system hardware.
PS2 keyboard is locked. User needs to unlock the keyboard to
continue the BIOS POST.
The system has been halted. A reset or power cycle is required
to reboot the machine. This message appears after a fatal error
has been detected.
Table 10. USB BIOS Error Messages
Description
This message is displayed when a non-bootable USB device is
enumerated and disabled by the BIOS.
This message is displayed to indicate that port 60h/64h
emulation mode cannot be enabled for this USB host controller.
This condition occurs if USB KBC emulation option is set for
non-SMI mode.
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