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4. Troubleshooting
X460 4 - 19
Others
# When turn on computer
“Invalid System disk Replace
the Disk and then
key”
press any
e.
>Cause : USB memory stick or CD title deos not have a boot imag
- Check HDD connection
-
Check if CMOS can detect HDD or not.
-
Re-install windows (OS broken)
“ Press <F1> to resume,
<F2> to setup.”
- Press <F2> to enter BIOS setup.
(Refer “BIOS Setup Guide
-
Check date & time and so on.
-
Save & exit.
”.)
“CMOS Checksum error”
> Cause : RTC battery discharged.
- Replace RTC battery and configure date & time in CMOS setup.
Boot in Safe mode
Ca
is screen can appear.
use: If shutdown system abnormally, Th
- When turn off system, use “Start > Shutdown” menu.
- Scan disk. (Run “chkdsk” utility.)
Can not boot in USB floppy
drive or USB memory stick
- Configure boot device priority in CMOS setup.
- Check if the disk is bootable.
# When turn off Windows, and display issues
Can not turn off computer
- If it is impossible to turn off system normally, can turn off system by
pressing power button for 4 seconds.
System halts on windows
- Press <Ctrl> + <Alt> + <Del> to run “Windows task manager.”
- Find the application program which can not respond.
- Select the program and press <Alt> + <E> to quit the program.
- If task manager can not load for a while,
press power button for 4
seconds to shutdown computer.
Can not display on CRT
- Press <Fn> + <F4> several times to select output devices.
- Refer “LCD Related Troubles” to check H/W defects.
USB devices and Sleep
mode
- It is possible that system can not detect USB devices on Sleep mode.
- It is possible that system lost USB devices after waking up from Sleep
mode. In this case, re-connect USB devices after remove.
If system enters Sleep mode
during runs “ Dos window ” ,
after
resuming
can
not
display.
- Press <Alt> + <Tab> to display screen again.
RTC Reset
Remove Keyboard, There is CMOS Clear
Point below left Memory socket. Short this
point with tweezers during 20~30 seconds.
After do this, CMOS will be clear.
