Samsung Sens Santorini X460 Service Manual page 155

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4. Troubleshooting
Others
# When turn on computer
"Invalid System disk Replace
the Disk and then press any
key"
" Press <F1> to resume,
<F2> to setup."
"CMOS Checksum error"
Boot in Safe mode
Can not boot in USB floppy
drive or USB memory stick
# When turn off Windows, and display issues
Can not turn off computer
System halts on windows
Can not display on CRT
USB devices and Sleep
mode
If system enters Sleep mode
during runs " Dos window " ,
after resuming can
display.
X460
>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 <F2> to enter BIOS setup.
- Check date & time and so on.
- Save & exit.
> Cause : RTC battery discharged.
- Replace RTC battery and configure date & time in CMOS setup.
Ca use: If shutdown system abnormally, Th
- When turn off system, use "Start > Shutdown" menu.
- Scan disk. (Run "chkdsk" utility.)
- Configure boot device priority in CMOS setup.
- Check if the disk is bootable.
- If it is impossible to turn off system normally, can turn off system by
pressing power button for 4 seconds.
- 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.
- Press <Fn> + <F4> several times to select output devices.
- Refer "LCD Related Troubles" to check H/W defects.
- 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.
- Press <Alt> + <Tab> to display screen again.
not
(Refer "BIOS Setup Guide
is screen can appear.
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.
e.
".)
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