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Question

satellite L640 no bois screen appered and no booting

Feb 13, 2015 5:40PM PST

hi guys

I have the problem in my laptop..
my laptop details :

satellite L640
model no PSK0LG -01D002


initially it is not displaying bios screen and no booting..
ac adapter plug indication,powern on, battery and hdd led showing indication

when i switched on power supply,i was holding fn key and repeatedly pressed f5

then windows update screen came( windows updating 15% and displayed update failed and its shown restarting
afterthat i couldnt get in to os..
so i thought os corrupted.. then i removed hdd and installed new os using other laptop and i plugged the hdd in to this laptop..
this time no bios screen .. black screen appeared and i heared the windows new hardware detecting sound ..
so i used same method holding fn+ repeatedly pressing f5.. finally i got the windows screen...i insatlled all the drivers..
when i was browsing in google chrome, processor fan increased their speed and heard fan noisy sound .. laptop suddently turned off

after that no booting no bios screen..
hard disk and RAM checked and working fine.
changed the CMOS battery and cleaned the dust on motherboard

please help me in this issue

Discussion is locked

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Answer
Re: no bios screen, no booting
Feb 13, 2015 5:46PM PST

Since a PC/laptop doesn't need a hard disk to show the BIOS and boot (it can just as well boot from a CD, DVD or USB-stick, and if it finds nothing of those it gives an error message) I'd remove the hard disk, reboot and see what happens. If consistently the BIOS screen shows and there's a message about not finding a boot device, try booting from an optical disc (Linux, Windows Install, memtest86, whatever). None of those need a hard disk to start working.

After you did this experiments, tell the result.

Kees

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At very first i tested what u suggested
Feb 13, 2015 6:41PM PST

Hi kees,
Thank you for ur reply Happy
kees! you are right !.. to show bios screen ,no need hard disk.. at very first i tested what u suggested.. but no bios screen.. just flashing the screen ( which also not even show the toshiba bios screen ..only light blue color ) and turn to black screen..approximately after 10 seconds system shutdown itself..

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Re: no bios screen
Feb 13, 2015 10:25PM PST

Then it's time to find a repair shop. Although probably it's better to buy another laptop.

Kees

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Answer
Last hurrah.
Feb 13, 2015 11:33PM PST