Toshiba Laptop wont boot, shows blinking underscore

[jay003zee]

Need help, upon turning my laptop on it immediately shows a black screen with a blinking underscore and get stuck there. I've tried removing the battery and plugin it back again (which I've read in the some forums) and it still stays the same.

I experience some other problems before this happened, which i think are related to the blinking underscore.
The system clock goes out of sync even when sync to a time server, its goes from 3:00 to 4:00 then resets to 3:00 again. The laptop in very rare occasions suddenly shuts down. I forgot to unplugged the speakers jack from the laptop(batteries and charger removed).

Laptop is Toshiba Satellite 750.

Thanks,
jay003zee

 

[gregrocker]

Sound like you may need to replace the CMOS battery as indicated by clock not syncing with server.

But work through the steps for Troubleshooting Windows 7 Failure to Start

 

[jay003zee]

Sound like you may need to replace the CMOS battery as indicated by clock not syncing with server.

But work through the steps for Troubleshooting Windows 7 Failure to Start

Hi gregrocker, is it possible that a dead cmos battery will cause a laptop not to boot?

 

[gregrocker]

Yes, possible, but more likely are the steps covered by Troubleshooting Windows 7 Failure to Start http://www.sevenforums.com/tutorials/219533-troubleshooting-windows-7-failure-boot.html