I have a Toshiba Satelite 1805-s253. When I turn it on, it attempts to start but then will immediately shut down with the power indicator flashing orange. I check the power supply and that is working ok.

• Hi, "first," restart the computer, and click on the "Start Button," in the (right pane) select to open the Computer. Check to see if there's a DVD RW Drive (D:) in the "Device: with (Removable Storage) area." If the area is (Blank)? Go to and select All Programs, scroll to find the Media Disk Player. You may need to Setup / Install the player, and "Update the Drivers," when the (install is completed) follow all the instructions. "Remember to always click on the Apply and OK buttons after making the changes, and lastly, restart the computer." "If the problem still exist, try going to the "Device Manager" from the Control Panel, [Roll-back, and or Update Drivers], restart the computer. Next, in a final attempt to fix the problem go back to the (Control Panel), and select from the "Update Options' "Let me Choose... To update the drivers Manually" this will in stall the "original" (Drivers) that came with the computer. "Rating the solution for its helpfulness is appreciated, thanks."
  

Hi,

Does the machine boot to bios? If so, it could be the harddrive. If it won't even boot to bios, try changing or re-seating the memory. These models are a bit buggy.

Thanks, good luck