Power saver error 0x5

uninstall Power Saver while in Safe Mode, reboot into Safe Mode again, and reinstalled Power Saver

HI there,
The "Error" texts saying:
PXE-E61: Media test failure, check cable
PXE-MOF: Exiting Intel Boot Agent.
Are completely normal. This simply states that there is no external cables plugged into the specialty inputs on your toshiba laptop.

The "operating system not found" is stating that your existing hard drive is either A) dead or B) been erased.

Try to re-install your operating system, if it finds no hard drive, you'll need a new one!

http://www.irisvista.com/tech/laptops/Toshiba-Satellite-M105/take-apart-notebook-1.htm
I hope this helps(:

Because the fan doesn't work, your laptop is overheating and going into thermal shutdown. have the fan replaced and the area where it is screwed to cleaned as it harbours dust over time preventing adequate cooling.

Download the hotkey utility from the toshiba web site. I got this errorafter installing service pack 2 for xp. The hotkey utility fixed it.error appeared every time I started windows xp. Go to:http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/home.jsp
and go to downloads, select model and download:
Toshiba Hotkey Utility
Install and restart, problem solved. thank you, thank you...

try to reinstall your operating system..or restore the system..go to control panel and click the back up or restore files so that all the errors in your computer will fixed..even a fatal error..hopefully this will help your problem..

it sounds like your HDD has suffered a critical error. Go here and download this torrent. This will need to be burned to a disk. now it comes with FreeDos installed. Put the disk in the drive and bootup. use option 5 to repair your HDD. after this finishes try booting your system up.

If you run a repair with the recovery disc you won't lose any info. The only time you'll lose the info is if you run a complete reload. Run the system disc until it gets to the point of finding installed operating systems, at this point instead of deleting the partition, press R and it will reinstall the operating system files only leaving other installed files and programs intact. Keep in mind that many times when this happens, it's a hard drive failure. If it is a hard drive failure, then you will have to replace the hard drive and you will lose the info, sorry.

have you run a good virus scan ?

It sounds like the built in powersaver utility is crashing. Assuming you can log into the OS after the error, go to Control Panel - Power Options and change to some other (or none at all) setting. And/or uninstall the application completely.

If you can not even get into windows you could try changing the power settings within to bios to disable power saving at all, and that might allow you to boot properly and then turn off/uninstall as described above.