My computer a 1905-s301 will not run on just ac power

Check your AC Adapter for voltage output using a multi-meter. If voltage is lower than stated replace Adapter. When replacing adapter verify Amperage is same before purchase.

I think if you do not have a recovery disc then the operating system needs to be reinstalled. It is also possible that the system needs a virus scan if there was a case of malwares within the PC.

This is the only card that works in the mini-PCI slot in the 1905 series. eBay would be your best bet. You can look under "Toshiba 1905 wireless card" but ... make sure it's an Agere card, as most sellers are selling Intel, Broadcom, Atheros.... and none of them will work.

Yes it will run without battery in place... it not you may have charger plug or lead problem... let me know...

remove the ram and battery try to power on. also you can power off add install ram without battery if power up .
if battery light is amber and blink speed. pls check the battery .if not battery charge pls check the battery and charge circuit

Hi! You may want to toggle the function button designated for turning the monitor on or off. Press FN button together with th efunction button that has a monitor image on it. some system uses F2 of F3 button to do this. (Example: press FN+F3 or FN+F2 button together once while computer is on to turn on system display)

There is none! Anything you wanna add to the 1905 series will have to be done via its PCMCIA (PC card) slots.

this may be too late for you, but I had the same problem with my old toshiba laptop. The support person I talked to had me take out the battery, leave the computer plugged in and push and hold the on button for 10 - or 15 seconds. She said it discharges something or other and to periodically run the computer without the battery. Sometimes my screen just goes blank on my new computer and this always fixes the problem.

Good luck.

Sherrie

IS THIS COMPUTER SHUTTING DOWN EVEN WHEN IT PLUGGED UP TO AC ADAPTER

This site shows you step by step

 

Hope this helps you

 

http://www.irisvista.com/tech/laptops/Toshiba-Satellite-1905/remove-notebook-memory-1.htm