1. Unplug all USB and other devices and re-try.
2. If that didn't help, try the generic reset (very safe.)
In short, power off, remove AC, remove battery, press hold the power button for 60 seconds, release, apply battery, AC and test.
3. If you look in the CNET Laptop Troubleshooting forum we have a sticky with many Toshiba details.
Toshiba Satellite L305D-S5882
model number PSLC8U-011012
Situation : when I power up I can hear the fan spin, and the HDD spin but BIOS doesn't start loading on the screen. I get the power LED but not the HDD activity LED.
I work with electronics in the military so I tried several things already. first I tried hooking up another monitor just in case this didn't help. then I falt tested the memory, and put the HDD in a usb adapter to confirm it is working. I tested my power adapter with a multimeter and confirmed I am getting the correct voltage to the system. I also took it all apart to make sure that every conection is still good.
I am at a loss here as to what to do next I am suspecting the Mainboard but a replacement is $150 to $250. I would like to be sure that this is the problem before spending the money on this. I have not ruled out the CPU or BIOS chip.
What else can I do to troubleshoot this system.