[SOLVED] Toshiba Satellite Pro C50-A-1KJ powers on but shows instant black screen and fan sounds ?

[Georgec06]

Ive tried replacing the CPU/GPU, RAM & CMOS battery, none of which has worked. The laptop powers on but doesn't show anything, not even the BIOS.
Then front power led does turn on and so does the fan on max speed. Any suggestions??

 

[Lutfij]

This issue of yours has been going on for some time now;

[SOLVED] - Toshiba satellite Pro C50-A-1KJ CPU LCD isn't working but can access bios on external monitor

Hi I have a Toshiba satellite Pro C50-A-1KJ and I recently replaced the CPU to fix my old one as it had defects and the intel graphics weren't working now it turns on and I can access the bios but only using a second monitor nothing comes up on the main LCD How do I fix this?

forums.tomshardware.com

Question - Toshiba satellite Pro C50-A-1KJ intel graphics not working

Hi, I have a Toshiba satellite Pro C50-A-1KJ and whenever the intel HD graphics driver is installed for the proper screen resolution and brightness control etc my screen goes all weird. This is because my graphics chips is broken and I want to replace it with one from an old motherboard non...

forums.tomshardware.com

Are you sure that the motherboard on the laptop isn't compromised? If you're handy with a multimeter and a FLIR camera, you should be able to see where the power is unable to migrate on the PCB and/or of one component is the issue on the power delivery side.