Toshiba laptop not booting!

[andrew_54]

I have a satellite c870 and it does not boot. No bios ,no screen (not powering on) but i ear the fan(I sometime need to press some f-keys for it to spin) ,CD drive , HDD ,
When i press off ,it shut down instantly with no delay ,except when the laptop as no RAM .it takes a couple of sec in that case.
I also changed the thermal paste a while ago ,(cooler master stock paste that comes with 212 evo)

 

[Laptop_Nerd]

Hi,

Please do try these troubleshooting steps that I suggested to others who had the same concern with their laptop that may help.
- Start by doing a hard reboot, remove the battery and unplug the AC adapter then press and hold the power button for 20 seconds then try booting it up again.
- If this will not work, do test the AC adapter if it's working properly. Remove the battery and power the laptop with just the AC adapter connected and see if it will boot up or not. do also try a different AC adapter that has the same voltage and see if it will work or not.
- Proceed with reseating the RAM's if trying a different AC adapter will not work, remove them all for couple of seconds then put them back in making sure everything is seated properly.
- If it will still not work, connect an external monitor and see if you'll get any display from it. If there's a display on the external monitor that could mean that the problem is the built in display.
- But if there's still no display on the external monitor that means the problem lies in the motherboard.