My neighbour has a prob with his computer. When he tried to start up 2day, his pc did not pass the screen which shows the make or model of his motherboard.
Are there any beep sounds? Uplug the power cord from the computer for about 10-15 minutes and try powering it on again. If it doesn't work, open the casing and remove the battery for about 15 minutes and try again.
cannot be hardisk cause cant even boot up the bios. Go to any pc shop and ask for cmos battery check. Can be faulty powersupply too. powersupply => try using a working motherboard and use the psu to power it up.