Acer 5734z freezes at acer logo

[Ova Nadal]

Hi everyone, I bought an used Acer 5734z that freezes on Acer logo. I changed ram, cpu, power charger,......everthing. I removed cd rom, hdd, wifi and nothing happened.
Everytime it turns on, i tried to access to bios pressing F2 and itfreezes again.............I turn it on and I press Esc key and shows bios post and freezes again!!!......I decided to upgrade bios.......but when it starts the bios flashing process (obviously pressing fn+Esc before plug the power charger and turn it on) the notebook turns off and I cant turn on if i dont unplug the power charger.
Suggestions? I tried using the latest bios, the first one, all software includded, only the .fd file.......is all the same......it turns off!!!

 

[Laptop_Nerd]

Hi Ova,

The fact that it freezes in BIOS already mean there's a problem with the motherboard of your PC even if you do an upgrade or replace the components of it won't even help, it's the actual motherboard that needs replacement.