my lenovo z510 laptop motherboard burned down a few months ago, i sent it to garantee and after two month they replaced it with a newer one(besides there are too many scratches on the lid, the lan protect is broken and changed with another one which is white and my charger is changed!)
the bigger issue is that when i turn it on, the bios takes a long time to start and when i check task manager it show that the bios time is at least 20 seconds(even more, like 34, 35 sec) and other problem is that when i try to go to my bios setup, it's not going through, though I press f1,even I tried f8 to go to safe mode, but didn't work, but when I press f12 it goes in boot menu.
and the other issue is that when i try to install the chipset, it makes a blue screen error and restarts the machine.
i also tried to update the bios version, but displayed an error
is it a bios problem or mother board failure?
I'm really nervous and mad about what happend to me, what should I do now?