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Dear Sir, Please help me! I can't enter BIOS even after pressing DEL/F2/F8/F12/END KEY, it only shows 'Prepare to Enter'. After that an undersore symbol keeps blinking at top-left of screen. I can't start Windows either. I did every possible trick but nothing works: RAM Changed, Processor...

Hi everyone! Firstly I'd like to apologize for repeating this topic, but after scouring over information I find on the net I'm more bewildered than when I started... I have no knowledge on PC hardware despite trying to understand it, but what I do see quite often is that GPU upgrades generally...