I recently replaced the cooling fan in an HP 2000/Windows 8, now my laptop shuts down right after the HP logo comes up, although a few times it has flashed my desktop picture, no icons, for just a sec. Power and wireless LEDs are lit (wireless is orange). If I remove the RAM the wireless light glows white and the Capslock blinks in a 2 second pattern, according to HP this is a BIOS problem. Have tried multiple hard resets, tested battery and RTC battery.