Hard disk not detected

[Ksen1]

Hard disk not listed in the setup

[Lil_Boy_Blue]

Hi
PLEASE POST ANY RESULTS.
First:- Turn off the computer, press and hold the PWR button for 4 seconds.

Then - Leave only keyboard and mouse connected, disconnect all externally connected
devices such as Docking Station, USB storage devices, displays, and printers.
Unplug the AC adapter from the computer.

Next - Press and Hold the Power button for 15 seconds to Hard Reset.
Rinse and Repeat; Re-Connect the AC adapter.

NOW begin checking/testing/proving the Hardware is fit for purpose.
Power on your PC, press ESC (repeatedly), then F2 at the prompt.
Choose System Tests (Fast Test does a 4 minute hardware check).

Signs of a CMOS Battery Failure

It is a 3V battery. If the voltage drops below a certain level, your computer loses the memory.

The CMOS settings like date and time get changed.

Your computer will show a message such as “Booting Error, unable to detect disk drive.”