HOW TO FIX HARD DISK FAIL ON MY COMPUTER Image source: Google There are many kinds of problems to fail your computers Hard Disk Drive. like as, data cable not connected properly, data cable connected in reverse order, not connected power cable on Hard Disk, SMPL (Switch Mode Power Supply) does not supply required voltage, Improper setting in BIOS (Basic Input/Output System)Setup for Hard disk Drive, Improper jumper setting on HDD (Hard Disk Drive) for master and slave, and or Hard Disk may be Damaged. So, Checking your pc system connection with HDD. Image source: Google If you haven't any ideas then follow our steps/ideas. We think it works for you or not, give us feedback. Please check your data cable and Restart your computer properly. Plug the data cable on the proper direction with HDD and system. Plug the power connector on HDD Properly. Check power voltage on SMPS (5v or 12V). Choose the proper setting on BIOS Setup. Check and fix the jumper setting.