Hard disk issue

My hard drive is not detected in the bios, when I have connected the bootable pen drive (Windows 7). the hard drive is automatically detected in the bios and my computer is working fine.

I have changed the hard drive, SATA Cable, PSU, CMOS battary. and also change the bios setting for the boot sequence. 1. Hard disk, CD ROM, Hard disk .

Please tell me the problem
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More about hard disk issue
  1. Do you have the latest firmware for your motherboard?
  2. Hardware issue, need full system spec.
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