My guesses premised that the OP may be confusing what the BIOS is just in case

Actually if we knew the motherboard model it would help rule that out.

If one could go this way , "other possibilities" include (with the premise that the OP may keep the PC underground, but knows what the BIOS is) that a little mouse could have eaten the IDE or SATA cable. B)

More seriously, I have seen often SATA cables get disconnected even if the case had no or very little shocks/movements...double checking cables would be a good idea anyway.

jaclaz

My motherboard is AMD Gigabyte GA-MA770-DS3. I was using Gigabyte SATA cable(click for cable image) for my SATA harddisk.

Also Victoria results:

With faulty sata hdd:

Without faulty sata hdd(only connected IDE hdd):

Edited January 30, 200917 yr by msfn00

What firmware do you have? This issue has three stickies in the hardware hangout. It is a firmware problem affecting mainly the 7200.11 drives but also yours. Look: http://seagate.custkb.com/seagate/crm/self...sp?DocId=207969

Firmware didn't fix my harddisk problem.

Can you prefer me data recovery programme for my problem?

Can you prefer me data recovery programme for my problem?

Let's start again.

If it's shown as BUSY, it is damaged in it's firmware.

There is NO data recovery program (software) on earth capable to recover from a BUSY (firmware) problem, it simply cannot see the drive.

You cannot possibly have applied the new firmware to a locked drive, you need a RS232-TTL interface and unlock the drive:

http://www.msfn.org/board/index.php?showtopic=128807

or send it to Seagate.

jaclaz