[Solved] Recovering from drives not detected by BIOS

I have couple of HDD (both SATA and IDE) which are not even recognized in the BIOS. I presume that the drive has to be recognized in BIOS first to be able to be detected by Windows (and to be able to be recovered by recovery software applications).

My previous experience is that many of these drives are not detected even after connecting them through USB cables / external SATA docking stations.

I came across a post which mentioned "freezing the drive" for few hours and checking it after that.

I am also aware that there are some ways by which data recovery specialists can get the drive detected first in DOS/Windows and then use data recovery tools to recover the data.

I wanted to know if there is any way for an individualto get the drives which cannot be detected in BIOS currently to be detected and recovered. I am willing to invest some money for buying cables/docking stations for connecting these HDD to PC if that helps.

No, that is not me. All my posts are using ethu only. I can see that the question is very similar though.