Charles Rogers wrote: It would be nice if you added the leading "> " to the text you are replying to. Otherwise it's hard to tell what is the original post and what is your reply. I have added the missing ">" for clarity below. >> Recently, I bought a Samsung 40GB hard disk to be used in a relatively >> old > > When you say "OLD" are you referring to a DOS machine ? ? > >> But I find that the BIOS of the PC does not even recognise the hard >> disk. > > What OS are you using ? Other than for interest, why does this matter? If his *bios* can't see the drive, then there is nothing he can do at the operating system level to fix this, at least not if he wants to boot off that drive. It might be possible to install this as a second drive and boot off a smaller drive the bios can see. In that case drivers loaded with the operating system can help, but this requires at least two disks in the system, which is not what the original question was about. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads