Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!rice!uw-beaver!mit-eddie!bbn.com!mips2!fhr!stagu From: stagu@fhr (Steve Tague) Newsgroups: comp.sys.ibm.pc.misc Subject: Re: How does one install an IDE drive? Message-ID: <1991Mar15.154231.2118@mips2.cr.bull.com> Date: 15 Mar 91 15:42:31 GMT References: <80330016@hpl-opus.hpl.hp.com> <1991Mar11.204553.6597@DRD.Com> Sender: @mips2.cr.bull.com Reply-To: stagu@fhr (Steve Tague) Organization: Bull HN Informations Systems Inc. Lines: 58 1.) You need an appropriate IDE interface either on the bus or on your mother board. I have been told that there are more than one kind of IDE interfaces available so checking for compatability is important. 2.) You need the appropriate mounting kit for the bay in which you intend to install drive. 3.) You need a power tap, either a spare from the power supply or a Y connector. 4.) You need the IDE cable. 5.) Get from the salesperson a manual or facts as to the: Number of cylinders Number of heads Number of sectors per track (Unlikely to be other than 512 but--Number of bytes per sector) 6.) Look at either the documentation on your PC or rummage in the ROM BIOS to see what combinations of Cyl/Head/Sectors are understood by your BIOS. If you are lucky, you have a ROM BIOS that supports a USER defined disk configuration. Idealy you want to find a pre-canned configuration that exactly matches the numbers in step 5. If you are unlucky like I was, pick the entry with the number of heads and number of sectors that match that of the drive and has a cylinder count LESS THAN the number for the drive--this looses some of the disk but you won't BREAK YOUR DRIVE. [This is AT type info, XT's don't have ROM BIOS configuration stuff like this]. 7.) Make a bootable floppy with your RESTORE program, FDISK, SETUPPC(if not in ROM or the equivalent program for updating CMOS) and FORMAT available. 8.) Back-up your old drive if you are replacing it--DO IT EVEN IF YOUR NOT. 9.) Install the drive and cables. 10).Power up the machine. It takes a LONG time for the mis-match between the CMOS configuration and the new hardware to time-out and give a warning. Boot from floppy and run SETUPPC (or equivalent, or use alternate BOOT method to get ROM SETUP) to select the drive configuration code determined in step 6. 11).Reboot from floppy. This should work quicker if the configuration code is close to correct. 12).Run FDISK to partition your drive. Unless you use DOS4.0, a drive letter cannot represent more than 32MB. Even with DOS4.0 avoid creating a drive letter with more than 32MB unless you really need one volume of that size as this forces the RESIDENT LOADING of SHARE in the 640K region. 13).Run FORMAT on all logical partitions to which you have assigned a drive letter. 14).Restore your saved data. GOOD LUCK. Steve