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hitachi hard drive 15 or 16 heads


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#1
dfoss

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I have inherited a Hitachi HDT722516DLAR80 - you can jumper it to 15 or 16 heads. What does this mean? - The drive is recognized OK as 15 or 16 when I try Cable Select with whichever way round I choose when I check the bios. But what is the significance of this?
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#2
Tyger

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This is what is happening here. This is likely, I haven't checked the specs on this, a one head one platter drive and the controller chip on the drive can emulate a 15 or 16 head drive, this is done just in case your BIOS can only see one or the other. It really won't make much difference but the 16 head setting may run a little faster so choose that one if possible.
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#3
dfoss

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Thanks Tyger
I will set it to 16 heads then - this disc was supposed to be dead, but I just think it was offerred to an elderly PC and the bios was not asked to detect the hard drives again - I will do a low level format using a Maxtor Powermax floppy - that's how I usually start with second hand drives, then let XP look at it and partition and format it for me. So far I have got it up and running using Powermax, recognised as unformatted on an old Packard Bell P61WF

dfoss
When you get to my age every day is a new experience
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#4
Tyger

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You're following a sound procedure, that way nothing is there to interfere with the new OS.
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