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08.04. My 4GB+ drive has problems in MSDOS 6.22 or below.




Description

This item is from the Yet Another Enhanced IDE/Fast-ATA/ATA-2 FAQ, by John Wehman and Peter den Haan with numerous contributions by others. (v1.92).

08.04. My 4GB+ drive has problems in MSDOS 6.22 or below.

Some BIOSes assign a drive of over 8192 cylinders a translated geometry with 256 heads. MSDOS 6.22 and below fail when they try to access the last head.

If your BIOS allows a user definable drive type, use a geometry with 15 heads and 16/15 times the original number of cylinders, rounded down. Thanks to universal translation you can always do this. Remember to write down the geometry somewhere so that you can reproduce it if necessary! If no user definable drive type is possible, there's little you can do about this except upgrade to Win95.

 

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