|Yeah, the bios should auto detect it and you shouldn't have to worry about C/H/S. |
The maximum C/H/S is 16383/16/63 or about 8.4 gig. Above that you use LBA. But a lot of older drives that exceeded that capacity had that figure written to their firmware so if you did ID an 80 gig drive by C/H/S you'd still use 16383/16/63. You'd still have access to all 80 gig. I guess when a drive was ID'd that way the firmware would translate it to the actual drive capacity.
There was a WD page that showed the C/H/S for their drives and those larger than 8.4 gig all had that figure. I just checked and it's no longer there so either they moved or removed it.
(Edit) This is part of the text of that page:
Go down to 'Parameters of 8.4 GB Drives and Larger'
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