Upgrading early BIOS
Eric J Korpela
korpela at ssl.berkeley.edu
Wed Aug 13 11:12:05 CDT 2008
On Mon, Aug 11, 2008 at 8:59 PM, <Hollandia at ccountry.net> wrote:
> The BIOS also allows two User-Defined Types, in which the parameters can
> have the following ranges:
> Cylinders: 0-9999
> Heads: 0-99
> Write Precomp: 0-9999
> Landing Zone: 0-9999
> Sectors: 0-99
The BIOS may allow you to set parameters to those values, but it
probably won't work with more than 63 sectors, especially if you're
using DOS. It also probably won't work with more than 1024
cylinders and 16 heads (again depending upon the OS). LZ and Write
Precomp mean nothing on a modern IDE drive. I usually set LZ to the
number of cylinders -1 and Wreite Precomp to 0.
I would guess that with a BIOS this early you are in the 504MB limit era.
> I have tried the "cable select" settings on all of them. I assume that the
> MASTER/SLAVE methodology is not mandatory.
The concept of "cable select" hadn't been invented when this machine
was built. Use master/slave.
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