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LBA vs Normal Hard Drives

Posted on 1997-05-15
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Last Modified: 2013-12-16
I am trying to setup two hard drives on my system.  The master, and fully set up is a Western Digital AC33100 3.1gig.  The slave is a Conner CFA540A 540 meg, which was previously the slave to a Conner CP174F 174 meg.  My system is a P90 with Award Bios, 40 meg on board, and a fresh install of Win95 on a clean drive (3.1gig).

In order to set up the 3.1 gig drive, I had to set it up in LBA mode, and it worked great.  The 540 meg drive was originally formatted and set up as normal.

They don't seem to want to work together.

My Question (finally):  Can I set up one drive as LBA and one as Normal in the CMOS, or must they both be set the same?

Additional Info:  I have jumpered the WD drive for a slave present (two different ways, per the label on the drive).
Setting up the WD 3.1 gig, I partitioned it into 3 roughly equal partitions, C, D, and E.  When setting the Conner drive up as a "Normal" drive in the CMOS, I was receiving Hard Drive Failure (80) notices right after the memory test.  When I set it up as LBA also in the CMOS, I got a later error (full page error description) which described my IDE Controller as having one device set up as 32 bit and one set up in compatability mode.
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Question by:anjaa
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by:smeebud
ID: 1747145
Are you sure you can use all your 3.1gig with just LBA. I thought that(enlighten me if I'm wrong)2.1gig was the limit before having to create another patition?
I know this does not answer your question but it's a start to finding the solution.
Partition Magic solves these kind of problems with it's eyes closed.
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caplan earned 100 total points
ID: 1747146
Each drive can be set up with its own addressing mode in CMOS.  Make sure that the CMOS is reporting that the Conner is in normal mode and the wd is in LBA mode.

To smeebud- If you install Windows 95 OSR2 (version 4.00.950b) then you can just have a single partition on the big drive no sweat.

My guess is that you didn't tell the wd that a slave is present.  I have this drive too, and the default jumper arrangement is the "single drive" one.
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by:anjaa
ID: 1747147
Edited text of question
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by:smeebud
ID: 1747148
Thanks caplan. I forgot about OSR2. Duh:)
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