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ESDI hard drives

A

andy

Experienced Member
Joined
Oct 22, 2008
Messages
268
Location
Austin, TX
I have several ESDI hard drives that I would like to use (IBM 0669, IBM 0671, and Maxtor 8670E). I've never used an ESDI hard drive, so I have a few basic questions. First, is the cabling the same as for MFM/RLL? Second, what's a good ISA controller? I have a pair of ESDI controllers that apparently came from an RT PC.

http://ibmmuseum.com/ohlandl/6152/RT-PC_Enh_ESDI.html

When installed in my AT, the floppy controller works, but I get a hard drive controller failure at POST. I know this error can be caused my a bad drive, or incorrect cabling with an MFM/RLL controller, but I don't know if it's possible to use this controller with an AT.
 
Pretty much the same cabling (i.e. 34 and 20 conductor) but that on-card BIOS won't work--it's written for the RT instruction set. I don't know if x86 versions of the PROM or its accompanying setup program exist.
 
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