1986 Seagate ST-225 Advice

[ddrecovery]

Just had this drive in. I know it pre-dates IDE and is most likely MFM. From what I understand there is no direct interface available between IDE and MFM. We have the original Microtek HDC 1000 ISA controller card. Is the only way to read the drive using a mobo with an ISA slot?

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[fzabkar]

Since you have an 8-bit MFM card, it may be best if you were to look for an IBM XT class machine rather than AT class to minimise any potential compatibility problems.

Otherwise you should be aware of the following resource allocations for XT HDD controllers.

http://www.techhelpmanual.com/96-irqs__ ... rupts.html
http://www.techhelpmanual.com/898-xt_ha ... ports.html
http://www.techhelpmanual.com/908-dma_ports.html

[data-medics]

Does someone really want the data back off that thing or is this just a fun project?

[fzabkar]

This might help:

http://bitsavers.trailing-edge.com/pdf/ ... ematic.pdf

... plus others:

http://bitsavers.trailing-edge.com/pdf/seagate/

[ddrecovery]

Does someone really want the data back off that thing or is this just a fun project?

I took the project on as I wanted to work with this drive and learn about the drive. It is definitely a fun project for the client so funds might be limited.

Since you have an 8-bit MFM card, it may be best if you were to look for an IBM XT class machine rather than AT class to minimise any potential compatibility problems.l

Thank you as always fzabkar