I agree and have had similar experiences as Chuck. All the Maxtor and Seagate MFM drives that I formatted RLL performed flawlessly for all the years I used them in that configuration.In my experience, if you've got one, it's worth trying an MFM drive and formatting it as RLL. I did that with numerous non-RLL-labeled drives and got very good results.
Picked up a clone that lost its HDD along the way.
Has a Seagate st11r card inside.
What drives that are somewhat findable would work with this?
Thanks guys!
Although, I have an old version of the card like the OP's, and it only gives me a choice of seven pre-defined Seagate drive models.
View attachment 1004857
Probably. I don't remember selling any RLL controllers. I am far away from home presently, and will look when I get back next week.Do you still have this card?
Yes. I have no use for it.Would you be willing to sell it ?
Probably. I don't remember selling any RLL controllers. I am far away from home presently, and will look when I get back next week.
Yes. I have no use for it.
When I get back home, I will DM you about this subject.
Probably like the ST11M card shown at [here]. It has "ST11M/ST11R" on its BIOS chip, but the card is stamped "ST11M", and "ST11M" is printed on the circuit board. Presumably, the card's BIOS detects whether it is on an ST11M or ST11R, and then acts accordingly (MFM controller or RLL controller).I have an ST11M even though the format bios program reports it as 11R the list of 7 compatible devices is only MFM drives, including the mythical M-225
Just in case: I am in Australia.Thank you and hope to hear from you
Probably like the ST11M card shown at [here]. It has "ST11M/ST11R" on its BIOS chip, but the card is stamped "ST11M", and "ST11M" is printed on the circuit board. Presumably, the card's BIOS detects whether it is on an ST11M or ST11R, and then acts accordingly (MFM controller or RLL controller).
Just in case: I am in Australia.
I expect that some of the RLL controllers listed at [here] will support the ST-250R.
Probably like the ST11M card shown at [here]. It has "ST11M/ST11R" on its BIOS chip, but the card is stamped "ST11M", and "ST11M" is printed on the circuit board. Presumably, the card's BIOS detects whether it is on an ST11M or ST11R, and then acts accordingly (MFM controller or RLL controller).
Just in case: I am in Australia.
I expect that some of the RLL controllers listed at [here] will support the ST-250R.
No.You think that changing the BIOS address location can make it run in RLL mode ?
That, and sometimes, changing the execution order (at boot time) of multiple BIOS'.I thought changing the BIOS Address location with the jumpers is only meant to avoid conflicts with other ROM devices connected