1040STE don't like floppy drive

doc · Post by **doc** » Mon Sep 21, 2020 10:08 am

I read that IMP DMA are not suitable for STE.

Cosmic Puppet · Post by **Cosmic Puppet** » Mon Sep 21, 2020 10:11 am

JezC wrote: Mon Sep 21, 2020 10:05 am I think that seller also has/had a few IMP DMA chips available .. which might be better than the link (which claims to be for an STM only?)

Glad you noticed that @JezC I forgot it was for an STE.

JezC · Post by **JezC** » Mon Sep 21, 2020 10:30 am

doc wrote: Mon Sep 21, 2020 10:08 am I read that IMP DMA are not suitable for STE.

Good point... forgot that important point...but if there is another STF/M available, might be OK to swap the DMA from that & put an IMP in that one maybe?

I'll shut up now...

Cosmic Puppet · Post by **Cosmic Puppet** » Mon Sep 21, 2020 10:38 am

JezC wrote: Mon Sep 21, 2020 10:30 am
doc wrote: Mon Sep 21, 2020 10:08 am I read that IMP DMA are not suitable for STE.
Good point... forgot that important point...but if there is another STF/M available, might be OK to swap the DMA from that & put an IMP in that one maybe?

I'll shut up now...

It was me confusing machines.

Post by **exxos** » Mon Sep 21, 2020 10:45 am

IMP DMA's do not work at all in a STE.

doc · Post by **doc** » Mon Sep 21, 2020 10:50 am

JezC wrote: Mon Sep 21, 2020 10:30 am but if there is another STF/M available, might be OK to swap the DMA from that & put an IMP in that one maybe?

I suppose it is a solution.

Cosmic Puppet wrote: Mon Sep 21, 2020 9:25 am Hi @doc If you email the seller he'll probably know the answer. Really helpful guy. He talked me through an upgrade I was struggling with last year.

I asked him and his answer is NO this is (C025913-20) not suitable for an STE.

Cosmic Puppet · Post by **Cosmic Puppet** » Mon Sep 21, 2020 11:08 am

doc wrote: Mon Sep 21, 2020 10:50 am
JezC wrote: Mon Sep 21, 2020 10:30 am but if there is another STF/M available, might be OK to swap the DMA from that & put an IMP in that one maybe?
I suppose it is a solution.

Cosmic Puppet wrote: Mon Sep 21, 2020 9:25 am Hi @doc If you email the seller he'll probably know the answer. Really helpful guy. He talked me through an upgrade I was struggling with last year.
I asked him and his answer is NO this is (C025913-20) not suitable for an STE.

Sorry for pointing you in the wrong direction.

doc · Post by **doc** » Mon Sep 21, 2020 11:40 am

No problem, the topic was to be opened. Now we know.
And I think it would be a great idea if we had a topic summerizing which DMA goes with which ATARI ... But perphas this topic already exists ?

What we know by now is :

C025913-38 : ST, STF, STFM, STE
C025913-20 : (Not STE)
C100110-001 (IMP) : ST, STF, STFM, (Not STE)

Feel free to improve the list ...

Cosmic Puppet · Post by **Cosmic Puppet** » Mon Sep 21, 2020 11:51 am

doc wrote: Mon Sep 21, 2020 11:40 am No problem, the topic was to be opened. Now we know.
And I think it would be a great idea if we had a topic summerizing which DMA goes with which ATARI ... But perphas this topic already exists ?

What we know by now is :

C025913-38 : ST, STF, STFM, STE
C025913-20 : (Not STE)
C100110-001 (IMP) : ST, STF, STFM, (Not STE)

Feel free to improve the list ...

Found this:

https://www.ebay.co.uk/i/333337209719?chn=ps

Untested though.

With Exxos you know they work.

DoG · Post by **DoG** » Mon Sep 21, 2020 3:07 pm

Change cap in drive and clean the drive first before you buy new DMA if you haven't done that yet? Cheaper and smart to do anyway.

exxos's Atari, Amiga & retro forum

1040STE don't like floppy drive

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