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.

1040STE don't like floppy drive

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