Atari STe 1040 trashing UltraSatan SD card

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exxos
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Re: Atari STe 1040 trashing UltraSatan SD card

Post by exxos »

@zChris IMP DMA's don't work in STE's.. Have you have that in since the beginning ?
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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
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Re: Atari STe 1040 trashing UltraSatan SD card

Post by zChris »

Yeah, it came with that.
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Re: Atari STe 1040 trashing UltraSatan SD card

Post by exxos »

zChris wrote: Tue Jul 12, 2022 7:54 pm Yeah, it came with that.
That is probably where your problems started from. The fixes are for the -38 DMA which is normally fitted to STEs. The IMP won't work in a STE. At least the tests I did, I don't think the hard drive worked at all, maybe even killed the floppy drive as well. So someone has likely screwed with that machine already. Likely it originally had DMA issues originally when it had the -38 DMA in it and someone's "fixed it" by fitting a IMP DMA which will malfunction even worse than the -38 in a STE.
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Re: Atari STe 1040 trashing UltraSatan SD card

Post by zChris »

Alright, that's a real shame. But it should still boot right?
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Re: Atari STe 1040 trashing UltraSatan SD card

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zChris wrote: Tue Jul 12, 2022 8:44 pm Alright, that's a real shame. But it should still boot right?
Yep.
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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
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Re: Atari STe 1040 trashing UltraSatan SD card

Post by zChris »

Does the STe still show a white screen if the DMA chip is missing from its socket ?

/zChris
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Re: Atari STe 1040 trashing UltraSatan SD card

Post by exxos »

zChris wrote: Wed Jul 13, 2022 8:58 pm Does the STe still show a white screen if the DMA chip is missing from its socket ?
IIRC it doesn't boot without the DMA. But not 100% sure without trying it.
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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
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Re: Atari STe 1040 trashing UltraSatan SD card

Post by zChris »

I was thinking i better ask this before i try it. Is there a chance that putting back a 2.2kOhm might help since it work with that at first :P
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Re: Atari STe 1040 trashing UltraSatan SD card

Post by Steve »

I think you've broken a trace when swapping the 2.2k with 1.2k. swapping back increases the chance of doing more damage. It worked before, so surely a trace has to be at fault.
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Re: Atari STe 1040 trashing UltraSatan SD card

Post by exxos »

If you are definitely sure you have the 1.2K pack ( and the correct bussed type - I assume you got it from the store?) and assuming you have it greatly orientated then as Steve suggests, it may be best leaving it alone. It does sound like you have damaged a track.
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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
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