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Author Topic: Amiga 3000 Daughterboard rev 7  (Read 1218 times)

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Offline BenTTopic starter

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Amiga 3000 Daughterboard rev 7
« on: February 28, 2016, 04:46:18 PM »
Hello,

I got an Amiga 3000 and I am a little confused when reading on http://amiga.resource.cx/mod/a3000.html that rev 7 wasn't sold to the public. Looking in my A3k there is a rev 7, not 7/01 and the I begin to wonder if it really is a buggy rev 7 or a maybe a modified rev 7. See pic.
I have tried to use zorro-cards but when I have both x-surf 100 and Bigram+ I get all kinds of strange problems (yes I have a Buster 11) but it might be the PAL-chips or this or that... but if the daughterboard is a buggy one I have to replace it first of all with a rev 7/01.

Any suggestions?

Best,
Bent
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Offline jltursan

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Re: Amiga 3000 Daughterboard rev 7
« Reply #1 on: February 29, 2016, 07:53:52 AM »
In fact it must be not so rare as I have the same daughterboard rev7 in my original A3000-16Mhz.
Never has failed, the machine was overclocked to 25Mhz, upgraded with a A3640 and has been fully populated, both onboard RAM and Zorro boards (right now, an Opalvision, a genlock and an AT-BUS 2008 boards). The AT-BUS has been maxed out and this way I've get rid of an old A2058 board.

So, do you have these problems only when x-surf and Bigram are placed togheter?
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Offline mechy

Re: Amiga 3000 Daughterboard rev 7
« Reply #2 on: February 29, 2016, 06:02:18 PM »
Quote from: BenT;804806
Hello,

I got an Amiga 3000 and I am a little confused when reading on http://amiga.resource.cx/mod/a3000.html that rev 7 wasn't sold to the public. Looking in my A3k there is a rev 7, not 7/01 and the I begin to wonder if it really is a buggy rev 7 or a maybe a modified rev 7. See pic.
I have tried to use zorro-cards but when I have both x-surf 100 and Bigram+ I get all kinds of strange problems (yes I have a Buster 11) but it might be the PAL-chips or this or that... but if the daughterboard is a buggy one I have to replace it first of all with a rev 7/01.

Any suggestions?

Best,
Bent

Rev 7 is common in the usa. they were sold to the usa. From memory it was early machines with a buster6 that were dealer only,but the 3000 was hot so they sold them as well.
my rev7 never had a hiccup with buster 11 etc.

Xsurf-100 seems problematic in many machines. zoram tho has been rock solid for me.

I doubt its the pal chips,but its a good upgrade. have you tried every slot on the daughter card?
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Offline BenTTopic starter

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Re: Amiga 3000 Daughterboard rev 7
« Reply #3 on: March 01, 2016, 10:13:05 AM »
@jltursan & mechy
Ok, good to know :) I was worried that my daughterboard was a buggy one.

Mostly I have trouble with scsi-read error that shows up when tha A3k has been working for a while. But the trouble I have with X-surf and BigRam is that the scsi-read-errors show up faster. I have no zip-memory, only fastram through BigRam.

But my thoughts about the daughterboard is that if I have x-surf in a slot closer to my mainboard the A3k recognize the ram but if I try to save files to my ram-disk they just disappear. If I put Bigram in a slot closer to the mainboard it ram-disk works. I have tried  all slots.

But if the daughterboard not is a faulty one then maybe the zorro-slots needs cleaning or there is something else that needs to be fixed.

In any case I have sold my x-surf with bigram to a friend who has an A3k in much better shape and my guess is that they will work perfect in his A3k :)

Best,

Bent
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