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Need Amiga 1000 upgrading help

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C. Shrader

unread,
Sep 21, 2000, 3:00:00 AM9/21/00
to
Hi!
I have an Amiga 1000 with 2.5 megs Ram or so. It's clock is dead. I
recently booted it up in PAL mode and it told me that I didn't have an
updated Angus Chip so I should "run out right away and buy one". I also
have an Amiga 500. I remember NOT getting this message when I tried PAL
mode on it. It ALSO has a working clock! My question: Can I move the A500
RAM card/clock into the interior of the Amiga 1000 to add more RAM and/or
the clock that is working? If not, maybe just the battery itself?Can I move
the updated Angus Chip to the 1000? How hard is this to do? Any soldering?

Are there any Amiga shops left that do upgrade work here in the states?

Sorry I'm so full of questions! Just trying to finally get a decent Amiga
System running.

If you could email me with your comments, I'd be extremely appreciative.

Shra...@vic.com


Clockmeister

unread,
Sep 22, 2000, 3:00:00 AM9/22/00
to

C. Shrader wrote in message <39cab...@news.vic.com>...

>Hi!
> I have an Amiga 1000 with 2.5 megs Ram or so. It's clock is dead. I
>recently booted it up in PAL mode and it told me that I didn't have an
>updated Angus Chip so I should "run out right away and buy one". I also
>have an Amiga 500. I remember NOT getting this message when I tried PAL
>mode on it. It ALSO has a working clock! My question: Can I move the
A500
>RAM card/clock into the interior of the Amiga 1000 to add more RAM and/or
>the clock that is working?

No, not if it is a trapdoor expansion. The A1000 doesn't have a trapdoor
connector like on the A500. Expansions that plug onto the right hand side
expansion connector are generally interchangeable between the A500 and
A1000, although they will be fitted back to front (not upside down!)

If not, maybe just the battery itself?Can I move
>the updated Angus Chip to the 1000? How hard is this to do? Any
soldering?

The Agnus chip in the A1000 is not compatible with the one in the A500,
electronically or physically :-(
Theoretically, I suppose it could be done but it would require a serious
rework not to mention a fair degree of electronic engineering skill.

>Are there any Amiga shops left that do upgrade work here in the states?

I doubt anyone is willing to do such an upgrade now. Why not just use an
A500?

>Sorry I'm so full of questions! Just trying to finally get a decent Amiga
>System running.

Starting with an A1200 would be a better idea in that case.

>If you could email me with your comments, I'd be extremely appreciative.
>
>Shra...@vic.com
>

Regards,

Clockmeister.

Peter van der Burgh

unread,
Sep 22, 2000, 3:00:00 AM9/22/00
to
Hi!
About upgrading your A1000: First of all, I don't think your clock is
dead, because the original A1000's weren't shipped with a
realtime-clock, so you just don't have a battery backed up RTC.
And I don't think you have 2,5 megs RAM, that's probably either 256k
or 512k chipram.
Maybe you have a turboboard installed, but you didn't mention that, so
I presume it's just a plain A1000 (I must say it's a wonderful
machine, however).
You said you wanted to use the Ram/clock card from your A500 with your
A1000. Sorry, but that's not possible because the A1000 only has a
single psuedo Zorro-II type slot for controllers/turbocards etc. I
think your A500 has a trapdoor-based RTC/expansion memory-card, which
won't fit in your A1000. If you really want extra RAM, a turbocard w/
faster processor and/or RTC you can buy a card that fits on the front
expansion slot or the pseudo zorroII on the side, but those cards are
pretty hard to find these days.
I'm not sure if you can replace your A1000's Agnus with the A500 one.
But I do know you don't have to do any soldering, because the chips
are not VLSI (Surface mounted, like the A1200) but fitted in sockets
(PGA). So I do know the A500's chip will fit into the A1000's socket
but I never tried, so I don't know wether your A1200 will support PAL
and 512k/1MB ram or not.

Cheers!
Pipmastah

P.O.box 95338 - NL2509CH - The Hague - The Netherlands

Telefoon +31 70-347 5317 - Telefax +31 70-347 5319

On Thu, 21 Sep 2000 21:48:14 -0400, "C. Shrader" <shra...@jrail.com>
wrote:

>Hi!
> I have an Amiga 1000 with 2.5 megs Ram or so. It's clock is dead. I
>recently booted it up in PAL mode and it told me that I didn't have an
>updated Angus Chip so I should "run out right away and buy one". I also
>have an Amiga 500. I remember NOT getting this message when I tried PAL
>mode on it. It ALSO has a working clock! My question: Can I move the A500
>RAM card/clock into the interior of the Amiga 1000 to add more RAM and/or

>the clock that is working? If not, maybe just the battery itself?Can I move


>the updated Angus Chip to the 1000? How hard is this to do? Any soldering?
>

>Are there any Amiga shops left that do upgrade work here in the states?
>

>Sorry I'm so full of questions! Just trying to finally get a decent Amiga
>System running.
>

Anonymous

unread,
Sep 22, 2000, 3:00:00 AM9/22/00
to
--
On 23 Sep 2000 00:50:46 +1200, "Patrick Ford" <pa...@ihug.co.nz> wrote ...
> From: "Patrick Ford" <pa...@ihug.co.nz>
> Newsgroups: comp.sys.amiga.hardware
> Subject: Re: Need Amiga 1000 upgrading help
> Date: 23 Sep 2000 00:50:46 +1200
> Organization: Not a hell of a lot

> Message-ID: <39CBFE66.MD...@ihug.co.nz>

> Peter van der Burgh wrote:
>
> > I'm not sure if you can replace your A1000's Agnus with the A500 one.
>

> He can't.

Definitely not!

>
> > But I do know you don't have to do any soldering, because the chips
> > are not VLSI (Surface mounted, like the A1200) but fitted in sockets
> > (PGA).
>

> No it isn't . It is DIL


>
> So I do know the A500's chip will fit into the A1000's socket

Because the A500 has a different form factor from the
A1000 unless one of the motherboard or daughter board upgrades,
Phoenix or Rejuevenator has been installed there is no way to
upgrade any longer unless you are a skilled electronics technician.

>
> No it won't.
>
> > but I never tried,
>
> Probably nobody has.

There used to be a hack from Germany of course that somehow
added the necessary lines and got a modern socket in place.

One of the problems with doing anything with the A1000 is
that cheap sockets(molded) were used by Commodore. These may
crack with the tenderest of care when pulling chips. Then a new
socket will have to be put into place. Cracked sockets are not
an easy fault to detect but my old A1000 would not run until
the cracked socket of the 68000 was replaced. It was broken when
I added the Spirit board memory expansion.

later
bliss
--
bobbie sellers - (Back to Angband) *Team Amiga*
AWest (San Francisco's Amiga Users Group)
bliss at california dot com


--------== Posted Anonymously via Newsfeeds.Com ==-------
Featuring the worlds only Anonymous Usenet Server
-----------== http://www.newsfeeds.com ==----------

Patrick Ford

unread,
Sep 22, 2000, 8:50:46 AM9/22/00
to
Peter van der Burgh wrote:

> I'm not sure if you can replace your A1000's Agnus with the A500 one.

He can't.

> But I do know you don't have to do any soldering, because the chips


> are not VLSI (Surface mounted, like the A1200) but fitted in sockets
> (PGA).

No it isn't . It is DIL

So I do know the A500's chip will fit into the A1000's socket

No it won't.

> but I never tried,

Probably nobody has.


--
--


+ =================================+
|| Patrick Ford
|| Auckland,
|| Gnaw Thighland, NZ
+ =================================+

Clockmeister

unread,
Sep 22, 2000, 8:09:37 PM9/22/00
to

Anonymous wrote in message <39cbcb62_3@anonymous>...

>--
>On 23 Sep 2000 00:50:46 +1200, "Patrick Ford" <pa...@ihug.co.nz> wrote ...
> > From: "Patrick Ford" <pa...@ihug.co.nz>
> > Newsgroups: comp.sys.amiga.hardware
> > Subject: Re: Need Amiga 1000 upgrading help
> > Date: 23 Sep 2000 00:50:46 +1200
> > Organization: Not a hell of a lot
>
> > Message-ID: <39CBFE66.MD...@ihug.co.nz>
>
> > Peter van der Burgh wrote:
> >
> > > I'm not sure if you can replace your A1000's Agnus with the A500 one.
> >
> > He can't.
>
> Definitely not!

>
> >
> > > But I do know you don't have to do any soldering, because the chips
> > > are not VLSI (Surface mounted, like the A1200) but fitted in sockets
> > > (PGA).
> >
> > No it isn't . It is DIL
> >
> > So I do know the A500's chip will fit into the A1000's socket
>
> Because the A500 has a different form factor from the
>A1000 unless one of the motherboard or daughter board upgrades,
>Phoenix or Rejuevenator has been installed there is no way to
>upgrade any longer unless you are a skilled electronics technician.
>

Paula and Denise are interchangeable, Gary doesn't exist on an A1000 and
Agnus is completely different.


> >
> > No it won't.
> >
> > > but I never tried,
> >
> > Probably nobody has.
>

> There used to be a hack from Germany of course that somehow
>added the necessary lines and got a modern socket in place.
>
> One of the problems with doing anything with the A1000 is
>that cheap sockets(molded) were used by Commodore. These may
>crack with the tenderest of care when pulling chips. Then a new
>socket will have to be put into place. Cracked sockets are not
>an easy fault to detect but my old A1000 would not run until
>the cracked socket of the 68000 was replaced. It was broken when
>I added the Spirit board memory expansion.
>

I don't know what you did to break the 68000 socket, but with all the hacks
etc that my A1000 has undergone, I haven't broken one yet :-)

Regards,

Clockmeister.
http://www.tnet.com.au/~gerryvdb/amigen/a1000.html

Roger Nordin

unread,
Sep 24, 2000, 3:00:00 AM9/24/00
to
"Patrick Ford" <pa...@ihug.co.nz> wrote in message
news:39CBFE66.MD...@ihug.co.nz...

> > But I do know you don't have to do any soldering, because the chips
> > are not VLSI (Surface mounted, like the A1200) but fitted in sockets
> > (PGA).
>
> No it isn't . It is DIL

Actually it is both. VLSI does mean anything to do with the socket type, as
the original author seems to think as he compares it to PGA, which is a
socket type. VLSI stands for Very Large Scale Integration, and simply
relates to the transistor count. It's a measure of how complex the IC is.
Now DIL, as you correctly pointed out, is the name of the socket type.

> So I do know the A500's chip will fit into the A1000's socket
>
> No it won't.

With the help of a Rejuvenator board, it will. But they are impossible to
find anyways. The Rejuveantor offered upgradability to 1MB CHIP RAM using
the FAT AGNUS. A later version, the Rejuvenator II offered 2MB CHIP RAM
support. And some other stuff, such as Kickstart ROM, etc.

Regards,
/Roger


Paul Zager

unread,
Sep 25, 2000, 10:01:03 PM9/25/00
to
Roger,

>With the help of a Rejuvenator board, it will. But they are impossible
>to find anyways. The Rejuveantor offered upgradability to 1MB CHIP RAM
>using the FAT AGNUS. A later version, the Rejuvenator II offered 2MB
>CHIP RAM support. And some other stuff, such as Kickstart ROM, etc.

Just to keep the info straight. . . _ALL_ Rejuvenator's were the same,
except maybe for the programming of the PAL chips. There was a Kickstart
ROM socket on my very early Rejuv board, and the necessary sockets and
jumper for running Agnus as either 1 meg or two meg, depending on which
chip was in there. Mine came as a 1 meg, and later got upgraded to the 2
meg configuration just by getting new memory chips, new Agnus and
resetting a jumper.


Paul Zager

Proud Owner of Frankenthousand, the monster A1000
'030@50MHz, 2 megs chip/32 megs fast, 2 hard drives,
4xSCSI CD-ROM, SyJet, 56kHayes, 17" flicker free display

"Bride of Frankenthousand" A4000, Phase5 MarkIII '060@50;
2 megs chip/140 megs fast, PicassoIV, HD floppy, 4.5 gig SCSI3,
4.3 gig IDE, Concierto, 32x CD-ROM, GVP-I/O, GVP-4008SCSI, 17" KDS-VS7.
. .
all in a big black Toaster Oven case to compliment Frankenthousand

Roger Nordin

unread,
Sep 29, 2000, 6:16:09 PM9/29/00
to
"Paul Zager" <paul...@earthlink.net> wrote in message
news:1179.303T258T9...@earthlink.net...

> Roger,
>
> >With the help of a Rejuvenator board, it will. But they are impossible
> >to find anyways. The Rejuveantor offered upgradability to 1MB CHIP RAM
> >using the FAT AGNUS. A later version, the Rejuvenator II offered 2MB
> >CHIP RAM support. And some other stuff, such as Kickstart ROM, etc.
>
> Just to keep the info straight. . . _ALL_ Rejuvenator's were the same,
> except maybe for the programming of the PAL chips. There was a Kickstart
> ROM socket on my very early Rejuv board

Sorry for not expressing myself clearly, but that's really what I was
meaning as well, i.e. the Kickstart ROM and other stuff was part of _all_
Rejuvenators. :-) Just that the model II shipped with 2MB memory as well.

> chip was in there. Mine came as a 1 meg, and later got upgraded to the 2
> meg configuration just by getting new memory chips, new Agnus and
> resetting a jumper.

Didn't know that though, thanks for the info!

Too bad they are impossible to find. I have two A1000 machines here in the
basement that could be put to better use. Well, if I space in the apartment
to put them somewhere, but that's another matter.

Regards,
/Roger

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