Conference hydra::amiga_v1

Hi,

Does this work with the old 'Rectangular' Agnus chip ?

Dave.

    
    re .1
    
    	The MEG-A-RAM ( chip RAM Board ) requires that you remove your
    1 MB Fat Agnus and put a new ( Square ) 2 MB Super Agnus on the
    expansion board. The expansion board plugs into the Agnus socket.
    The Super Agnus chip is the same chip that the Amiga 3000 uses.
    
    		Steve Peters
    

Prices?  How much would this cost to do?

    
    
    	The MEG-A-RAM board cost about $250 then you need a Super Agnus
    chip ( about $120 ). I now have a 1 MB Agnus left over.
    
    		Steve
    

    
    
    	I've just upload to Tape::user2:[upload]2-meg-for-a2000.ps 
    a scanned image of the Grapevine Group Inc MegAChip 2000
    
    

    Steve,

	Would you think such a configuration should work in an A500, too? I have
    set mine into a COMPTEC case (together with drives, add-on memory and
    power supply) with lots of space to spare. So the board would fit.

re .4

    If an A500 doesn't work with a 2 MB Agnus and your 1 MB Agnus is still
    available, would you sell it?

	Roland

    
    re .6
    
    	Yes, I think the 2 MEG chip would work in a A500. The question
    is space. If you already have a new case for the 500 this shouldn't
    be a problem.
    
    	As for the 1 MB AGNUS, I have one person make an offer but it
    may fall through. Send me mail and you can be the next in line.
    	1 MB AGNUS  $60 + shipping
    
    
    			Steve Peters
    

There seems to be a problem on the TAPE::USER2: disk.  I am trying to copy
the TAPE::USER2:[UPLOAD]2-MEG-FOR-A2000.PS file and I am getting the following
error message:

%COPY-E-READERR, error reading TAPE::USER2:[UPLOAD]2-MEG-FOR-A2000.PS;1
-RMS-F-RER, file read error
-SYSTEM-F-FORCEDERROR, forced error flagged in last sector read
%COPY-W-NOTCMPLT, TAPE::USER2:[UPLOAD]2-MEG-FOR-A2000.PS;1 not completely copied

If there is a good copy of this file available somewhere, I would appreciate
if it could be copied to TAPE again.

John

> %COPY-E-READERR, error reading TAPE::USER2:[UPLOAD]2-MEG-FOR-A2000.PS;1
> -RMS-F-RER, file read error
> -SYSTEM-F-FORCEDERROR, forced error flagged in last sector read
> %COPY-W-NOTCMPLT, TAPE::USER2:[UPLOAD]2-MEG-FOR-A2000.PS;1 not completely copied


(Sound of trumpet playing funeral march) it's toast :-)

john

    
    Hi You could try the original on 
    
    Arrods::disk$userdisk1:[goldstein.tape]2-meg-for-a2000.ps
    
    	Regards
    	Steve G

    I re-uploaded an archived version of the Megachip 2000 ad as
    
    	TAPE::USER2:[UPLOAD]2-MEG-FOR-A2000.ZOO
    
    It's an archive mostly to save space.  A chat with Grapevine Group
    reveals that they have these boards in stock at $339 and will rebate
    $45 in return for a 1 meg Agnus.  They also sell through dealers with
    no Agnus rebate.
    
    The ad says "Amiga 500 version available soon."
    
    Is the same or different than the board discussed in .0?
    
    Wes

    I just bought a MegaChip 2000 and am extremely pleased with it.  I was
    a little concerned that there might be a "gotcha" going from an old Rev
    4.3 motherboard with only 512K of chip to the full 2 megs of chip, but
    I had absolutely no problems getting it to work.  Two observations,
    however are in order:
    
    1.  I have an old CMI 14Mhz accelerator board.  The two can't be used
    together, then their boards overlap at the same height.  Any extender
    available for the 68000 socket to raise it up about 1/4"?  The CMI in
    my benchmarks only adds about 25% performance boost, so it was no big
    loss, but sometimes that 25% is all the difference.
    
    2.  I had thought that like the 1M Chip upgrade that simply decreases
    my fast ram by 512K and increases my Chip ram by 512K that my 3MB
    system would be 2 MB Chip and 1MB fast.  But to my pleasant surprise,
    the Megachip 2000 adds 1MB of total ram to my system.  I know have 2MB
    chip ram and 2MB fast ram.  If I would have know that up front, it
    would have made the decision between just a 1MB Fatter Agnus and the
    MegaChip 2000 a lot easier.  (It took me months to decide to spend the
    extra money and get 2MB Chip)
    
    2 megabytes of chip ram is heaven in a multitasking graphics
    environment (with MIDI)
    

    Re .12:
    
>   1.  I have an old CMI 14Mhz accelerator board.  The two can't be used
>   together, then their boards overlap at the same height.  Any extender
>   available for the 68000 socket to raise it up about 1/4"?  The CMI in
>   my benchmarks only adds about 25% performance boost, so it was no big
>   loss, but sometimes that 25% is all the difference.
    
    How about using a socket as an extender?  That should give you just
    about the right height difference and it's eminently cheap.

    Just have the German Amiga-Magazine in front of me looking at an
    ad of PULSAR for the so called "RetroChip 2000" which is a board
    for the 2MB-Agnus and 1 MB Memory (8*511000). It is not clear if
    the Agnus is included; they want DM 649,- (that's ~ $380)
    I think it's a bit overpriced isn't it? Are we talking about the
    same hardware. The Amiga-Magazine reported some problems with
    older B2000 motherboard-revisions. I think i wait 6 month to check
    if there is a price decrease; DM 450,- including the Agnus will
    be a fair price.
    
    Ralf
    ====

    
    	About $380 without the 2MB Agnus sounds about right. This board is
    not new and I don't expect the price to go down.
    
    		Steve P.
    

    OOUUps,
    so i have to wait for the 1990 tax refund or the 1991 "christmas-money"
    :-(
    What about the installation of this board? As far as i know, it sits
    on the motherboard over the old (512k-Agnus). Do i have to cut
    circuits in the same way like for the 1MB-Agnus installation?
    (mean doing the upgrade in the following order:512k-1MB-2MB)
    Or can i "jump over" the 1MB?
    
    Ralf
    ====

    From the pictures, it seems you remove the "old" Agnus and plug this
    board in the empty socket, after you attach a small wire to a location
    on the motherboard.  The small wire has a clip on it's end for that
    purpose.
    
    Jean
    

    re. 16, 17
    
    I just installed one going from 512K to 2MB in one step (see .12) on a
    rev 4.3 motherboard and have experienced no problems.  I paid $340 here
    in the US and would have gotten $45 back if I had a 1M Agnus.  That
    price included the 2MB Agnus chip.  I was told to keep my 512K Agnus,
    that they were considering trading those in in the near future, but I'm
    not holding my breath.
    
    The board fits into the Agnus slot, you then change some jumpers and on
    older boards (like mine) there was a trace that needed to be cut with
    an exacto knife (no big deal).  Then there is a wire coming from the
    board with this clip on the end that clips onto a pin on the Gary chip.
    
    Now I can multitask almost anything!
    
    Terry