Path: utzoo!utgpu!watserv1!watmath!att!att!rutgers!mit-eddie!uw-beaver!sumax!davidy
From: davidy@sumax.UUCP (David L. Yee)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: GVP Series II/A2000 problems
Keywords: GVP, A2000, 4.3
Message-ID: <1486@sumax.UUCP>
Date: 4 Nov 90 03:23:46 GMT
References: <1484@sumax.UUCP>
Reply-To: davidy@sumax.seattleu.edu.UUCP (David L. Yee)
Distribution: na
Organization: Seattle University, Seattle, WA
Lines: 34

In article <1484@sumax.UUCP> davidy@sumax.UUCP (David L. Yee) writes:
>
>	(Apologies if this has already been discussed- I missed a few days
>	worth of posts, and you know how the traffic is......:^)
>
>		I am in need of some help and or information. I just recieved
>my GVP Series II hardcard with on-board memory exapansion. This is the new one
>with DMA access. Anyway, it refused to operate with the memory installed and
>the memory configuration jumpers set appropriately. If I disabled the RAM
>jumpers, or removed the RAM entirely, the card booted and runs fine.
>	 I have a rev 4.3 motherboard. Gary said that Commodore made a
>	   number of 4.3 motherboards without a certain resistor. This
>	  resistor is a 470 ohm, 1/4 watt resistor that (I believe) he said
>	  was supposed to be connected to the DTACK line of the 68000 (My
>	  memory on the DTACK portion is a little hazy, the rest is not.)
>	  Anyway, here is approximately where it should go:

	Well, no word from Commodore, but some desperate experimentation
may be of some interest. By axing the FastMemFirst command from startup-sequence
, the A2000 booted! 3 Megs (well, 2.8 anyway) now mine to command! But--------

	It didn't work out. Big graphics applications died, like Photon Paint,
Digi-Paint 3, and PageSetter II. They either gurued right off the start or
died later on. The GVP supplied ramtest showed mucho bad RAM, yet, avail
and mergemem showed all the RAM there. Running FastMemFirst at any time
kills off the system. So, if you are desperate, you might try removing the
FastMemFirst command. If it works for you, please let me know via email. A
follow up call to GVP Monday, to try and pin this down and see what they
think of this little anomaly.

					Thanks All,
					----DLY----
					David L. Yee
				email to: davidy@sumax.seattleu.edu