[comp.sys.amiga.hardware] Problem with HardCard and 2630 Accelerator

huck@csuvax1.csu.murdoch.EDU.AU (Neil Huck) (06/11/91)

Could somebody offer some advise?

A researcher at our Uni. purchased 2 addin cards for her Amiga 2000.
One was a Amiga 2630 accelerator card with 2Megs of 32Bit memory, and
the other a GVP Series II A2000-HC+8 hard card fitted with a 3.5"
100Meg SCSI Quantum harddisk but no added memory. Both were fitted
as per supplied instructions, including checking any jumpers (all
of which were in the correct position according to the manuals.)

THE PROBLEM! 

Each works perfectly on its own without the other installed, however when
both the accelerator and hard card are installed the Amiga crashes on bootup
always giving a Guru Error of the type 00000004.????????? which we take
to be an "Illegal Instruction" error.

We guess that it could be a memory addressing problem as the 2630 has 2Megs
of expansion ram and the hard card can hold up to 8Megs of expansion ram(though
none is added.) Yes we have checked the jumpers on the GVP hard card to check
that they are in the correct position for no added ram!

COMPLICATIONS

First the 2 boards were purchased from different supplier's !!??

The Amiga also has anouther 2Meg Ram expansion card added, however we have 
tested the machine with and without this card and it seems to make NO 
difference.

The Amiga also has a older 2090 hard disk controller card which is used
with a Segate ST225 20 Meg harddisk. We tryed booting with and without the 
drivers for this card but again it made no difference.

Finally the mother board in the Amiga is the 4-layer motherboard from
Germany. This requires that the 68000 CPU must be removed when installing
the 2630 accelerator card. We did this and the card works ??

Thankyou to anyone that can offer advice.

ps. Is there a 100Meg Hard Card that has extra memory and a 68030 and 68882
in one.
--
Neil Huck,                         huck@murdoch.edu.au
Computer Services Unit,            Phone  (09) 332 2767
Murdoch Uni., Murdoch, W.A.,       Fax:   (09) 310 2653
Australia, 6158