Which slot is the video slot ?

[THX1138]

I have a 1500\2000 and on the motherboard has these slots
listed from left to right looking from the front of the computer.

1 x inactive XT isa slot
1 x inactive XT isa slot
1 x inactive AT isa slot inline with zorro II
1 x inactive AT isa slot inline with zorro II
1 x zorro II slot (Is this the video slot ?)
1 x zorro II slot
1 x zorro II slot
1 x processor slot

Can someone confirm which one is meant to be the video slot ?

Also...what would happen if i put this in one of the other
zorro II slots and not the video slot ?

The graphics card i am trying to put into this computer
is a Cybervision 64/3D.

Whenever i put this card into the machine i get random crashes...

Would Super Buster 11 solve this ?

[RetroMan]

You should be able to use the CV64/3D in ANY of those Zorro II Slots, the Video Slot is for the Scandoubler/Flickerfixer and is located to the right of the PSU

The SuperBuster 11 Issue is an A4000 only thing, this got nothing to do with A2000 .... SuperBuster 11 fixes some errors in DMA Timing for Zorro III Slots/Cards which the A2000 doesn´t have

[THX1138]

Hmmmm......so why does it crash ?

Is it because i already have 8 meg of memory (1meg chip,7 meg fast) and there isn't any more room for the 4meg Cybervision card ?

[RetroMan]

Just had a look into the manual and yes, that may be the clue

First make sure the CV64/3D is using the first ZII Slot right beside the CPU Slot (recommended) and then take out 3MB of Fast Mem, Chip Mem isn´t a problem .... so that you got only 4MB Fast left .... now put in the CV64/3D and go into the Early Startup Menu and have a look if your card is working correctly ....

[THX1138]

Early startup menu reports 8512\67 (Cybervision card) is working correctly....

Won't even boot up now....just comes up with a window with
an error message in it !

Before,it was actually loading into workbench.....but as soon as i try to enter the workbench screenmode in preferences or the picasso96 settings it would crash straight away !

[THX1138]

Put it back as it was.....

I have 4 meg on my scsi controller and 4 meg on my 68030 accelerator.

Disabled the 4 meg on the accelerator (didn't want to do this)
and the graphic card runs like a dream !

Only problem now is that my Amiga is running as slow as shit !

hahaha......

Any ideas why the graphics card doesn't seem to like the
memory on the accelerator card ?

[RetroMan]

If you want more memory, you need to get hold of an accelerator that uses 32Bit Memory, like the Blizzard 2040/2060 for example, most 030er cards only support 16Bit Memory and so do most SCSI Controllers ....

And the A2000 can only adress 8MB of 16Bit Fast Ram

[THX1138]

And the A2000 can only adress 8MB of 16Bit Fast Ram

But the 2000 can address more than 8mb of 32bit fast ram ?

The thing is my accelerator is the Impact 3001 ,which i think is
32 bit ?

[RetroMan]

Originally posted by THX1138
But the 2000 can address more than 8mb of 32bit fast ram ?

The thing is my accelerator is the Impact 3001 ,which i think is
32 bit ?

Hmmm, I just saw a little note on the Impact 3001 box, maybe this is true for A1500/A2000 also

[THX1138]

seems to be running stable with the following adjustment....

1 out of the 4 - 1mb simms on the accelerator card was different,

So,i took them all out and put a pair of exactly the same simms
back.

The machine now has :

1 mb chip ram
2 mb fast ram (accelerator)
4 mb video ram (Cybervision 64\3d)

Its ashame i can't put no more than 8mb in this machine though

[Jope]

The video slot is the lone slot between the power supply and the right edge of the case.

The CV64/3D however is a Zorro card, you don't need a video slot for that.

The optional scandoubler module would plug into a video slot, but it doesn't work with the A2x00..

[Jope]

Originally posted by RetroMan
Hmmm, I just saw a little note on the Impact 3001 box, maybe this is true for A1500/A2000 also :confused

The A1500, A2000 and A2500 are the exact same machine, just with different expansion cards out of the box.

[THX1138]

So....is 8mb the maximum that i can put in my A2000 ?

[Jope]

Originally posted by THX1138
So....is 8mb the maximum that i can put in my A2000 ?

8MB is the maximum 16bit FAST RAM that the A2000 can directly address. Hence the total size of your Zorro II boards must not exceed this amount.

You can fit a lot more RAM on a good 32bit accelerator, however! I have 64MB on my Blizzard 2060. I only have a CV64/3D and a GG2+ card in the Zorro II slots, so I still have plenty of 16bit space. :-)

Some older accels map the RAM low by default, however.. Perhaps there's a jumper to make the RAM show up somewhere high in the address space.. Then you might need a separate util to add it to the memlist if your accel is too old to automatically add it.