GVP hc+ 8 series II and A2000

[Pat the Cat]

Not unusual, typically is a loose SIMM module or ROM chip on the card.

Also, check ROM to see if has a little adaptor fitted for 32K sized GuruROM, as opposed to more typical 16K GVP ROM. Even those sometimes need an update, for removable media I think.

http://amiga.resource.cx/exp/impact2000hc8

Ralph Babel page for download of ROMs and updated gvpscsi.device files;-

http://babel.de/amiga.html#gvp

[utri007]

If not yet said, some old A2000 computers need a connect two rom's pin with jump wire.

[guest11527]

If not yet said, some old A2000 computers need a connect two rom's pin with jump wire.

As far as I recall, that only goes for some A500 boards. The more interesting question is now: Is this a ROM for an A2000? And which board revision are we talking about?

A3000 or A4000 ROMs cannot be used in A2000's, for example.

[Pat the Cat]

As far as I recall, that only goes for some A500 boards. The more interesting question is now: Is this a ROM for an A2000? And which board revision are we talking about?

A3000 or A4000 ROMs cannot be used in A2000's, for example.

Very important point. There are several versions of the "A2000" out there, and while they can all be modified to rev 6, on some of the earliest versions it is a long, tough job. Most are Rev 5, but there are still rev 4 German made units out there that have NEVER been modified.

https://en.wikipedia.org/wiki/Amiga_2000#Amiga_1500

Bottom most link off that is slightly more detailed.

https://en.wikipedia.org/wiki/Amiga_2000#Amiga_1500

In all honesty - I have yet to meet an "honest trader" when it comes to selling retro computer hardware, in the sense of knowing exactly what kit they are selling. Maybe I just met the wrong people.

[Oldsmobile_Mike]

There are several versions of the "A2000" out there, and while they can all be modified to rev 6

Sorry Pat, go back and check your schematics again, this information is incorrect. Rev. 6 is completely different board layout from Rev. 4.  The only way to "modify" would be to replace the motherboard. :lol:

http://amiga.resource.cx/mod/a2000.html

Most boards I've seen in the US seem to be >6, I think Europe has the greater number of older boards. But that's just FWIW IMHO.

[Pat the Cat]

If not yet said, some old A2000 computers need a connect two rom's pin with jump wire.

A2000 revisions below 6 can need pins 32 and 21 connecting. On the ROM connector. It's hardly a major fix.

; For the revisions 3 and 5, pins 1 and 31 must be connected to the base. To the
  ROM pin 31 and connect it to pin 21. No additional connection is required for revisions 6A and higher.

If the machine is OK with Kickstart 2, it can use 512K ROM, so that does not need fixing.

So maybe is 1mb size 3.1 ROM. Or just broken 3.1 ROM in 512K size. What is part number on chip?

If it is 1mb ROM, can be implemented less easily with this (necessary if 3.9 ever installed on machine);

http://members.iinet.net.au/~davem2/overclock/A2000Kickstart.html

[toples50]

The chip says Kickstart v40.63 Amiga 500/600/2000 1993-1994 Escom AG.My Amiga is B2000-CR rev6

[RiP]

Odd, then isn't 1mb 3.1 rom compatible with A2000 rev6 512kb?

[Oldsmobile_Mike]

Odd, then isn't 1mb 3.1 rom compatible with A2000 rev6 512kb?

1MB ROM's are few and far between. Pretty much all custom jobs. I doubt this is your problem. IMHO buy a regular 3.1 ROM from AmigaKit for <$20 bucks and pop this in, see if this rules out the problem with an incorrect or defective ROM.

[Pat the Cat]

One oddity I noticed - the part no. covers all 3.1 ROMs fitted to A500, A600 and A2000 by Escom... but...

... Amigakit don't appear to sell an A600 version. They do separate versions for A500 and A2000?

http://amigakit.leamancomputing.com/catalog/product_info.php?products_id=157

So  maybe it's a pull from an old A600, an original part - but if your  Amiga doesn't have a PCMCIA interface like a real A600, it won't start  up. Because it's trying to initialize a port that isn't fitted?

That's another possible reason. I guess if you did it the other way around, an A500 ROM would startup  an A600 OK, but you wouldn't get the PCMCIA port working in a hurry... Something like that, maybe.

[Oldsmobile_Mike]

... Amigakit don't appear to sell an A600 version. They do separate versions for A500 and A2000?

A600 ROM is listed on their page right under the one for A500/1500/2000.

http://amigakit.leamancomputing.com/catalog/index.php?cPath=25

[toples50]

Finally it worked.I have new problems now.The HDToolBox can't see the hard disk so I formatted from Workbench. I tried then to install  Workbench to the hard disk but still no boot..The previous owner had two partitions and the machine booted normally.Also I have not light from the front led...(when the HD working).Do I need the disk hat came with the card?Unfortunately i don't have it.

[Oldsmobile_Mike]

The HDToolBox can see the hard disk but Workbench installed normally to the hard disk.

?

Also I have not light from the front led...(when the HD working)

Check that the wire going to the LED is plugged into the appropriate connector on the HD controller?

[guest11527]

One oddity I noticed - the part no. covers all 3.1 ROMs fitted to A500, A600 and A2000 by Escom... but...

Which is no miracle, since the ROMs of all three machines are identical. Even the A2000 and A500 include the IDE scsi.device, except that it is not used.

... Amigakit don't appear to sell an A600 version. They do separate versions for A500 and A2000?

If these are original 3.1 ROMs without any "improvements", then there is no need to.

[Pat the Cat]

Which is no miracle, since the ROMs of all three machines are identical. Even the A2000 and A500 include the IDE scsi.device, except that it is not used.


If these are original 3.1 ROMs without any "improvements", then there is no need to.

Somewhat bad news if people want to run an A570 with 3.1 - surely they have to cook their own ROM to remove the "new" SCSI device?

I do so hope this is the case. Because I have an A570....

[toples50]

Do I need the original disk that came with card to format the hard disk with HDToolBox?The HDToolBox can't see the hard disk.I've seen the icons in the Workbench normally but I can formatted the hard disk via HDToolBox.