Trying to identify which A2000 Version I just got

[mrnukem]

Just purchased an Amiga 2000 as an upgrade from my old Amiga 1000 but I am a bit confused as to which version I have (A,B or C). I looked on a few different pages but it seemed like there was conflicting information on the different web sites.

I ran the Advanced Amiga Analyzer Diagnostics Software and this is what the Config Section told me I have.

Rom v34.0
Angus ECS 1M
Denise 8262 OLD
CPU 68000
FPU None
Display NTSC
1015K Chip Memory

Also when I boot it asks for WB v1.3 and boots just fine on 1.3 but will not take 2.0 or higher. I see Kickstart chip upgrades on Ebay all the time for around $20.00. What would I look for to upgrade to Kickstart v3.1 or higher (how high can I go?)



Thanks for the help. Many of you have helped me in the past with my Amiga 1000 questions.

[Damion]

If it has 1.3 kickstart and an OCS Denise, chances are it's a 4.x motherboard. (Red power LED is another good indication.)

Best way to tell is just open it up and take a peek.

[Tahoe]

Check at the back; if it has 2 audio jacks it's a revision A (German model). If it has 3 (left/right/composite video) it's a later west-chester model.

Actually they are not really called B, or even C. Technically speaking it would be a CR (cost reduced) model. To know for sure what revision you have you'd have to open it up.

Judging by your Agnus revision though, you have a CR machine. The Kickstart is a little old though, on Ebay US there is someone selling 3.1 ROMS for 19,95, not a bad deal. (that as high as it will go)

[looppl]

SURE,YOU HAVE RIGHT VERSION!:)

[CLS2086]

seems to be between rev 4.3 (update to ECS) and 6.3 (kick2.0)
Take look at the pictures on amiga-hardware.com

[Kronos]

@Tahoe

The "CR" identifier was never used on the A2000 (only CDTV and  A4000D AFAIR).

The mobo of West-Chester-version is labelled B2000, so thats where that came from  ;-)

[Damion]

Sidenote @ Tahoe:

I'd seen your site before, but didn't know it was yours. _AWESOME_ collection you have! :pint:

[mfletcher]

Just took a look at Tahoe's website... WHOA!

Now thats a collection. I think Doomy would turn green with envy at what you have... so much so, beware of strange men singing "Only Amiga" in your garden at night!

[mrnukem]

It has 2 Audio and 1 Composite Video Jack.

I looked inside and in the front right corner on the motherboard it says (c) 1988 Commodore Computers.

My main concern is that I did not get a German Revision A as from what I read that version had some problems.

Think I got a good deal. $50 for the A2000, Mouse, Keyboard and it has 2 floppy drives. $40 for shipping so $90 total. So far I like it much better than my Amiga 1000

Would this be the Kickstart upgrade I need?
http://cgi.ebay.com/Amiga-kickstart-Rom-3-1ver-40-63-Amiga-2000-USED-WORK_W0QQitemZ220238695337QQihZ012QQcategoryZ4193QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Would I just swap out the chips or is there any other modification I would have to do for the upgrade?


Thanks for all the replys folks!

[Matt_H]

You don't have the A model, don't worry.

That ROM should be fine and it should be a simple swap. Some motherboard revisions need to have pins 1 and 31 of the ROM connected, but I'm not sure which ones. The ROM installation instructions, if not included, are all over the web and will tell you.

[1NOM155]

Kronos wrote:
@Tahoe

The "CR" identifier was never used on the A2000 (only CDTV and  A4000D AFAIR).

The mobo of West-Chester-version is labelled B2000, so thats where that came from  ;-)

Read this...

(This was the original A2000-CR (Cost Reduced) that I designed. - Dave Haynie (Commodore Engineer))

For more info see Link 1 and Link 2.

[adolescent]

The 4.1 and 4.3 motherboards (at least) say B2000-CR on them.

[Damion]

adolescent wrote:
The 4.1 and 4.3 motherboards (at least) say B2000-CR on them.

As does the 6.3 sitting here.

Kronos.. I'm afraid j00 have just been pWnd

[Zac67]

The "CR" designation went to the American (A500 based) "B2000", as its chipset was much cheaper than the (A1000 based) very early German A2000's. So probably all 4.1+ revs wear "CR".

The community called the B2000 "A2000B" and later, when it was fully ECS'ed (1 MB Agnus, Hires Denise, Kick 2.0) "A2000C", but this was never officially used.

[mrnukem]

I have the worst luck. Got home today to find that it now gives me disk read errors on any disks I put in. I had left it on with a demo running and on reboot it trys to read the disks  but gives a read/write error on known good disks that worked on it as of yesterday. Guy sold it as-is on e-bay but said floppy disk worked. Neither of the 2 drives it it work so I think the issue is the controller chip and heat. I was all stoked and excited too and now I am out $90 total.

Baby Jesus hates me...