A4000 sees my Zorro Boards no more !

[duesi]

My A4000 recognizes my A4091 the CV64 and the X-Surf no more ! (in the early startup menu I see only the Cyberstorm) now...
Damn !  What happened to my main computer ?

[Zadoc]

Ummm...do you have another Z2/3 Amiga to check those boards out?

I don't wan't to be a scaremonger, but I used to own an A4000 but I got rid of it after it destroyed a friend's Picasso II and my brand new GVP Spectrum...

My A4000 was pretty faulty and cost me alot of headaches and damages.  I moved to an A1200 tower setup and haven't looked back.

I hope your A4000 trouble isn't the same as mine was...

Hi.,

almost the same happend to me, only the turbo was present in the early startup; turned out to be the cybergraphics which was broke and somehow 'blocked' the remaining boards. after the CV removal everything was ok again...

[duesi]

I have tested all Boards on a 1200 with Zorro
they have (Working) Status :-)
In my 4000 none of them is recognized :-(

Which chip controls the Zorro-Slots ?

[Effy]

Try to remove your gfx card and Xsurf one by one and see what happens ...

[Zadoc]

Which chip controls the Zorro-Slots ?

I may be wrong, but I think it's the Buster chip.

Revision 9 is a bad Buster revision for an A4000, the upgrade to a Revision 11 is recommended for better Z3 handling.

[seer]

Try cleaning the contacts of the cards and the busboard (The contacts that connect to the motherboard and the zorro slots themselves)

Also reseat (sp?) the busboard maybe it has become lose (Usually only happens (rarely) if you open up your Miggy lots of times), and make sure all socketed chips on the motherboard and expansion cards are well seated.

If all else fails (offcourse do try one card at a time) remove the cyberstorm and replace it with the original CPU card if you still have it.

[duesi]

All still done

I tried with my original 030 CPU-Board
removed the busboard reseated it...
The state now is:
 I removed all cards
And have the Kickstart Screen
Using 030 or CS060.

[seer]

Well, could be that the buster is faulty, or the busboard itself... Only way to try that out is to swap those with another A4000...

None of the cards work alone in the A4000 in any slot ?

[duesi]

@seer
Well interpreted .

The other strange thing is that:
When I power on and press the Mousebuttons
I takes about 30 Sec. until the Early startup screen appears and the Picture is grey at this moment
I have never seen this effect before !

[patrik]

Check out this page where another guy has quite the same problem: http://wonkity.com/~wblock/a4000hard/excrdnot.html

Good luck!


/Patrik

[seer]

Not sure if this can be done, never tried it, but if you boot the A4000 without the busboard, and you press both mouse buttons does the Early Boot Menu appear faster ?

If it still takes 30 seconds, I guess the problem is the motherboard and then the Buster chip (Bus contoller chip as said before).. Not sure how expensive Busters are these days, but I reckon they are hard to come by nowadays...  

What reb. Buster you have inside the Amy ?

[duesi]

@seer
I have (or possibly had :-(  Rev.11 Buster

[seer]

Have a look at Patrik's link, but if I had to, I send my A4000 in for repair, not dowhat's in the link myself... (Except I would replace the Buster myself and the busboard as well before sending her to a repair shop)

[Piru]

When I power on and press the Mousebuttons
I takes about 30 Sec. until the Early startup screen appears and the Picture is grey at this moment
I have never seen this effect before !

I have. The system is probing for IDE devices. Plug in a IDE hd and the delay should be gone.