Need some advise for my Mtec T1230/28 turbocard

[paul1981]

I tried everything. Used a working 4mb 60ns and a 4mb 70ns simm modules. Both simm modules work with my 1220 card.

Cleaned the slot of the simm connector and also the main slot of the card.

I even replaced two IC's with are placed on a socket.

Jumper setting should be MEM0 and MEM1 connected. The rest open.

I think this Mtec 1230 has seen his last days

Have a really close look at the card, look at the tracks that lead to and from the SIMM socket, make sure that non are scratched and that the solder joints on each of the 72 pins look good with no cracks (SIMM socket solder joints). Check for corrosion or dirt on the SIMM socket contacts too, although unlikely.
Also, check the actual jumper pins for corrosion, and try different jumpers in case they have dirt or corrosion. Try the 2MB setting (M0 and M3 closed).

Is the Amiga actually detecting the card? Does the clock work? If you type 'cpu' into a Shell, does it say it's a 68030 and 68881/2?

[Brian]

If you supply pictures of the top and bottom of your card its easier for us to see if something is wrong.

Make sure you haven't by accident closed MEM3 as it's off 1 jumper pair from the other MEM jumpers.

It's not that uncommon that accelerators have issue with surtan simms and the manual do talk about problem with surtan manufacturers so make sure that you try with more than just one or two simms before you conclude that the simm isn't the issue.

[Nick_66]

I have tried everything with this card. Cleaned all the connectors and I even soldered all the soldering on the board (main connector and simm connector).

Nothing works. When I press both mouse buttons at startup and click on Expansion Board Diag, nothing is displayed. When I do the same with my 1220 accelerator, there is some info displayed:

Board nummer = 1
Manufacturer = 8704
Status = working

With my Mtec 1230 nothing is displayed

This card is going to see the inside of my carbage can.

[Oldsmobile_Mike]

This card is going to see the inside of my carbage can.

Lots of lead in it, send it off to electronics recycling not a landfill!  Or maybe Stachu or someone else would like to take a crack at it?  

[Nick_66]

Lots of lead in it, send it off to electronics recycling not a landfill!  Or maybe Stachu or someone else would like to take a crack at it?  

No, of course it's not going into my carbage can I really care about are environment!

[paul1981]

No, of course it's not going into my carbage can I really care about are environment!

Try removing the FPU before totally writing the card off. Could be that the FPU is faulty.