A1200: memory expansion card problem

[lmn128]

Hello,

I have Commodore A1200 mb revision 2B. A1200 works perfectly but when i use Ram expasion card Alfaram1200 or Amitek Hawk than a1200 don't work correctly. Cards works fine on another a1200.

Thanks for help

[swift240]

Can you be more specific ?
In what way dont it work properly?
Does it boot up at all?
Are there any certain coloured screens on attempting boot up?
Do you have a HD ?
Have you tried a Floppy boot up disk like Workbench ?
PSU maybe ?

Get back to us.


Mike.

[lmn128]

Can you be more specific?
When I use ram expasion card read HD errors are present and some SW crashed
Are there any certain coloured screens on attempting boot up?
No, boot up is without color message
Do you have a HD?
Yes, I have Compact Flash card
Have you tried a Floppy boot up disk like Workbench?
I boot some demos from floppy. Some does'n work correctly.

[swift240]

At first I would suggest changing the ram you have.
I had a nice 32Meg 72 pin, then it went belly up, then HD was giving me trouble, got a new 32Meg 72 pin, no problem after that.

If your memory is the actual problem then at times (not certain how this works) there is simply not enough ram to handle any thing in the correct way, hence HD not loading in all its OS.

Mike.

[SuperTurbo]

It might be a buggy revision of the mb you got... I have a rev. 2B mb which did not work with Apollo 040 cards. The computer just kept on crashing. Worked fine with Blizzard 060 though, I was told by the store where I bought the Blizzard a long time ago that my mb rev. was faulty from the factory.... it also didn´t work with an external scandoubler... not sure exactly why though...

If you can get another RAM card or accelerator then try it instead...

[alexh]

You cannot use the PCMCIA port on the left hand side of the computer and either of those two RAM cards if they have more than 4mbytes on them.

They are NOT PCMCIA friendly.

Remove your Compact flash card and see if that helps.