I did but I also have a damaged DMA and WD1772.
Based on chaos down the DMA / WD1772 path having the buffers should protect from frying any more chips.
I did but I also have a damaged DMA and WD1772.
Based on chaos down the DMA / WD1772 path having the buffers should protect from frying any more chips.
Yes... Icky managed to get a blown DMA & 1772, this could happen due to the shorting of the DMA & 1772 databus.. so this fix will rule out and solve that issue. This will solve a issue which will likely bite someone in the ass at some point down the line anyway.. Atari used the buffering on each machine after the STFM.. So they clearly thought and knew of some problems there..
Here's what Icky said when I got the DMA running. I have to say I've had no trouble with mine and I've been pounding on it a couple days. Exxos have you gotten to the point you can try yours?
I agree the board is very solid under use
Good morning Icky. If its questionable I totally agree however I haven't had any issues. Board real-estate is precious and we shouldn't add fixes that are just in case. When all the boards are built and running we will have a better sample of operation reliably. You said yours is running reliably. What did you have to do to achieve the reliable operation, I know you were using a various different chips?
I do need to try a HDD but not at home until Monday now.