Super Agnus 8375

[Ilwrath]

Also, from what I understand, the 8370 was specialized NTSC and 8371 was specialized PAL.

From the 8372 and beyond, the Agnus chips are not specialized for NTSC or PAL, but adapt to whichever machine they are placed in.  (This is my understanding -- I haven't imported a PAL machine to test this, though!)

And plugging in a incompatible revision chip probably wouldn't damage anything, though the machine may not boot.  

That's not a free reign to go swapping stuff in a mess, though.  Plugging in a chip with the wrong orientation would surely fry the chip!  Make sure you know where pin 1 is!  Also, there is always the risk of ESD or physically damaging the motherboard socket.  Chip transplants should always be handled with great care.

Personally, I haven't tried an 8375 on an A500.  I did update my 8370 Rev5 A500 to an 8372, which is a normal procedure.  I see no reason it wouldn't work with the 8375, though it wouldn't have the additional chip RAM.

[Ilwrath]

Usually I don't go back and revive posts, but in this case, I feel I should.

You may be correct, but several posts on Usenet refer to it having a different pinout at at least one refers to a short. Without more information I wouldnt risk it.

I had never heard of an Agnus with an incompatible pinout.  But, upon this new information, I also agree, I would be much more hesitant to try a possibly incompatible version, as well!!  So kids....  BE CAREFUL!

Not true. It was the case for the 8372 but for the 8375 they went back to NTSC and PAL.

Really??  I wonder why the heck they did that...  I ASSUMED the 8375 would be a unified part, if the 8372 is.  MOST companies didn't go around removing cost-saving features like that.  :lol:

The Agnus is the chip with the most revisions and the least information

Agreed.

... and I tried earlier this year to consolidate the information and dispell a lot of the RUBBISH information about the chips which is re-used over and over.

Wow... I had missed that post.  I must have been on hiatus.  Anyhow, that's a great job.  I'll see if I have anything that might help shed some light, as well.