Super Agnus 8375

[alexh]

The short answer is no.

There are different versions of 8375 Agnus for different Amiga revisions and there are different versions for PAL or NTSC.

Not all Agnus chips are electically compatible. Plugging the wrong Agnus in the wrong Amiga will almost certainly destroy your motherboard.

Also if you have any illusions of plugging an 8375 into any Amiga 500 and getting 2-Mbyte Chip RAM you should forget them now.

Putting one in an A500 before the A500+ (assuming it works and doesnt destroy your Amiga) it does not give 2-Mbyte Chip RAM. The most it can give is 1Mbyte and then in some cases only with a motherboard modification. To get 2Mbyte Chip RAM you will need additional hardware.

Tell me:

Exactly which version 8375 you have AND
Exactly which version Agnus you intend to replace AND
Exactly which version Amiga it is for.

and perhaps I can advise.

[alexh]

Yes, my mistake. I was thinking A1200

@Sebastian
If you have a PAL 8375 for A500 (318069-10) I would be interested.

[alexh]

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

From the limited information out there I would agree with you.

From the 8372 and beyond, the Agnus chips are not specialized for NTSC or PAL, but adapt to whichever machine they are placed in.

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

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

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.

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

http://www.amiga.org/forums/showthread.php?t=20895

The full information is FAR from complete but much better than on Amiga-Hardware or anywhere else for that matter.