8375 Agnus chips

[Amiga4k]

I have 16 NEW 8375 2MB Agnus chips part # 318069-19, in original static flat pak. Data sheet lists A3000 NTSC and A3000T NTSC. Does anyone have a data reference or know if these work in any other machine?

[23703jim]

according to big book hardware, agnus 8375 318069-19 only for 3000. others have a different number

[alexh]

This is one of the failings of the wonderful Big Book of Amiga hardware. It's information about the revisions of custom chips is sketchy at best, plain wrong at worst. Unfortunately this information has proliferated across the internet.

The Agnus page is one of the worse.

Do the chips have 8375VBB written on them?

Could you provide a photo of one?

[alexh]

I would definately consider having a go at trying one in a A500+ if you have one spare.

[jkonstan]

I have an A3000 NTSC motherboard that could use an Agnus 8375 2MB chip. Would you want to sell one of those ICs ?

 :-)

[alexh]

Erm all A3000's have 2Mbyte Agnus's. Unless your mobo has had it removed you wont need one.

[alexh]

From looking at expansions, I am starting to think that all later Agnus's are pin compatible...

Looking on Amiga Hardware I can see several A500/A2000 MegaChip like Agnus expansions with "A3000" agnuses.

[Zac67]

I remember ordering a couple of ECS Agnuses (1 MB) from CBM and getting a load of 8375s - Commo told me they'd work in A500/A2k and they did. Obviously I don't remember the exact part no. any more, sorry...  ;-)

[Amiga4k]

I would be happy to email a pic to anyone interested. These are 2 MB chips. The chip has:
CSG
318069-19
  8375
2592 20VBB
 
   VBB

As I said, these are unopened, still in a static pak, that holds all 16 chip in a single row. I have been unable to price them, so please make a fair offer for 1 or all. Remember these are not used chips.
PS: packing up to move to FL, will hold off boxing them until 02-22-06.

[Tenacious]

There was a hack on Aminet years ago for converting later rev A500s and A2000s to 2MB of chip ram on the motherboard.  I think it was the 8375 and new ram chips req'd.  I did this to my original A500 and it worked great, still does.  It was cheaper than the Megachip, but required disabling the A501 memory, but not the clock.  It's been compatible with the A570, Supra's XP and GVP's sidecar (can't remember the name).  It's not for the faint-hearted.  This A500 is now in the kids room.  Unfortunately, the A570 does NOT take acceleration for very long, otherwise this could have been a hot system with a Supra 25 MHz accel.

[alexh]

Very interesting... the version number of those chips are -19 which would make you think they were the last ones made, however the date code shows that they were made in 1992 (2592). BUT I've got some photo's of -16 versions made in 1993!!

The Amiga-hardware database Agnus page is so WRONG! I've started a thread on EAB to try to get people to help gather the CORRECT information about them

http://eab.abime.net/showthread.php?t=21961

I might start it on Amiga.org too.

Photo's of one of these chips would help.

[jkonstan]

The A3000 motherboard that I have is missing the 8375 Agnus chip. I would like to buy a 8375 Agnus if the price was resonable.

:-)

[alexh]

It's missing the Agnus chip althogether? If not you dont need one!