Looking for PAL Agnus 8375

paulo_becas · 30 January 2012, 16:05

Looking to buy a PAL Agnus 8375, anyone?

alexh · 30 January 2012, 16:21

Unfortunately I don't have one.

But to avoid hurt, you really should specify the exact part you want (or the exact NTSC part assuming you want to replace an NTSC one on a Super Agnus upgrade) in order to get one which is pin compatible. There were many different 1Mbyte and 2Mbyte 8375 chips with different pinouts.

paulo_becas · 30 January 2012, 16:27

I can read in mine the following:

318069-11
8375
4592 20VBB

alexh · 30 January 2012, 16:32

Quote:

318069-11 (NTSC 2Mbytes)
8375 (Super Fat Agnus)
4592 (Manufactured week 45, 1992)

Ok so you require a 318069-10 8375. These were used in A600's.

paulo_becas · 30 January 2012, 16:37

Thank's for the info.
It's said that i can use the agnus chip that comes with the 600, is that true?

alexh · 30 January 2012, 16:45

Yes. Most PAL A600's will have 318069-10 8375. But it will be surface mounted (soldered to the motherboard) and you'll need access to a hot-air gun to get it off.

Very early A600 PCB's have a 390544-01 8375. There is no data as to whether these two parts are pin compatible. I would look out for a 318069-10 to be sure.

cpiac64 · 30 January 2012, 22:42

i have 2 a600 dead, remove one fat agnus and test on a500, if are good i cand send you one chip, 10€ plus 3€ for p&p and paypal fee

alexh · 31 January 2012, 00:41

AFAIR, the A500 cannot use a 2Mbyte A600 Agnus without a MultiMega / MegaChip etc.

paulo_becas · 31 January 2012, 10:24

Quote:

Originally Posted by cpiac64

i have 2 a600 dead, remove one fat agnus and test on a500, if are good i cand send you one chip, 10€ plus 3€ for p&p and paypal fee

I'm more than interested, send me a PM with the details.

Quote:

Originally Posted by alexh

AFAIR, the A500 cannot use a 2Mbyte A600 Agnus without a MultiMega / MegaChip etc.

This one is for a megachip

alexh · 31 January 2012, 10:57

Quote:

Originally Posted by paulo_becas

This one is for a megachip

I know

cpiac64 said he would test the A600 one in an A500 before sending which he can't do.

cpiac64 · 31 January 2012, 11:19

Quote:

Originally Posted by alexh

AFAIR, the A500 cannot use a 2Mbyte A600 Agnus without a MultiMega / MegaChip etc.

i use for test a500 rev 8.a1 with 1 mega chipram, i removed original fat agnus and installed on megachip for my cdtv (recently sold) and the agnus ntsc from megachip is mounted on this a500 rev8.a1

now i have removed a fatagnus from a600 and insert in this a500 and test the chipram (1mega) with aibb4 and i suppose the chip are ok at 99%

i can test on another a600 with 2mega chipram, but i don't have a socket

p.s.
i can test on a500 an 390544-01 for compatibilty

30 January 2012, 16:05	#1
paulo_becas Registered User Join Date: Feb 2010 Location: Porto, Portugal Posts: 464	Looking for PAL Agnus 8375 Looking to buy a PAL Agnus 8375, anyone? Last edited by paulo_becas; 30 January 2012 at 16:27.

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30 January 2012, 16:21	#2
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,335	Unfortunately I don't have one. But to avoid hurt, you really should specify the exact part you want (or the exact NTSC part assuming you want to replace an NTSC one on a Super Agnus upgrade) in order to get one which is pin compatible. There were many different 1Mbyte and 2Mbyte 8375 chips with different pinouts.

30 January 2012, 16:27	#3
paulo_becas Registered User Join Date: Feb 2010 Location: Porto, Portugal Posts: 464	I can read in mine the following: 318069-11 8375 4592 20VBB

30 January 2012, 16:37	#5
paulo_becas Registered User Join Date: Feb 2010 Location: Porto, Portugal Posts: 464	Thank's for the info. It's said that i can use the agnus chip that comes with the 600, is that true?

30 January 2012, 16:45	#6
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,335	Yes. Most PAL A600's will have 318069-10 8375. But it will be surface mounted (soldered to the motherboard) and you'll need access to a hot-air gun to get it off. Very early A600 PCB's have a 390544-01 8375. There is no data as to whether these two parts are pin compatible. I would look out for a 318069-10 to be sure.

30 January 2012, 22:42	#7
cpiac64 Registered User Join Date: Apr 2010 Location: Italy Posts: 1,136	i have 2 a600 dead, remove one fat agnus and test on a500, if are good i cand send you one chip, 10€ plus 3€ for p&p and paypal fee

31 January 2012, 00:41	#8
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,335	AFAIR, the A500 cannot use a 2Mbyte A600 Agnus without a MultiMega / MegaChip etc.

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