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Author Topic: Installing a 8375 Angus into a A500 Rev6a  (Read 3690 times)

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Offline trip6Topic starter

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Installing a 8375 Angus into a A500 Rev6a
« on: January 12, 2008, 06:04:17 PM »
If I am installing a 8375 Angus into a A500 Rev6a mainboard, is it a direct swap or do I have to solder\jumper anything? Any help is greatly appreciated Thanks.
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Offline meega

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Re: Installing a 8375 Angus into a A500 Rev6a
« Reply #1 on: January 12, 2008, 06:07:27 PM »
One of these?

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:)
 

Offline Zac67

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Re: Installing a 8375 Angus into a A500 Rev6a
« Reply #2 on: January 12, 2008, 06:31:48 PM »
Should work right away. If it forces you to NTSC and you prefer PAL, you'll have to isolate pin 41 (remove/bend socket contact, break off Agnus pin or stick some plastic strip in between).

I assume you had 1 MB chip before, otherwise there are two jumpers to change.
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Offline fiat1100d

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Re: Installing a 8375 Angus into a A500 Rev6a
« Reply #3 on: January 12, 2008, 06:54:38 PM »
IIRC there are several 8375 pinouts depending on the amount of memory the chip can address, e.g. the 8375-10 that addresses 2 MB of memory and works on the A500+ hasn't the same pinout as the 8372A originally used on the A500.
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Offline rkauer

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Re: Installing a 8375 Angus into a A500 Rev6a
« Reply #4 on: January 12, 2008, 07:11:16 PM »
Quote

meega wrote:
One of these?


 I doubt it will fit...

 :roflmao:  :roflmao:  :roflmao:  :roflmao:  :roflmao:  :roflmao:

 Sorry, I can't resist.
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Offline alexh

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Re: Installing a 8375 Angus into a A500 Rev6a
« Reply #5 on: January 12, 2008, 07:16:38 PM »
It has to be a specific type of 8375 Agnus to work in the Rev6a motherboard.

318069-16 for PAL
318069-17 for NTSC

They are 1Mbyte Agnus chips. If you to use any other 8375 Agnus for 2Mbyte chip you'll need an extra PCB, MegAchip or MiniMega etc.
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