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demolition · 15 February 2017, 22:06

I think ECS Agnus is pin compatible with the OCS ones, so simply replacing it should work. What you can't do it replace a 512k/1M Agnus with a 2M version, but he's not asking for that. With the right Agnus, the ACA500plus should be able to remap the 512k in the trapdoor into chip, no matter what kind of mem expansion is in there.

Also, getting a Vampire won't help with the issue of missing chip mem. Even if he added a Vampire (which is probably way overkill for most people), he would still be left with 512k chip since the Vampire won't (and can't) provide any additional chip mem.

15 February 2017, 22:06	#290
demolition Unregistered User Join Date: Sep 2012 Location: Copenhagen / DK Age: 43 Posts: 4,190	I think ECS Agnus is pin compatible with the OCS ones, so simply replacing it should work. What you can't do it replace a 512k/1M Agnus with a 2M version, but he's not asking for that. With the right Agnus, the ACA500plus should be able to remap the 512k in the trapdoor into chip, no matter what kind of mem expansion is in there. Also, getting a Vampire won't help with the issue of missing chip mem. Even if he added a Vampire (which is probably way overkill for most people), he would still be left with 512k chip since the Vampire won't (and can't) provide any additional chip mem.