Welcome, Guest. Please login or register.

Author Topic: NTSC Fat Agnus Part Number?  (Read 2110 times)

Description:

0 Members and 1 Guest are viewing this topic.

Offline Oldsmobile_Mike

Re: NTSC Fat Agnus Part Number?
« on: December 31, 2014, 05:30:09 PM »
1MB of chip ram is minimum for WHDLoad.  I found a lot of stuff required 2MB, because the operating system consumes a portion of it then you need some left over for games.  1MB chip is easy to do on an A500 though, plug in an 8372A and then do the motherboard mod to convert the trapdoor memory to chip.  People worry too much about this PAL vs. NTSC stuff.  ;)  Here's another list of part #'s for you to peruse:

http://en.wikipedia.org/wiki/MOS_Technology_Agnus
Amiga 500: 2MB Chip|16MB Fast|30MHz 68030+68882|3.9|Indivision ECS|GVP A500HD+|Mechware card reader + 8GB CF|Cocolino|SCSI DVD-RAM
Amiga 2000: 2MB Chip|136MB Fast|50MHz 68060|3.9|Indivision ECS + GVP Spectrum|Mechware card reader + 8GB CF|AD516|X-Surf 100|RapidRoad|Cocolino|SCSI CD-RW
 Amiga videos and other misc. stuff at https://www.youtube.com/CompTechMike/videos
 

Offline Oldsmobile_Mike

Re: NTSC Fat Agnus Part Number?
« Reply #1 on: January 03, 2015, 06:17:50 PM »
Great!  In that case all you need to do is the motherboard mod.  Now people on here are gonna tell you there's lots of different ways of doing that, which is true.  Personally I like the method that changes the 512K in your trap door slot into chip ram.  Other folks will tell you to add sockets, or solder chips onto your motherboard, to fill up those blank spots you see now.  Whichever is easier I guess depends on your technical aptitude and amount of time you want to invest in this project.  ;)

If you do a google search there's plenty of threads already on this subject, also docs on Aminet.  Good luck! :)
Amiga 500: 2MB Chip|16MB Fast|30MHz 68030+68882|3.9|Indivision ECS|GVP A500HD+|Mechware card reader + 8GB CF|Cocolino|SCSI DVD-RAM
Amiga 2000: 2MB Chip|136MB Fast|50MHz 68060|3.9|Indivision ECS + GVP Spectrum|Mechware card reader + 8GB CF|AD516|X-Surf 100|RapidRoad|Cocolino|SCSI CD-RW
 Amiga videos and other misc. stuff at https://www.youtube.com/CompTechMike/videos