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Author Topic: How Cyberstorm Mk-II 040 and Warp Engine 4040 Boards Address RAM on Amiga 4000  (Read 2803 times)

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Offline F_P_G_ATopic starter

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How Cyberstorm Mk-II 040 and Warp Engine 4040 Boards Address RAM on Amiga 4000
« on: September 13, 2020, 07:45:59 PM »
Are there any advantages or disadvantages of having RAM on the A4000 mainboard or CyberStorm MK-II 040/Warp engine 4040 CPU boards?

Why Cstorm/Warp engine put the RAM on CPU board while there are RAM slots on mainboard?



Also where is the best place to discuss low-level hardware design aspects of Amiga 3000 and A4000?
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Offline F_P_G_ATopic starter

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Re: How Cyberstorm Mk-II 040 and Warp Engine 4040 Boards Address RAM on Amiga 4000
« Reply #1 on: September 13, 2020, 08:44:22 PM »
If one of these Turbo cards with on-board RAM installed on Amiga 4000 or 3000;  should the mainboard installed RAM to be removed?
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Offline F_P_G_ATopic starter

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Re: How Cyberstorm Mk-II 040 and Warp Engine 4040 Boards Address RAM on Amiga 4000
« Reply #2 on: September 13, 2020, 09:52:49 PM »
How Amiga checks the presence of RAM?
For Turbo-Cards, add-on cards there is auto-config mechanism.

But for RAM? Does Amiga utilize ID ROMs on SIMMs?
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Offline F_P_G_ATopic starter

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Re: How Cyberstorm Mk-II 040 and Warp Engine 4040 Boards Address RAM on Amiga 4000
« Reply #3 on: September 13, 2020, 11:10:29 PM »
Tribblesmasher, first of all thanks a lot for answering my question..


About my last question; let's say we installed 1 SIMM or 2 SIMMS on A4000 mainboard.
How does it detect the presence and capacitiy of RAM slots on mainboard?

If we would have added RAM directly on CPU bus (like Warp Engine 4040)  is autoconfig mechanism used?
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