English Amiga Board - View Single Post - TF536 on Amiga 500

pipper · 28 September 2021, 00:57

The TF536 is mapping its RAM into ZorroIII address space via auto config. This is only supported from KS 2.0 onwards.
So the RAM does not get added to the system. Additionally, the card slows down to 7Mhz whenever it needs to access any RAM that is not onboard fastmem. In your Situation, this means the TF536 will run at 7MHz all the time, because everything is loaded into chipmem (or slowmem for that matter).

Once you install a later kickstart, you should notice the effect immediately. Additionally you should then install MMULibs and in particular it’s ‚MuFastRom‘ Tool. Otherwise all kickstart routines will run out of the slow ROM.

28 September 2021, 00:57	#2
pipper Registered User Join Date: Jul 2017 Location: San Jose Posts: 667	TF536 on Amiga 500 - What should I expect? The TF536 is mapping its RAM into ZorroIII address space via auto config. This is only supported from KS 2.0 onwards. So the RAM does not get added to the system. Additionally, the card slows down to 7Mhz whenever it needs to access any RAM that is not onboard fastmem. In your Situation, this means the TF536 will run at 7MHz all the time, because everything is loaded into chipmem (or slowmem for that matter). Once you install a later kickstart, you should notice the effect immediately. Additionally you should then install MMULibs and in particular it’s ‚MuFastRom‘ Tool. Otherwise all kickstart routines will run out of the slow ROM. Last edited by pipper; 28 September 2021 at 01:17.