With Agnus 390544-01(PAL), oscillator 28.375 and US power supply, TSOP programmed and enabled everything working as expected but ScanDoubler only have 50Hz refresh and I need 60Hz. If I install Agnus 318069-11(NTSC), oscillator 28.636 and same power supply, TSOP programmed and enabled, board hangs on a start of animation (showing only star background). When TSOP is disabled with same config as above, motherboards starts OK, I can sync ScanDoubler (60Hz), but FastRAM is in 24-bit range and I think that make my MiniThylacine 4port unusable ( Am I thinking correctly about memory addressing conflict?) I did wipe out TSOP and disable it. After that board starting with ChipRAM only, so I used AddMem for it, but as manual described, I’ve got huge drop in IDE transfer (from ~2.8 to ~1.0, you can see everything is slower). I didn’t test USB with that config, but that is next ting to test.