Yeah not working on mine either I have an Acekard 2, and I've tried everything! I tried replacing the header.bin and the arm7.bin, tried patching it, even tried switching with Japanese save, still nothing. Hope a fix comes out for this soon.
@Maximumbeans, Indeed. I've been working on getting this Infecutus chip to work on my PS2. But after soldering, I realised that a plastic piece was missing from the power ribbon cable to the power and eject buttons.