I use one of these R-IDSC adapters in my CSPPC A4000 too, with an 80GB IDE HD.
I don´t have any experience with AOS4.1, but have AOS4.0 installed in my A4000.
Before i bought this adapter, i used to have a real SCSI HD in this machine and AOS4.0 worked beautifully. But with this adapter i can´t write anything to the disc using AOS4.0. The system reports "function not supported", or something like this.
In Morphos and in OS3.9 the adapter work flawlessly. But not in OS4.0.
I thought that the adapter was cheap and used some instruction not supported by AOS4.0, but maybe it´s not the case as some people recognize the driver in OS4 being picky.
I´ve tried various combinations too, and in the end decided to stop using AOS4 as i refuse to use the internal IDE interface having a much faster SCSI interface in the CyberStorm.
Anyway, if there´s any solution for this, or if you have success with your experiments, please let me know!
