I have been running this system for some years. After some hiccups with my Windows 2000 IDE system drive, I decided to run from an existing 2000 system already on the second IDE 2000 on the machine. However, although the BIOS reports them, the SATA drives (a mirrored set) are not seen by windows.
I tried rebuilding a replacement Windows 2000 system from scratch. I also went back to the original problem system drive. Neither of those helped
I have a spare, rarely-used system with the same motherboard, and have tried swapping all the drives into it. I have tried running with the XP system disc from the second system. I tested with a third SATA drive to replace the original two. The problem remains
For the record the motherboards are Optronix OP-K9A200G-MLF. It uses an ATI RS480 chipset. SATA functionality is via a Silicon Image controller. Each CPUi an AMD Athlon 64.