First off let me apologize to Western Digital for casting doubt; the WD600AB HDD that I ScanDisk'd ( Better ScanDisk?
) is fine; ScanDisk eventually reported zero errors.
However, the problem has not gone away. I've now discovered that Windows Me Device Manager reports that the Secondary IDE controller (dual fifo) is either not present, not working properly, or does not have all the drivers installed. (Code 10.) When I try to Update Driver, it told me I had the best driver already insalled.
So, I downloaded the latest 4in1 (v431) from Via, and installed it. The only effect that had was to turn off DMA for the drives on the primary controller.
Neither of the drives on the Secondary IDE controller currently appears in the Device Manager Disk Drives list. However, both appear in Windows Explorer listings.
One more puzzling feature is that when I reboot via Windows, or via Ctl-Alt-Delete, or via front panel Reset switch, BIOS doesn't find drives on the secondary IDE controller. When I power off momentarily, the drives are found by BIOS. I've tried letting BIOS auto-detect, and I've tried User-defining the BIOS drive types.
I'm using drive trays. I will try to remove them. I can try booting without any drives on the secondary channel, then putting the drives back one at a time. I can try stripping out all other I/O cards from the PCI bus. But I haven't seen this type of problem before. Could the IDE controller really have failed suddenly?
I am confounded. Any advice is appreciated.
[This message has been edited by yogaman (edited 06-09-2001).]