On Sat, 30 Oct 2004 17:53:21 +0200, Ken wrote:

Just thought of something else
You ARE using 80 wire ide cables arent you?

Yes. I even tried the working cable from my disk
that are in UDMA 5 mode now.
I'm going to interchange the disks and try every combinations.

Now it's done. All 3 disk and both cables can do UDMA 5.
The problem is in the software or the primary IDE port.
I don't know where to search.