I'm not sure if this helps, but when I was setting up my multiple HDD setup, I was having a similar problem. When I booted from a W/D drive with no other drives on the cable, it booted fine. When I connected another W/D drive to the cable, with or without power I got an error 08. I know that it is a different problem than you are having, but I found as soon as I got rid of the W/D drives, everything worked fine.
QUOTE(theman0521 @ Mar 28 2005, 01:34 AM)
Glad to see you got it to boot, But I am afraied you may have mor problems bow. I have done severalof these, for me and friends. All of them seem to develop freezing or other problems on the inside drive. Unfortunately I have yet to find a solution to that yet. I believe it has to do with using the ata133 cables.
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So all I can say to those who cant get their dual hdd mods working. Try this It should work
That was a external hdd mod with both hdds attached. Now well whenever I get time to going to try to fit them inside the xbox case who knows when Ill have time.
I hope this info is helpful to those out there that are having problems.