wasn`t there one that connected all 4 hdds to a linux workstation and the raid was recognized?
i believe there was one in the past.
because personal data always is valuable (thats why you bought a raid5 device) i would connect all 4 hdds to a workstation with a late Linux on it.
if you do not have any linux workstation it is time that you somehow get yourself one where you can connect 4 additional hdds at the same time. i would try to do this with a normal workstation, connect all hdds to the 2 ide-ports and then boot to a good linux live cd.
both are live versions, so they are bootable directly from cd/dvd. thats the only way to test it without needing special hardware as a i know no workstation with more than 2 ide-cables (=4 hdds/dvd-drives).
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