My Helios64 was running fine with 5 HDDs for a couple of weeks, then I suddenly couldn't access the shares anymore and I noticed only two HDDs were running (the rest having no indicator lights).
HDD slot 3, 4 and 5 appears "dead", no power up on boot, no indicator lights. I have checked both +12V and +5V rails and they are present, everything is plugged in. I can move the HDDs from slot 3, 4 and 5 to slot 1 and 2 and they will power up just fine. The hard drives also work in other machines.
I'm a bit lost as to what might be wrong, any ideas?