Was working - now broken!
Oh man I can't believe I just found this thread. I've been struggling with this for months!
I got a Mac Pro 8 core in August or September 07 with the specific *hopeful* intention of using those two extra ports. Bought the esata extender cable from newertech.com, installed, used two Lacie D2 Quadra external drives with esata, made sure to not hot swap them (plugged in with power off, powered on) and I set the drives to "ON" instead of "auto" so they would not try to power save. *WORKED A TREAT!* for several months in fact, and I even had them raided as a striped array. Superfast, awesome. I was happy. Then, at some point I didn't use them for a few weeks as i was tied up with other work, and in that period I installed the firmware update in November I think it's 1.1, AND leopard. One of these two installations has now BROKEN those two sata ports in the mac. The other four drives bays (all used with 750Gb drives) work perfectly as usual, but the two extras are broken.
At first I thought it was the Lacie drives after suggestion from somebody about chipset incompatibility, but that didn't seem right to me, I tried another drive finally today, a seagate 500Gb external esata, and it also does not work.
Here is what happens:
cold boot with lacie drives (either one or both), system boots, behaves strangely in other words icons take a long time to appear on desktop, and the drive is visible on the desktop, even shows the correct size, name, and available space on the desktop icon, but if you double click it, the window opens but no files show up, then I get the beachball, then the grey curtain comes down, and I need to restart. With the seagate drive, repeatedly, it will just give a grey screen on start up, with no activity. It will not let me even boot into the tiger start up CD if the seagate is plugged in, so that indicates me to this is either a) a hardware defect or b) a firmware issue.
Man I hope I can get some help here, i've tried everywhere and on and off when I had time, been searching all over the place I really need those two extra ports, or, failing that a pci card to provide the equivalent...
HELP!
Thanks,