[Edit: I didn't see your postings above until after I posted my response. I don't know anything about adding TWO devices in the single Ultrabay slot of the Dock III, so my comments below may not help solve that issue. They may help the other poster who had difficulty just getting a single IDE device set up properly though]
I've got a Dock III with a 600X and a second Dock III with a 770E. Both of them have IDE devices in the standard device bay on the right side of the Dock. And at various times I've also had a CD-drive and a second hard drive installed in the UltraBay slot on the left side, though now I pretty much use the UltraBay slot only for a floppy drive. I use Windoze 98SE on both machines, but all these various configurations should be possible with your 600X under Windoze 2000 I think.
- Make sure that you've got IDE devices in the dock enabled in your ThinkPad Configuration utililty (don't know if it is identical in 2000)
- If you play around with the IDE channels, you may end up with various incompatible setups. I have the 3rd IDE channel enabled in both my DockIII/ThinkPad configurations. I think the 2nd IDE channel is normally enabled by default as connected to the UltraSlimBay of the 600 or 770 itself. This is configured slightly differently in Windows 95/98/ME than in Windows 2000/XP I think (or at least, the devices show up differently in Device Manager I think), but in all cases it is also tied in to whether or not you have "hot/warm swapping" enabled on the UltraSlimBay of your ThinkPad. The UltraBay in the Dock itself is NEVER hot/warm swappable in any OS.
- Additional hard drives in particular are a bit awkward to enable in the exact right way I think, because each hard drive seems to demand its own IDE channel. If you want a second hard drive in the Dock to use the 2nd IDE channel, I think you have to disable hot/warm swapping. I have found it easiest to attach any hard drive in the Dock to the 3rd channel and to leave hot/warm swapping enabled, even if you aren't going to need it.
- You may run into problems with IRQs and PCI Steering when trying to enable multiple hard drives in your Dock III/ThinkPad config. In a default configuration, IRQ 11 is usually reserved for "PCI Steering", but when you want 3 IDE channels, you need IRQ 11 specifcally for one of the channels. You should be able to fix this through the ThinkPad Configuration program by assigning IRQ 9 or 10 or some other empty IRQ as your 1st IRQ reserved for PCI Steering and thereby release IRQ 11 to the system. For three hard drives, I think you need IRQs 11, 14, and 15 all devoted to various kinds of IDE Channels/IDE Bus Mastering Devices. For more info on this stuff, consult IBM Document MIGR-4LXPPU:
SelectaDock drive controller IRQ assignments - ThinkPad 600, 770.
- I think you can also run into problems if you try to have a hard drive in both the Dock's IDE device bay and in the Dock's UltraBay at the same time. i.e. be careful about installing
two hard drives in the Dock. You
can have a second hard drive in the ThinkPad UltraSlimBay along with a hard drive in the IDE device bay of the Dock. However, I have found that in such a setup you should not enable DMA on any of your hard drives, as data transfer back and forth between the three drives can become unreliable. Indeed, I decided to disable DMA on all my hard drives on these systems, including especially ones in my Dock III. I have a variety of other devices which might have been causing this problem, though, including additional PCI graphic cards so the problem may not be general.
- Also (and this perhaps should justifiably lead you to treat my information above with some scepticism) when I was installing IDE devices in my Docks, I actually had problems figuring out which direction the Power cable was supposed to be plugged in (!). The IDE cable I figured out okay, but the little white cable with the four wires or whatever I plugged in upside down on more than one occasion. In those cases, I think the drives actually appeared to power up okay, but were not recognized properly. And when I flipped the little plug around and plugged it in the other way: the problem went away. Probably not a problem for most people, but something to double-check if you are not 100% sure.
- Lastly, you can check for some further details in the
ThinkPad SelectaDock III User's Guide and User's Guide Supplement
Phil.