No, they are side-by-side, with some origami-style cable folding going on over the top of the drives :)Although I don't anticipate
your product will have any problems with doing it that way, I have a cautionary tale to tell regarding the origami thing...
I work for a small division of a larger company. We develop software that is distributed to more than 1000 company branches worldwide. A few years ago, there was a big rollout that involved both new software and new machines. The new machines were Dell Pentium 90's and 100's (the Optiplex XL-590 and XL-5100 models to be exact).
These were "pizza-box" desktop cases, with two over/under drive bays on the front. When we placed the order with Dell, we specified that the CD-ROM must occupy the top bay rather than the bottom one. This was necessary: The way the computers were placed in the branches, the keyboards were directly in front of the cases, so if you put the CD-ROM on the bottom, you'd be unable to open the CD tray because the keyboard was in the way. It was OK to put the floppy drive in the bottom bay because it was never used. Our software ran from the CD-ROM, so we needed that bay to be accesible.
Well, when the Dell folks assembled the systems, they chose to run the IDE CD-ROM cables up over the top of the drives and do some origami-style folding. This was not necessary-- careful cable routing could have allowed the cables to run behind the drives comfortably-- but it was easier for the assembly techs to do the over-the-top origami thing.
What they didn't take into account was this: When the system was closed up, the origami part of the cable is sandwiched tightly between the drive mounting frame and the top shell of the pizza-box case. And in the branches, they set the monitors directly atop the pizza-box cases.
So, when we got all sorts of odd reports of errors in our software that we couldn't reproduce, we pulled our hair out trying to locate our bugs. Almost all of the errors
sounded like software errors, such as "Out of memory". We couldn't find anything wrong with the software, though.
I had one of the branches send us a system that was reporting trouble, and when we got it, the system worked fine. Of course, I hadn't set the monitor on top of the case yet. It sat there for at least a week before I had to rearrange my desk and the monitor ended up atop the case. Magically, all the errors started appearing on the system.
I looked inside and discovered that the weight of the monitor crushed the origami-folded cable between the shell and the drive mounting frame. There was visible damage to the cable in some spots. All I had to do to solve the problem was to unfold the cable and route it more carefully so that it wouldn't get squished. The machine ran fine after that and we sent it back to the branch.
The real difficulty was convincing the corporate assets department that their beloved supplier had screwed up royally, and that our software wasn't at fault. I spent about a man-month dealing with the problem, and it was never solved 100 percent. Reports of this very problem in the branches continue to trickle in to this day...
Tony FabrisEmpeg #144