A few days ago, I received a Cube that was essentially given to me along with some purchased items. The previous owner gave me the impression that this Cube was no longer operational simply because he was including the core with the acrylic case. I decided I would disassemble the core to see if there were any salvageable parts. To my surprise, I found that it had a Panaflo case fan, a Powerlogix CPU upgrade (1.5 GHz), and a Superdrive. Seeing that the video card was a Geforce2 MX and realizing it wasn't Cube specific, I had a hunch that the card was bad and replaced it with a Rage 128 Pro. I reassembled the Cube, adding only a hard drive and RAM, plugged it in to power, and fired it up. Hey! It booted up, albeit to a flashing folder icon. So, I formatted the HDD and installed Tiger. It ran fine for about a day, after which I installed three 512MB sticks of RAM. After 15 minutes of use, the infamous Kernel Panic message displayed itself on the screen. Thinking the RAM was bad, I reinstalled the original RAM and rebooted. It worked fine for about another 30 minutes when it kernel panicked again. After a bit of troubleshooting, I think the optical drive and the 512MB sticks of RAM were responsible (kinda strange?). So now I have my second Cube, with upgrades, for one helluva price. Here is where I turn to you guys and gals for some advice. Firstly, would an optical drive cause a kernel panic? The one I removed appeared as a Matsushita (sp?) in System Profiler, but there is no Apple logo on the drive itself. Lastly, does anyone know if the Superdrives from a PowerBook or iMac are compatible with the Cube? I'm hoping one of you has a Cube that has been hacked and/or upgraded and can give some insight into compatible hardware and how to troubleshoot/prevent kernel panics.