Advertisements Well, I'm stumped. I upgraded my Series 2 TiVo Toshiba RS-TX20 to a 1 TB drive and the only way I get it to boot up is by disconnecting the power from the DVD ROM drive. Upgraded drive: Western Digital Purple 1TB WD10PURZ. IDE to SATA card: HDE 2 Pack IDE/EIDE/PATA Computer to SATA Hard Drive Interface Adapter (from Amazon) With the DVD connected, I hear a very faint click click coming from the power supply and I don't hear the WD powering up. When I disconnect the power from the DVD ROM drive, the WD powers up, and the TiVo boots up without a problem. (There is a message on the main screen that says "Invalid or unsupported disc inserted" but that's referring to the powerless DVD ROM drive.) I can see all the programs that were transferred to the WD drive and the recording capacity now indicates 275 hours at best quality. I'm guessing: The power supply can't handle the Western Digital AND the DVD ROM simultaneously -- which would suck Something is amiss with the jumper settings. The DVD ROM is jumperd to Master and right now the WD has no jumpers. The WD has four jumper positions, but I can't find documentation that indicates Master or Slave, only things like "Native Gen 2 Enabled" and "SSC Enabled". Well, I guess it could be something else, but I'm here because someone might have a solution. Thanks in advance.