Alright let me try and sum up my problem and what I've done in as few words as possible. I had a working Xenium ICE modchip installed in my version 1.0 xbox. Everything was going great, then one day I tried to turn the xbox on and it did the on, off, on, off, on FRAG, no display at all. I checked some connections and tried to figure out what was going wrong but couldn't fix it. My mod chip light still came on, but it just wouldn't boot. I figured my mod chip bit the dust.
I ordered a new Xecuter 2.6 CE, and I figured I'd be able to just stick it in and get going just like before. Wrong: I put the new chip in had the same problem, FRAG. The lights on the new chip came on, but it wouldn't boot. After messing with it for a little while I figured I must have a bad Xbox. The reason I didn't think this sooner was because when there is no chip in there, it works fine, it boots to the MS dashboard, plays dvds, games etc. But I figured in this case maybe there was a problem with the D0 hole or some strange hardware issue, so I figured I'd just get a new xbox.
I got the new xbox, also a version 1.0 (might be 1.1, date is 2002-09-04) and put my universal solderless adapter in, and I tried both my Xenium ICE, and Xecuter 2.6 mod chips, same problem, FRAG. At this point I figured I've replaced everything but the solderless adapter, so I figured I'd replace that as well. I got a new solderless adapter and still the same exact problem. Once again with no chip in there, the xbox boots normally, to the MS dashboard. Maybe there is something I'm missing that is a simple solution to my problem, but right now I'm very frustrated. I had a completely working modded xbox, and now I have a pile of scrap. Someone please help me, let me know if you need any more info. Thanks in advance!