A few years ago, I was preparing to upgrade my Xbox's ram by flashing IND Bios 5003 which supports both the ram and virtual cdrom patcher by xman. After a successful flash, I rebooted and was presented with an Xbox that would turn on with fan spin and shut down immediately. I assumed it was a bad flash and could do nothing about it at the time, so I set it aside. Coming back to it now with better tools, I removed the HYUNDAI tsop from the board and onto a breakout so I could flash it with a TL866II Plus programmer. It's software said that around half the pins were not connected correctly. Confident in my soldering, I ordered a new chip, programmed it (IND 5003 x 4), and installed it into my Xbox. Now it the Xbox reboots three times and frags. I then pulled the chip off, verified it again in the programmer, and reinstalled. It still frags. Pulling D0 low and booting from LPC does work fine. I also did do the ram upgrade finally (using like chips from china as the sammy chips pulled from 1.6 Xbox just fragged). My best guess is that the failed chip damaged the [southbridge?], but was hoping someone here might have hints as to what I might try to get it working again.