Xbox FRAG after attempting to upgrade to 128MB

[satdude]

Hello, I have a 1.4 Xbox I tried to upgrade with ram chips from a FRAGing 1.6. I put only one RAM chip on as a test and it didn't boot into XBlast OS. So I thought the RAM chip was bad, I removed it, checked for shorts and with the console back in stock configuration it still FRAGs on boot. What could be the issue?

[jjjwelch]

I would triple check and make sure there isn't a solder bridge somewhere, or if you accidentally moved a smd component