Windows 7 64-bit
Intel i7 Processor 3.4GHz quad core
Radeon HD 7850 Graphics card
My minecraft uses 512MB of memory (RAM I think).
When you trigger TNT with a Trapped chest, the chest sometimes survives the TNT but it changes the direction. When it gets a block update it disappears though. The screenshot doesn't say much, so I recommend to check out the following video where I show you the bug:
For me it doesn't crash like in