Our Amiga 1200 is very, very flaky. No wonder, it's your typical modern PCB sandwich, PCI slots, graphic card, CPU card, USB card. It will hang, refuse to boot or work entire day on random. So we took it out of the case (Infinitiv tower, that I affectionately call "A fucking pice of shit plastic") and tried to pin point a configuration or an issue (heat, bad solder, power supply issues).
Finally we stood it on it's edge, I even "wired" it to the water pipe with an USB-IDE interface I had handy to provide extra stability.
It was so stupid Piotrek made a promo video out of it.