Stability issues in overclocked systems aren't unusual. There's no realistic way to "factory test" an overclocked system.
Sounds to me like all they'd have to do to test these is to try partitioning a HD ;-) lol
Looks like Amigakit sells their systems with the OS installed, so did this work out of the
box when you first received it? If it has been running super hot for some time since
your purchase, you may have actually damaged the circuitry responsible for that SATA I/O
and/or the CPU itself.
And yeah.... not supplying a fan on any modern PPC CPU, especially an overclocked system,
goes against the grain of common sense. I'll have to keep all these things in mind when
it comes time to purchase my SAM setup.
OH - and the mobo battery shouldn't/wouldn't have anything to do with those symptoms.
Doubtful the battery is bad anyway. Those things can last for decades, especially when
the computer is used frequently.