I'm not clear, after reading your report (which was very thorough, thanks!), how this is an eMac/iMac issue.
It is an iMac/eMac (and possibly PowerMac) issue because the explosions ONLY occurred, and immediately occurred, when I plugged the devices into a firewire chain linked to an iMac or eMac. The email from Triumph Tech. suggests that those models have a higher power level (voltage, I assume, rather than Amp(erage) as stated by TT). Yes, it is not a defect on the part of the iMac or eMac, but IS a direct result of using those systems with the questionable enclosures.
To me, your experiences indicate that there is a flaw in the drive enclosure that makes it unable to handle the amount of voltage being supplied through Firewire on Mac desktop models with Firewire (battery-powered portable Macs seem to output less power, and so the faulty capacitor "held" when plugged into a Firewire portable Mac).
Agreed.
The eMac and both iMac computers continue to work properly with other brands of external firewire drives and equipment attached to them.
Which indicates that the problem is with Triumph Technologies, not anything from Apple.
I did not blame Apple, or Macintosh, or even Triumph or ComputerGeeks. I said "issue", not "problem", with these Macs. Since Apple was such an early adopter of IEEE1394, I am confident that they know what the proper voltages ought to be, and that their hardware is within the tolerances of the spec.
Please note: I have been carefully diplomatic in what I wrote to this list. I did not blame anyone. Although I wrote to Triumph Tech, and quoted part of an email from them to this list, I do not know that Triumph Tech is in fact the manufacturer of the ME-910U2F. I don't really know WHO the manufacturer is. I assumed Triumph to be the manufacturer several months ago, based on some verbiage elsewhere on the internet, and that was why I began correspondence with them in February (offering praise for what I believed to be a terrific product), at which time they did not deny being the manufacturer. In the Triumph Tech email to me last week, they explicitly said that they do NOT supply the device to Computer Geeks (but that they do also sell it)--they did not deny nor acknowledge being the manufacturer, either. Maybe they are a distributor, I don't know. However, I was glad to get at least the information from them that this is a known issue, involving defective capacitors that explode when used with iMac and eMac computers, and THAT is what I wanted to pass along here.
:-)
--Jim.
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