Whew!

From: Chuck McManis <cmcmanis_at_freegate.com>
Date: Wed May 5 19:35:53 1999

In classic fashion it appears the TK70 drive committed suicide in order to
save the circuit breaker the trouble of tripping. Sigh.

After letting the thermal overloads cool off and reset, I brought the
system up one board at a time (first CPU+MEM) then CPU+MEM+Ethernet, then
CPU+MEM+Ethernet+DISK, etc. Lastly I plugged power back to my disks and got
a complete boot.

The TK70 is toast, a component near the power connector is ash as far as I
can tell (and boy does it smell!) The drive mechanism appears to be intact
and is available to anyone for 1.2*cost of shipping. (nice formula that)

So the zillion dollar question is, why the heck did the TK70 smoke like that?

The interconnect between the controller and the board says "This Side DOWN"
and that was connected with the label against the PCB (which makes it lower
relative to the top of the drive)

Is the power connector not a 'standard' one? +5 +12 and GND little plastic
molex hood?

The other change was I used a skid from the disk drive. The metal plate on
the bottom touches the screws, but it did not appear to contact the PCB. I
could try one without the metal plate but I'm not going to experiment on my
only two remaining drives! I'm guessing there is some "other" type of plate
for these drives.

--Chuck
Received on Wed May 05 1999 - 19:35:53 BST