Nothing like cleaning out the (electrostatic) dust bunnies
to make a computer run oh-so-much-better!
Congrats Jarod.... glad you cleaned that mess @home! ;-)
Jarod Wilson wrote:
On Thursday 13 March 2008 05:44:30 pm Jarod Wilson wrote:
On Thursday 13 March 2008 10:46:49 am Jarod Wilson wrote:
On Thursday 13 March 2008 12:23:18 am Dan Williams wrote:
On Thu, 2008-03-13 at 00:01 -0400, Jarod Wilson wrote:
[OS X lockups and sha1sum failures under linux on ppc mac]
So anyone have suggestions for diagnosing exactly what component is
starting to fail? My first thought was cpu, then motherboard, and now
memory... I figure memory is probably the easiest place to start
poking, but is there a memtest86 equivalent for PowerPC? If not, I
guess its memory stick roulette, and on to other hardware from there.
Open to any and all suggestions...
RAM is definitely the first place to look. You also might just want to
take the RAM out and firmly reseat it. That's fixed these sorts of
things for me a few times before.
[...]
Just found http://pyropus.ca/software/memtester/ and will see if that
builds/runs/does something useful under ppc32 linux or os x... There's
also a non-free (but fairly cheap at $1.39) memtest os x at
http://memtestosx.org/.
Never mind. Memory stick roulette suggests either all the sticks are bad,
or something else is failing. Backed off to running my sha1sum test with
only 1 stick at a time, and could reproduce the sha1sum failures on each of
them. Failures seem to happen more frequently after a number of iterations,
like after the system heats up a bit. On with the show...
So I finally yanked the mammoth heatsink and processor module, and noticed
that what I presume was once thermal paste between the cpus and the heat sink
looks a lot more like a thin layer of dirt than thermal paste. I cleaned off
both the cpus and heatsink, laid down some new thermal paste, buttoned
everything back up, and now 1000 consecutive sha1sums all return the same
result. Woo! Back in business...
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