flatness, Part 2
then I took a look at the heat die, not too enthused so I re-lapped it
but found after a bunch of testing that there was no discernable difference
on to the BIG question: what does the top of a CPU look like ?
but I had none to ck, called JoeC and he sent me a dead Duron and a P3
but both had non-reflective surfaces, time to lap which I did using ONLY 1µ film (the idea being to polish, not flatten)
- a big chore; the green 'coating' on the Duron seems to be a silicon oxide somehow processed to yield that finish (anyone know ? - not think, eh - know ?)
- and the P3 was just as difficult, looks like gun bluing - but MUCH harder
the Duron
pretty flat really
and the real shocker, the P3
it has a point on it like a church steeple (which I do not believe is any accident)
what can be said about all this ?
nothing, a sample size of one, on different CPUs from different mfgrs is not a basis for anything other than idle speculation
but if I had more CPUs to look at . . . . .
AN OPEN REQUEST TO OCers: I need your dead, un-lapped of course, CPUs - those sold w/o heatspreaders
I'd like to do an article on this subject -> but I need to see something more that a couple to have any validity at all
corner cracks ok, I can inspect
my address is
HERE
please contribute
and the ‘contest’ ?
well, I was thinking that if I received more dead CPUs from procooling than OC – perhaps I should breakdown and write an article for JoeK ??