Subject: Why not to overclock
Let me say up front that I work for Intel, and that this is not an official
Intel statement, only my opinions. That out of the way, I help design
microprocessors, so maybe I can shed a little light on this subject.
Yes, with the currently available crop of chips, you can usually get away with
moderate overclocking. What you are trading off is reliability and chip life.
There are certain semiconductor failure modes that are speed sensitive. We
design chips with these in mind for a certain (rather long) lifetime.
Overclocking reduces this, but many people don't care as they will have traded
in their machines long ago. We care, because we honor the warranty on that
chip, no matter who has it now, so overclocked chips cost us extra money in
support.
Also, faster chips can be sold for higher prices, right? When we test
manufacturing batches, we sort them by maximum reliable speed. If a 333 MHz
chip was capable of running reliably at 350 or 400, don't you think we would be
selling it at that speed, with it's correspondingly higher price? Whatever you
may think of Intel, we aren't stupid. The speed-sensitive error causing that
lower speed rating may or may not be significant to your application, but how
do you know? We don't label the chip with the type of error, only the maximum
reliable speed.
Anyway, the newer chips coming out soon have more effective speed control
methods built into them, so overclocking will soon become a dead subject. Why
do we go to such great lengths to prevent hobbyists from experimenting with
their personal property? Ah, if that were all it was...
There are people who make their living by grinding off the speed labels on our
chips, and reselling them at higher prices. The unsuspecting buyer of a system
with one of these chips doesn't know this, they were only interested in maximum
speed at minimum price. Then when problems pop up, who has to pay for
replacing that chip? Not the overclocker, they are offshore somewhere; and not
the screwdriver shop that assembled the system with grey-market components,
they too are long gone. Who is still around to catch the blame? Intel. That's
why we care. It comes out of my paycheck in the form of a slightly smaller
year-end bonus, so I care, personally.
- Karl
Well, if that don't sound like a nail in a coffin, I don't know what to tell
you......bummer eh?
I wish Intel could come up with a way to simply tell if the CPU was ever OC'ed,
that would take care of the warranty issue. Makes you wonder if their
official, "We don't care what you do with the CPU in the privacy of your own
home", is for real or not...........
Thanks to Emilio Lam for the heads-up!