On 1/26/2023 12:57 PM, Chris Angelico wrote:
On Fri, 27 Jan 2023 at 04:31, Thomas Passin <li...@tompassin.net> wrote:
On 1/26/2023 11:41 AM, Chris Angelico wrote:
On Fri, 27 Jan 2023 at 03:34, Thomas Passin <li...@tompassin.net> wrote:
A nice theory but nothing to do with the real world. I've had a number
of laptops that overheat (or would, if I let test program continue)
running this test program.
Define "overheat". If all you're saying is "the fan began to whine and
I got annoyed so I shut off the program", that is absolutely NOT
overheating.
CPU core temperatures up to 95 deg C and rising rapidly, as reported by
a number of utilities including NZXT and CoreTemp. Max junction
temperature is given as 100 deg C, and I don't want to risk reducing the
lifetime of my CPU.
Maybe five or ten minutes at or above 100 deg C every few months might
not make a noticeable lifetime difference, who knows? I don't want to
make a habit of it. I wouldn't drive my car very long with a low oil
pressure warning active, either.
Did you get a warning, or did you just decide to stop the test?
(At least) one of the utilities, I forget which one, did show the
temperature in a danger zone.
Did you continue the test and see what would happen?
No, why would I? Would you go up to the edge of a cliff, past the
warning signs, and when the ground started to crumble take another step
to see if it would really collapse?
Did you, when the temperature got up to 95°, check what the CPU's
clock frequency was? The easiest way to recognize thermal throttling
is a reduction in frequency while at 100% utilization.
No, there was no point. Maybe it would have throttled, maybe no damage
would have occurred. But doing so would not have accomplished anything,
since I already had the throughput numbers I needed and the purpose of
the test was not to see how hard I could drive the system before
hardware failure. I'll leave that to Tom's Hardware or some gamers' site.
Or did you just assume that, with a mere five degree buffer and your
own personal analysis, that the CPU was just seconds away from total
destruction?
To quote myself from my last message:
"Maybe five or ten minutes at or above 100 deg C every few months might
not make a noticeable lifetime difference, who knows? I don't want to
make a habit of it. I wouldn't drive my car very long with a low oil
pressure warning active, either."
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