Mr. Man-wai Chang wrote:
On 5/24/2019 1:12 AM, Paul wrote:
Mr. Man-wai Chang wrote:
On 5/23/2019 7:52 AM, J. P. Gilliver (John) wrote:
Does Win 7 play tricks with BD PROCHOT in its automatic updates? I
don't remember hearing anyone complaining about that, until some
people reported Intel had security issues and needed microcode patch.

These whole Intel CPU buggy stories can be a conspiracy theory....

You're going to have to provide a URL reference to this thing.

PROCHOT has only one meaning. It has nothing to do with software *at
all*.


Yes, but that signal could cause Window$' power plan to throttle the CPU.

*** Unrelated to WIn 7:

I am having that problem in Win 10 after KB4494441, not sure whether it
could happen in Win 7. The CPU locked itself at 798 MHz on cold start.

Could be a BIOS setting issue, but I don't know which option.

Anyway... just a stupid complaint.


PROCHOT has nothing to do with setting CPU speed.

It's there to turn off the computer, if the CPU
gets too hot.

First, the CPU has a throttling state, which would
normally be enough to control the CPU temperature.

But, if the heatsink falls off the CPU or the fan blade is
jammed so there is no airflow, PROCHOT turns off the computer,
just like that. Like a light switch. Once the junction temperature
rises 20C higher than the throttling point, that's when PROCHOT
turns off the main ATX power rails.

You can disable all the C states in the BIOS and disable
EIST (Enhanced Intel SpeedStep). That's the equivalent of
using the "Performance" schema in the Power control panel.
The CPU will run at the top multiplier (and run at
its rated speed).

However, if there is still a problem with cooling, all that
making those adjustments in the BIOS will do, is hasten the time
until PROCHOT turns off the computer again. If there is a
cooling problem (fan fails to turn), or the computer is
kept in a closet with the door closed, it's going to
overheat.

Paul