CPU: 80-85C

  • Thread starter Thread starter Jody
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J

Jody

Hey, just opened a customer's box..Looks like one of the retention clips for
a p4p800s s478 heatsink broke off.
The 3.0ghz CPU apparently has been running at 80C for a while now as the one
corner was up high.
I'm getting a replacement bracket from a distributor, but i was wondering
how much faith would you guys have in this cpu at this point? :)

(He brought it in due to it's apparent slowing down, most likely viri and
spyware :) )

Thanks,
jody
 
"Jody" said:
Hey, just opened a customer's box..Looks like one of the retention clips for
a p4p800s s478 heatsink broke off.
The 3.0ghz CPU apparently has been running at 80C for a while now as the one
corner was up high.
I'm getting a replacement bracket from a distributor, but i was wondering
how much faith would you guys have in this cpu at this point? :)

(He brought it in due to it's apparent slowing down, most likely viri and
spyware :) )

Thanks,
jody
Click to expand...

Maybe the thermal throttle has been protecting the CPU ?
That slows down the processor when it gets hot.

When the CPU gets to 135C, the second feature cuts in,
and the motherboard should shut off.

If the processor will pass Prime95 torture test (mersenne.org)
after you fix the cooling, I'd keep the processor and
continue to use it. A good four hour run error free should
prove it is OK.

Paul
 
"chris" said:
135degC? I would think that the CPU would be toast long before it gets to
that temp.
Click to expand...

Actually, I went back and checked a couple of datasheets. A P4
2GHz processor has THERMTRIP set at 135C. A Prescott in LGA775
package is set to "approximately 20°C above the maximum Tc",
which would be on the order of 90C. I would think the trigger
point would be set according to the ability of the package
materials to take the combination of temperature (and heatsink
contact pressure). I couldn't find any docs in plain English, to
explain how the temperature setting was chosen.

135C sounds like a good temperature for a silicon die limited
performance, while 90C is what you would use if the package
is going to degrade before the silicon die does.

Paul
 
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