jim w wrote:
> My MSI 7211 system is running 186 Deg F.
> 3.2 G intel 8oo buss
> Was running 116 deg F with a 2.8 D Celeron
> at 533 buss.
> Any sugestions on geting the temp. down some?
> Tnx
> Jim
Have you verified the Vcore value being used ?
Power is proportional to F*C*V**2. As you raise
F, the heat goes up. Voltage is a squared factor,
so increasing Vcore voltage really makes it hot.
Check in the BIOS, that you aren't manually setting
the Vcore yourself. Let the BIOS try to auto set it
first, and see what happens.
The processor should have invoked throttling at
some point, in an attempt to control the
temperature. So if you tried to benchmark it, you
might not see the full performance.
For example, I have a 3.2Ghz Northwood (512KB cache),
and if I run SuperPI to 1 million digits, I get from
44 seconds to 48 seconds. The 48 seconds, is now that
I'm running anti-virus software.
http://www.xtremesystems.com/pi/super_pi_mod-1.5.zip
When you installed the heatsink, was there some
thermal interface material on it, either a thermal
pad, thermal paste, or something similar ?
Have you checked that the heatsink is sitting flat ?
What I do, is clean the heatsink and CPU. Place a half
rice grain of thermal paste in the center of the CPU.
Fit the heatsink and fasten the clamps, levers or screws,
whatever the thing uses. Then, undo the clamps, take
the heatsink off, and have a look. The thermal paste should
squish in a circular pattern, and reach almost to the edges
of the processor top. Doing this test, tells you two things.
It indicates whether the heatsink sits flat. It also tells
you how much paste you need, to cover the processor. You want
enough paste, that just a tiny bit squirts from the edges of
where the heatsink meets the processor. Not so much should
squirt out, that it makes a mess. But you do want the edge
to be "wetted" with paste, as that proves there is enough
paste present to fill the air gap. And that is why you
use paste in the first place - the thermal paste is a better
conductor of heat, than the tiny air gap that would exist
otherwise, between the heatsink and CPU.
Another possibility, is the temperature measurement
is not accurate. If the processor was really 85C, and
the heatsink was making good contact with the CPU, the
heatsink would be perceptably hot to the touch. Prescotts
run hotter than Northwoods, and right now, my Northwood
runs at maybe 46C when Orthos is running. Maybe 43C
when I run Prime95. I never get remotely close to 85C.
Paul
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