I'm not sure if reseating the CPU heatsink will address this issue or not. 
Apparently it is a motherboard sensor that is reporting a temperature being 
too high, not the CPU.  On the other hand, it appears that the CPU threshold 
is so high that I could imagine a 70 deg. C. processor warming up the 
surrounding area, as well.

I'm not familiar with the Intel Monitor; does it give you any actual 
temperature readings or does it simply provide alarms for preset 
temperatures?  Have you already followed the suggestions in the web page you 
linked to (and quoted below)?

a.. If you are using Intel Active Monitor, you may increase the temperature 
threshold.  You can safely increase the Zone 1, Zone 2 or Motherboard Zone 
threshold up to 60 Degrees Celsius (140 Degrees Fahrenheit).
a.. If you are using Intel Desktop Utilities version 2.0.11.46 or earlier, 
upgrade the software to the latest version, which sets the zone default 
thresholds to 65°C.

If you don't have a way to currently check the temperatures from the windows 
desktop, I'd be curious at least to know what the temperatures are from 
within the BIOS.  I assume that this motherboard has somesort of  PC Health 
Monitoring section in the BIOS where you can at least see the CPU and 
motherboard temperatures.

You might also try disabling fan control in the BIOS, if it is enabled, to 
see if this helps.  I believe the fan on Intel heatsinks blows down; so, 
this is where some indirect air circulation is suppose to come from in the 
area that is overheating.  If the fan on the heatsink is running slowly, 
because the CPU tempereature isn't that high, the surrounding MB area may 
not get enough air circulation.

A third party program, such as speedfan, can give you temperature readings 
from the windows desktop, though you may have to spend some time through 
trial and error to figure out what exactly each temperature corresponds to 
(and some may actually be meaningless).  I'll use a program like Prime95 to 
stress the CPU and then observe which tempertures are going up while it is 
running.  Typically, there are two types of CPU temperatures read by 
speedfan.  One is the actual core temperature, which is sounds like what the 
Intel Monitor reacts to, and the other is a temperture outside of the core, 
which I take to be something closer to the temperature of the heatspreader 
on the top of the CPU.  While speedfan usually provides a MB temperature 
like the one you can usually find in the BIOS, I don't know if it will pick 
up all the MB sensors that Intel Monitor watches (that is, the zones around 
the CPU, the northbridge temperature, and the southbridge temperature).

John Sproule

----------Original Message Below---------------

Date:    Fri, 15 Feb 2008 11:30:22 -0500
From:    John Freibergs <[log in to unmask]>
Subject: Mobo Heat Problems

Hi,=20

I have an Intel D865GBF mobo with a Prescott 2.8 Pentium CPU with 1G of r=
am.  I'm having over heating problems in System Zone 2 on the Intel monit=
oring system  see the following url.  http://support.intel.com/support/mo=
therboards/desktop/sb/CS-012552.htm

Judging by the diagram it appears to be one corner of the CPU zone.  Righ=
t now I overheat just doing a virus scan and have real problems playing a=
ny sort of games which are so old they wouldn't need any sort of current =
graphics card(mine is an nVidia 256mb one).  Any suggestions on fixing th=
ings.  I've cleaned everything with compressed air and a vacuum.  The CPU=
 fan does work and I'm thinking of taking the heatsink off and reattachin=
g things.  But other than when I first built it, I've never had things ap=
art and I'm worried about doing damage.  If I remember correctly the heat=
sink and fan had an adhesive type thermal connection when I put it togeth=
er.  Will that come apart without effort or do I risk trashing the proces=
sor?  If things seperate OK what works for cleaning the residue off befor=
e I apply thermal paste and try reasembling.

Any help you guys could provide would really be appreciated.  I have a Co=
oler Master CM690 box with 3 fans and just oredered up 3 more.  But with =
both sides off right now I'm still having heat issues and it's frustratin=
g.

TIA
John

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