Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

Pentium D 930 3.0 GHZ idle temperature

Posted on 2006-05-20
9
Medium Priority
?
13,130 Views
Last Modified: 2013-11-10
I just built a desktop computer with the following basic setup:

CoolerMaster Centurion 532 case
Antec Truepower 2.0 550 W PSU
Intel D945GNT MB
Intel Pentium D Dual Core 930 3.0 GHZ CPU
Arctic Cooling Freezer Pro 7 HS/Fan(b/c I read the stock isn't usually sufficient)
120 mm fan in the front and rear of the case

With all this in mind, here's my concern.  The idle temp of the processor is 55-57 C.  I first install the HS/Fan with the thermal paste that came on the Freezer Pro and got the 57-58 C readings.  I pulled them and wiped all of the paste off and cleaned with isopropyl alcohol thoroughly.  I squirted a small(rice-sized) amount of Arctic Silver 5 on the CPU and spread it with a credit card to leave a thin layer of AS5 on it.  I carefully put the HS/Fan back and seated it on the CPU giving it a 1-2 degree "twist" each way like the makers of AS5 suggest.  Well guess what?  Same thing.  55-57 C idle speeds.  I've read others are getting 35-50 C idle with this CPU.  I've also read some having the same heat issues I have.  Is this temp range OK, normal for idle?  

One more thing.  The Freezer Pros RPMs are ranging 600-800 RPMs which I thought were kind of low.  It has a 108 mm fan on it.  
0
Comment
Question by:Jman257
  • 5
  • 4
9 Comments
 
LVL 70

Expert Comment

by:Gary Case
ID: 16725841
First, you applied the Artic Silver incorrectly.   You should follow the directions on the Artic Silver site for this -- a "1/2 BB-sized" application in the CENTER of the CPU.  Do NOT spread it -- just slightly "wiggle" the heatsink when mounting, and let heat do the rest.    See the detailed instructions for appying Artic Silver 5 on their web site and follow them closely:
http://www.articsilver.com/arctic_silver_instructions.htm   (see paragraph 9)

Second, 55-57 is NOT "OK" for idle temps -- the low 40's are what you should be seeing.   The thermal spec for your CPU is only 62.1 °C => so you should definitely not have an idle temp that close to it !!

Third, at maximum fan speed the thermal resistance of your Freezer 7 Pro is 0.17 °C/W.   This IS good -- but not even close to the 0.12 °C/W you would get with a Zalman 9500 (which, at its SLOWEST fan speed is still only 0.16 °C/W)   The 9500 is by far the best air-cooled heatsink currently available:
http://www.newegg.com/Product/Product.asp?Item=N82E16835118003

It has a thermal resistance of only 0.12 °C/W  ==> this means the temperature of the CPU will only increase by 0.12 °C  for every watt of power the CPU consumes.   For a 930 P-IV, with a thermal design power of 95w, that means a temperature increase of only 11.4 °C at maximum CPU utilization (and that's assuming NO power used at idle -- so the increase from the idle temp will actually be less).  That should keep your system plenty cool.

However, your Freezer 7 Pro SHOULD be "good enough" here -- so I'd very carefully re-mount it being SURE you've done a good job of removing the thermal compound from both the CPU and the heatsink (scrape it off with a credit card;  then carefully wipe it with a clean cloth and isopropyl alcohol (allowing 10-15 minutes for drying); and then apply Artic Silver 5 as shown in paragraph 9 of the Artic Silver instructions.  

Have you installed the Intel Desktop Utilities?   If not, download them and install them -- then run a stress test and see what your temperature gets up to.   If you get above the thermal spec of the CPU you may want to kill the test -- there's no reason to stress it beyond that.   As I noted earlier, the thermal spec for your 930 is 62.1 °C.

One final thought:   How are you measuring the temperature?   The best way, since you have an Intel motherboard, is to use the temperature monitor in the Intel Desktop Utilities.   If you're just looking in the BIOS, you're not getting a good idle number -- since the BIOS code does not take full advantage of a P-IV's throttling capabilities.  (but the number's still too high)

0
 
LVL 70

Accepted Solution

by:
Gary Case earned 1000 total points
ID: 16725852
... by the way, the stock Intel heatsink/fan is fine => it's just noisy.   It does not, however, do as good a job of cooling as either your Freezer 7 Pro or (of course) the Zalman 9500.
0
 

Author Comment

by:Jman257
ID: 16725868
Well, I'm gonna answer my own question.  The problem was the fan rpms.  600-800 rpm was not moving enough air across the HS fins to dissipate the heat.  Therefore it was "backing up" and heating up the CPU and soon after the MB zones would climb.  Right now it's idling 10-13 C cooler than it was which is in the "normal" range according to others on this board and other forums.

The trick?  Disabling the auto fan settings in system BIOS.  If you're running an Intel board with 915-975 chipsets with an aftermarket cooler, and are experiencing some higher than desired temps, disable these auto fan settings.  If the whisping of air doesn't bother you, let the fans crank.  If it does, let the settings alone.  Chances are, the board will protect the chipset, CPU, etc. from any damage.  I like the temps to be as COOL as possible...
0
Eye-catchers on the conference table

Challenge: The i-unit group was not satisfied with the audio quality during remote meetings. They were looking for a portable solution with excellent audio quality for use in their conference room but also at their client’s offices.

 

Author Comment

by:Jman257
ID: 16725882
Gary thanks for the response.  I'm giving u credit for the answer.  The heatsink was getting very warm so I know the heat is being dissipated, just not pulled away from the HS itself.  After disabling the auto settings, all is well.  The fan can do it's job.
0
 
LVL 70

Expert Comment

by:Gary Case
ID: 16725891
You're welcome.   I'd still run the stress test I suggested (in Desktop Utilities) and see how high the CPU gets at 100% utilization.   It SHOULD stay under the thermal specification if your cooling is adequate.

... and next time you need a cooler, look at the Zalman :-)
0
 

Author Comment

by:Jman257
ID: 16725910
I love Zalman as well.  the 9500 is the BEST on the market, I know.  I picked this Freezer Pro 7 to stay within a budget.  I trimmed off where I could to make my friend happy.  It should be good for what he's gonna use it for.  I myself have a Zalman 7700Cu cooling a FX-57 and love it.  Full load temps (after running full load for 45 mins. to an hour) never exceed 51 C.  Just awesome.  Again, thanks for the input!
0
 
LVL 70

Expert Comment

by:Gary Case
ID: 16725926
The 7700Cu is an excellent cooler -- but note it's thermal resistance is 0.19 °C/W, compared to the 9500's 0.12 °C/W !!   I've got a 7000 on this system -- I'm very happy with it's performance as well (thermal resistance - 0.20 °C/W).   But I keep thinking about those extra 5 or 6 °C I could shave off my temps with a 9500 :-)     ... I probably won't switch ==> but I'm sure you can guess what the heatsink will be on my NEXT system :-)
0
 

Author Comment

by:Jman257
ID: 16726037
Well, I ran the Stress Test for 35 mins. with the CPU at 100% load and it never went over 61-62 C.  Most of the time it sat around 58 C.  Is this good?
0
 
LVL 70

Expert Comment

by:Gary Case
ID: 16726144
58 is good;  62 is right at the thermal spec (the number you don't want your CPU to go over).   Since you probably don't run your CPU at 100% very often, I'd say you're fine.   I would be sure and keep the interior of the case (especially the fins on the heatsink) dust free.   Blow out the case once every month or so with compressed air.   If you monitor your temps, you'll know when it needs this -- the idle temp will be a couple of degrees higher than normal when there's dust on the heatsink.
0

Featured Post

Evaluating UTMs? Here's what you need to know!

Evaluating a UTM appliance and vendor can prove to be an overwhelming exercise.  How can you make sure that you're getting the security that your organization needs without breaking the bank? Check out our UTM Buyer's Guide for more information on what you should be looking for!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

What do we know about Legacy Video Conferencing? - Full IT support needed! - Complicated systems at outrageous prices! - Intense training required! Highfive believes we need to embrace a new alternative.
New style of hardware planning for Microsoft Exchange server.
Is your OST file inaccessible, Need to transfer OST file from one computer to another? Want to convert OST file to PST? If the answer to any of the above question is yes, then look no further. With the help of Stellar OST to PST Converter, you can e…
Enter Foreign and Special Characters Enter characters you can't find on a keyboard using its ASCII code ... and learn how to make a handy reference for yourself using Excel ~ Use these codes in any Windows application! ... whether it is a Micr…
Suggested Courses

564 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question