What is a good temprature program? - DFWstangs Forums
 
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post #1 of 23 (permalink) Old 03-04-2005, 09:09 AM Thread Starter
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What is a good temprature program?

I am using speedfan right now, it says my cpu is 18*C. I think that is right, but my temprature on top of the heat sink is saying 25*C Whats a good application I can use just to verify using the motherboards temp monitor which is most likely a better indicator.

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post #2 of 23 (permalink) Old 03-04-2005, 10:12 AM
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I use Motherboard Monitor. I don't know if that is specifically what you are asking 4 though.
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post #3 of 23 (permalink) Old 03-04-2005, 11:07 AM Thread Starter
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Wow, my cpu really is running at 18*C, thanks tim.

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post #4 of 23 (permalink) Old 03-04-2005, 12:12 PM
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what do you have and how is it cooled? i have a p4 2.4c oc'ed to 3 gig and it runs at 40 deg C with a thermalright xp 90 and a vantec tornado 80mm fan.
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post #5 of 23 (permalink) Old 03-04-2005, 12:42 PM
 
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What is your ambient room temp like?
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post #6 of 23 (permalink) Old 03-04-2005, 01:20 PM Thread Starter
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I'm using a thermaltake aquaris iii water cooler, ambiet temp in my apartment is 70*F. The average temp inside the case is 35*C.

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post #7 of 23 (permalink) Old 03-04-2005, 01:22 PM Thread Starter
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Also, that temp was with the fan running full blast @ 5500rpms with no load on the cpu, with the fan on the raditor running at youcanthearit 2200rpms, its 21* C.

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post #8 of 23 (permalink) Old 03-04-2005, 01:56 PM
 
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How can you get sub ambient temps with just a fan cooled radiator?
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post #9 of 23 (permalink) Old 03-04-2005, 01:59 PM Thread Starter
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Quote:
Originally Posted by black96gtstick
How can you get sub ambient temps with just a fan cooled radiator?
I'm not quite sure what you are asking...

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post #10 of 23 (permalink) Old 03-04-2005, 02:02 PM
 
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Water cooling can only get your chip to room temp on a perfect setup right? How can it be lower than room temperature without a peltier setup?
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post #11 of 23 (permalink) Old 03-04-2005, 02:06 PM Thread Starter
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Quote:
Originally Posted by black96gtstick
Water cooling can only get your chip to room temp on a perfect setup right? How can it be lower than room temperature without a peltier setup?
18* C would bring it to about 65*F, the room temp is 70*F. With the fans blowing on the water, I dont see how it wouldnt be possible to bring it lower than ambient. The sun room also has its own a/c vent which right above the device which probably doesnt hurt either.

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post #12 of 23 (permalink) Old 03-04-2005, 02:13 PM
 
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The system can only be as cool as the air moving across the radiator
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post #13 of 23 (permalink) Old 03-04-2005, 03:04 PM Thread Starter
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Then maybe one of the sensors is wrong. I'll take a look at it when I get home.

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post #14 of 23 (permalink) Old 03-04-2005, 04:02 PM
 
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In MY experiences Ive found that I cant trust the onboard sensors, one day it says 100+ the next it says 80 while the ambient temp is around the same. I ended up getting this thing

http://www.aquajoe.com/compunurse.htm
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post #15 of 23 (permalink) Old 03-04-2005, 04:48 PM
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id check for any bios updates as well, they usually help to get the sensors a little more accurate. my abit is7 was know to read temps VERY high, but the bios update brought them in line with more accurate readings.
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post #16 of 23 (permalink) Old 03-04-2005, 05:08 PM
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Wow, those are great temps, here are some other programs that will display your temps.
Everest, SiSoftware Sandra, MBM5, Speedfan. Those are all i can think of right now.
What mobo do you have?

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post #17 of 23 (permalink) Old 03-04-2005, 05:25 PM
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don't bother relying on the on board monitors...they may be accurate to +/- 10*c if that, my abit is way off...

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post #18 of 23 (permalink) Old 03-04-2005, 05:27 PM Thread Starter
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Its amazing that all you guys keep saying that, all the reviews I read state that the mb sensors are as close as you can get to the real cpu temp since its right under it.

I'm going to put an external temp gauge on the cpu tonight and see what I can see. Right now its sitting on top of the heat sink.

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post #19 of 23 (permalink) Old 03-04-2005, 05:35 PM Thread Starter
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Sweet:

Nope,they aint accurate atall. I would guess that the acctuall sensor and electronicsmay be accurate to +-3c.

Then I would add, look at the positioning of it. BELOW the cpu. Any heat has to travel through the cpu package to get to the sensor. The package has a fairly high thermal resistance = not all of the heat goes through = you get a much lower reading.

THEN when installing the cpu, how many of you put paste on the sensor,and bend it upwards to get better contact?nope, I dont either.

THERE is however, a simpler way. If you can solder small simple circuits, then its also almost free. www.maxim-ic.com look at MAX6657. You should be able to get free samples too - I did.
This then gets a measurement from a sensor internal to the cpu, which needs no calibrating, and is in perfect place for temp measurement. Theres almost no thermal resistance and so very sudden changes in temp are noticable instantly.

I b0rked all my samples, however I may try again, Ill post in the electronics forum, if anyones interested in following this.

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post #20 of 23 (permalink) Old 03-05-2005, 06:13 AM Thread Starter
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Well, I put another external temprature guage on the cpu, the bios is off by .2 degrees. Its pretty accurate to me. The water temp was at 21* when I got home, 18* is totally possible one the cpu, especially since i neglected to add that my pc is right next to the window and the ambient temp is bit lower than the thermostat on the a/c. I have two temp gauges both confirming 18*C temps are capable, albeit a bit noisey. Of course temps under a load go back up to the upper 20* range, and with the fan at its lowest setting, the cpu idles at around 24*

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post #21 of 23 (permalink) Old 03-05-2005, 12:34 PM
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what kind of processor/motherboard do you have?
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post #22 of 23 (permalink) Old 03-05-2005, 12:38 PM Thread Starter
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post #23 of 23 (permalink) Old 03-05-2005, 03:08 PM
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I have my 2500 barton oced on a Thermaltake volc. heatsink with a tornado 80mm fan runs around 30s at the lowest rpm.

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