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Author Topic: 13 F degree drop!  (Read 3087 times)

winterstick

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13 F degree drop!
« Reply #10 on: March 28, 2002, 09:06:00 PM »

just one question: are you using the temp sensor on the mobo, or one on the heatsink/fan (or on the chip if you have an xp with a bios to read the temps off the embeded thermal diode)?

Because what could be happening is the air around the sensor is getting cooled off, thus leading to lower temps while the CPU's true temp stays the same.

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pewterpez

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13 F degree drop!
« Reply #11 on: March 28, 2002, 09:44:00 PM »

ohhh......foiled again!
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Gforce

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13 F degree drop!
« Reply #12 on: March 28, 2002, 09:50:00 PM »

Ah the real question!! :o

How we calibrate the cpu temp.  How do we tell what the real temp is.  I have extra probs but havn't found a way to get to the chip to atach it to the cpu?  

Ideas?  :-?
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winterstick

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13 F degree drop!
« Reply #13 on: March 28, 2002, 09:52:00 PM »

Quote

On 2002-03-28 21:50, Gforce wrote:
Ah the real question!! :o

How we calibrate the cpu temp.  How do we tell what the real temp is.  I have extra probs but havn't found a way to get to the chip to atach it to the cpu?  

Ideas?  :-?



you don't attach it to the cpu but you tape it next to the cpu, usually touching the side and take care when installing the heatink or you might move the probe and fry your chip.  oh yeah only use the really thin kinda.

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Gforce

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13 F degree drop!
« Reply #14 on: March 28, 2002, 09:54:00 PM »

And how does and external compare to using the MOBO sensor.  More Less acurate?
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winterstick

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13 F degree drop!
« Reply #15 on: March 28, 2002, 09:59:00 PM »

well first off I'm making some assumption, you use an AMD, your not using the embeded thermal diode in the athlon xp series.  so the temp sensor that they place on the motherboard will be less acurate than the one on the heatsink.

However, I believe that you are a P4 (I'm talking to Gforce) which has an embeded thermal diode, which is the most accurate of all of the temp measuring because its embded in the cpu itself.

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Gforce

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13 F degree drop!
« Reply #16 on: March 28, 2002, 10:09:00 PM »

Quote

However, I believe that you are a P4 (I'm talking to Gforce) which has an embeded thermal diode, which is the most accurate of all of the temp measuring because its embded in the cpu itself.



Thanks!!!! So I should save my efforts trying to locate a sensor on the cpu?

Next question, how do connect this embedded information to Digital Doc?

Oh, I found this artical that address the falicy of cooling the MOBO.  To sum up I think they are say by do so we are blowing off and cooling the sensor, not the cpu:http://www.overclockers.com/tips421/
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pewterpez

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13 F degree drop!
« Reply #17 on: March 28, 2002, 11:47:00 PM »

gforce - from what I know of, it's impossible to connect the internal thermistor to the digidoc....HOWEVER, you can probably get a fairly accurate reading by attaching the FLAT thermistor to the underside of the cpu and snaking the wires between the pins...
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mental_wizkid

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13 F degree drop!
« Reply #18 on: March 29, 2002, 12:02:00 AM »

ahh! WS, i am using the onboard one. that would explain such a drastic drop. but since it is cooling off the area where the sensor is, then it is still probably helping the cpu temp, even if it's just a little.
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winterstick

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13 F degree drop!
« Reply #19 on: March 29, 2002, 12:53:00 AM »

hehe get a small heatsink and slap it on the back... ok maybe not.  You can't hook the cpu temp to the digidoc, but you can have it display in your systray, or if you have an LCD display it on that.

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